/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 14:29:50,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 14:29:50,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 14:29:50,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 14:29:50,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 14:29:50,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 14:29:50,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 14:29:50,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 14:29:50,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 14:29:50,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 14:29:50,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 14:29:50,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 14:29:50,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 14:29:50,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 14:29:50,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 14:29:50,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 14:29:50,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 14:29:50,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 14:29:50,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 14:29:50,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 14:29:50,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 14:29:50,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 14:29:50,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 14:29:50,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 14:29:50,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 14:29:50,970 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 14:29:50,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 14:29:50,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 14:29:50,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 14:29:50,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 14:29:50,991 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 14:29:50,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 14:29:50,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 14:29:50,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 14:29:50,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 14:29:50,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 14:29:50,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 14:29:50,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 14:29:50,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 14:29:50,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 14:29:50,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 14:29:50,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 14:29:50,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 14:29:50,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 14:29:50,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 14:29:50,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 14:29:50,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 14:29:51,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 14:29:51,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 14:29:51,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 14:29:51,294 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 14:29:51,296 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 14:29:51,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl [2021-03-26 14:29:51,297 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl' [2021-03-26 14:29:51,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 14:29:51,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 14:29:51,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 14:29:51,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 14:29:51,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 14:29:51,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 14:29:51,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 14:29:51,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 14:29:51,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 14:29:51,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/1) ... [2021-03-26 14:29:51,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 14:29:51,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 14:29:51,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 14:29:51,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 14:29:51,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (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 [2021-03-26 14:29:51,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 14:29:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 14:29:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 14:29:51,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 14:29:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 14:29:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 14:29:51,450 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 14:29:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 14:29:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 14:29:51,451 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 14:29:51,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 14:29:51,829 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-03-26 14:29:51,831 INFO L202 PluginConnector]: Adding new model chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:29:51 BoogieIcfgContainer [2021-03-26 14:29:51,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 14:29:51,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 14:29:51,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 14:29:51,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 14:29:51,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:29:51" (1/2) ... [2021-03-26 14:29:51,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445af032 and model type chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 02:29:51, skipping insertion in model container [2021-03-26 14:29:51,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:29:51" (2/2) ... [2021-03-26 14:29:51,846 INFO L111 eAbstractionObserver]: Analyzing ICFG chromosome-opt-symm.wvr.bpl [2021-03-26 14:29:51,850 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 14:29:51,855 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 14:29:51,856 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 14:29:51,927 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 14:29:51,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 14:29:51,960 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 14:29:51,960 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 14:29:51,960 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 14:29:51,960 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 14:29:51,960 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 14:29:51,960 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 14:29:51,961 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 14:29:51,961 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 14:29:51,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 52 flow [2021-03-26 14:29:51,984 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-03-26 14:29:51,984 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 14:29:51,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 2/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 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. [2021-03-26 14:29:51,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 18 transitions, 52 flow [2021-03-26 14:29:51,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2021-03-26 14:29:51,991 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:52,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-26 14:29:52,005 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-26 14:29:52,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 40 flow [2021-03-26 14:29:52,011 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-03-26 14:29:52,011 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 14:29:52,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-26 14:29:52,012 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 14:29:52,116 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 14:29:52,116 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:29:52,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-26 14:29:52,126 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-03-26 14:29:52,127 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 14:29:52,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:52,127 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:52,128 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:52,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1541524741, now seen corresponding path program 1 times [2021-03-26 14:29:52,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:52,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24624679] [2021-03-26 14:29:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:52,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:52,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:52,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:29:52,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:52,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24624679] [2021-03-26 14:29:52,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:52,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:52,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270456053] [2021-03-26 14:29:52,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:52,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:52,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 21 [2021-03-26 14:29:52,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:52,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 21 [2021-03-26 14:29:52,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:52,305 INFO L129 PetriNetUnfolder]: 7/21 cut-off events. [2021-03-26 14:29:52,306 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 14:29:52,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 21 events. 7/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 29 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 29. Up to 6 conditions per place. [2021-03-26 14:29:52,307 INFO L132 encePairwiseOnDemand]: 17/21 looper letters, 5 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2021-03-26 14:29:52,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 58 flow [2021-03-26 14:29:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2021-03-26 14:29:52,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2021-03-26 14:29:52,316 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 69 transitions. [2021-03-26 14:29:52,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 69 transitions. [2021-03-26 14:29:52,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:52,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 69 transitions. [2021-03-26 14:29:52,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 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) [2021-03-26 14:29:52,324 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 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) [2021-03-26 14:29:52,325 INFO L185 Difference]: Start difference. First operand has 16 places, 11 transitions, 34 flow. Second operand 4 states and 69 transitions. [2021-03-26 14:29:52,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 58 flow [2021-03-26 14:29:52,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 50 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 14:29:52,329 INFO L241 Difference]: Finished difference. Result has 17 places, 13 transitions, 47 flow [2021-03-26 14:29:52,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=47, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2021-03-26 14:29:52,331 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2021-03-26 14:29:52,331 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:52,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-26 14:29:52,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-26 14:29:52,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 13 transitions, 47 flow [2021-03-26 14:29:52,353 INFO L129 PetriNetUnfolder]: 4/16 cut-off events. [2021-03-26 14:29:52,354 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 14:29:52,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 16 events. 4/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-03-26 14:29:52,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 14:29:52,615 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 14:29:52,615 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:29:52,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-03-26 14:29:52,618 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 41 flow [2021-03-26 14:29:52,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:52,619 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:52,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 14:29:52,619 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1583311973, now seen corresponding path program 2 times [2021-03-26 14:29:52,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:52,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184580316] [2021-03-26 14:29:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:52,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:52,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:52,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:29:52,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:52,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:52,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184580316] [2021-03-26 14:29:52,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:52,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:52,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825850080] [2021-03-26 14:29:52,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:52,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:52,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:52,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:52,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 22 [2021-03-26 14:29:52,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 41 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:52,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 22 [2021-03-26 14:29:52,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:52,732 INFO L129 PetriNetUnfolder]: 7/23 cut-off events. [2021-03-26 14:29:52,733 INFO L130 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2021-03-26 14:29:52,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 23 events. 7/23 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 39. Up to 9 conditions per place. [2021-03-26 14:29:52,733 INFO L132 encePairwiseOnDemand]: 17/22 looper letters, 5 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2021-03-26 14:29:52,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 70 flow [2021-03-26 14:29:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 14:29:52,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2021-03-26 14:29:52,737 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 14:29:52,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 14:29:52,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:52,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 14:29:52,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,739 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,739 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 41 flow. Second operand 4 states and 70 transitions. [2021-03-26 14:29:52,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 70 flow [2021-03-26 14:29:52,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 16 transitions, 62 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 14:29:52,740 INFO L241 Difference]: Finished difference. Result has 19 places, 14 transitions, 60 flow [2021-03-26 14:29:52,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=19, PETRI_TRANSITIONS=14} [2021-03-26 14:29:52,743 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2021-03-26 14:29:52,743 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:52,744 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-26 14:29:52,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-26 14:29:52,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 60 flow [2021-03-26 14:29:52,750 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-03-26 14:29:52,750 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 14:29:52,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 17 events. 4/17 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 24. Up to 4 conditions per place. [2021-03-26 14:29:52,752 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 14:29:52,958 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 14:29:52,958 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:29:52,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 215 [2021-03-26 14:29:52,961 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 54 flow [2021-03-26 14:29:52,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:52,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:52,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:52,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 14:29:52,961 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1525824884, now seen corresponding path program 1 times [2021-03-26 14:29:52,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:52,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090038870] [2021-03-26 14:29:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:29:53,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:29:53,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:53,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090038870] [2021-03-26 14:29:53,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:53,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:53,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712362694] [2021-03-26 14:29:53,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:53,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:53,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:53,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:53,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 14:29:53,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:53,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 14:29:53,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:53,079 INFO L129 PetriNetUnfolder]: 7/26 cut-off events. [2021-03-26 14:29:53,080 INFO L130 PetriNetUnfolder]: For 36/40 co-relation queries the response was YES. [2021-03-26 14:29:53,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 26 events. 7/26 cut-off events. For 36/40 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 48 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 53. Up to 11 conditions per place. [2021-03-26 14:29:53,080 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2021-03-26 14:29:53,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 87 flow [2021-03-26 14:29:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 14:29:53,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-26 14:29:53,082 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:53,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,084 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,084 INFO L185 Difference]: Start difference. First operand has 18 places, 13 transitions, 54 flow. Second operand 4 states and 70 transitions. [2021-03-26 14:29:53,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 87 flow [2021-03-26 14:29:53,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 74 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 14:29:53,086 INFO L241 Difference]: Finished difference. Result has 21 places, 15 transitions, 66 flow [2021-03-26 14:29:53,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2021-03-26 14:29:53,086 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 5 predicate places. [2021-03-26 14:29:53,086 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:53,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-26 14:29:53,087 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-26 14:29:53,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 15 transitions, 66 flow [2021-03-26 14:29:53,091 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-26 14:29:53,091 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-26 14:29:53,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 24 events. 5/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 35. Up to 8 conditions per place. [2021-03-26 14:29:53,091 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 14:29:53,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:53,093 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:53,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 14:29:53,093 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 66 flow [2021-03-26 14:29:53,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:53,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:53,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 14:29:53,094 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:53,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:53,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1515270503, now seen corresponding path program 1 times [2021-03-26 14:29:53,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:53,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316220911] [2021-03-26 14:29:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:29:53,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:29:53,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:53,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316220911] [2021-03-26 14:29:53,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:53,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:53,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319765946] [2021-03-26 14:29:53,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:53,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:53,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:53,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:53,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 14:29:53,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:53,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 14:29:53,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:53,167 INFO L129 PetriNetUnfolder]: 10/40 cut-off events. [2021-03-26 14:29:53,167 INFO L130 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2021-03-26 14:29:53,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 40 events. 10/40 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 114 event pairs, 1 based on Foata normal form. 2/33 useless extension candidates. Maximal degree in co-relation 73. Up to 13 conditions per place. [2021-03-26 14:29:53,168 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 4 changer transitions 0/19 dead transitions. [2021-03-26 14:29:53,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 98 flow [2021-03-26 14:29:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:53,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-26 14:29:53,169 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-26 14:29:53,169 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:53,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,171 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,171 INFO L185 Difference]: Start difference. First operand has 21 places, 15 transitions, 66 flow. Second operand 4 states and 71 transitions. [2021-03-26 14:29:53,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 98 flow [2021-03-26 14:29:53,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 94 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 14:29:53,173 INFO L241 Difference]: Finished difference. Result has 25 places, 18 transitions, 91 flow [2021-03-26 14:29:53,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2021-03-26 14:29:53,173 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 9 predicate places. [2021-03-26 14:29:53,173 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:53,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 18 transitions, 91 flow [2021-03-26 14:29:53,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 18 transitions, 91 flow [2021-03-26 14:29:53,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 18 transitions, 91 flow [2021-03-26 14:29:53,180 INFO L129 PetriNetUnfolder]: 8/36 cut-off events. [2021-03-26 14:29:53,180 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-03-26 14:29:53,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 8/36 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 65. Up to 12 conditions per place. [2021-03-26 14:29:53,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 14:29:53,182 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:53,182 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:53,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 14:29:53,183 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 91 flow [2021-03-26 14:29:53,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:53,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:53,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 14:29:53,184 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:53,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1570382679, now seen corresponding path program 2 times [2021-03-26 14:29:53,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:53,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608672653] [2021-03-26 14:29:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:29:53,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:29:53,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:53,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608672653] [2021-03-26 14:29:53,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:53,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:53,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474648740] [2021-03-26 14:29:53,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:53,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:53,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:53,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:53,218 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 14:29:53,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:53,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 14:29:53,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:53,262 INFO L129 PetriNetUnfolder]: 9/35 cut-off events. [2021-03-26 14:29:53,262 INFO L130 PetriNetUnfolder]: For 47/53 co-relation queries the response was YES. [2021-03-26 14:29:53,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 35 events. 9/35 cut-off events. For 47/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 93 event pairs, 1 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 79. Up to 13 conditions per place. [2021-03-26 14:29:53,263 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 1/19 dead transitions. [2021-03-26 14:29:53,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 115 flow [2021-03-26 14:29:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 14:29:53,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-26 14:29:53,265 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:53,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 14:29:53,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,267 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,267 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 91 flow. Second operand 4 states and 70 transitions. [2021-03-26 14:29:53,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 115 flow [2021-03-26 14:29:53,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 111 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-26 14:29:53,269 INFO L241 Difference]: Finished difference. Result has 30 places, 18 transitions, 100 flow [2021-03-26 14:29:53,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2021-03-26 14:29:53,269 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 14 predicate places. [2021-03-26 14:29:53,269 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:53,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 18 transitions, 100 flow [2021-03-26 14:29:53,270 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 18 transitions, 100 flow [2021-03-26 14:29:53,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 100 flow [2021-03-26 14:29:53,274 INFO L129 PetriNetUnfolder]: 7/30 cut-off events. [2021-03-26 14:29:53,275 INFO L130 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2021-03-26 14:29:53,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 30 events. 7/30 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2021-03-26 14:29:53,275 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 14:29:53,277 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:53,277 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:53,277 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 14:29:53,278 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 100 flow [2021-03-26 14:29:53,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:53,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:53,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 14:29:53,278 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:53,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1470413624, now seen corresponding path program 2 times [2021-03-26 14:29:53,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:53,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738564876] [2021-03-26 14:29:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:29:53,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:29:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:53,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738564876] [2021-03-26 14:29:53,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:53,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:53,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776546629] [2021-03-26 14:29:53,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:53,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:53,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:53,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:53,327 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 14:29:53,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:53,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 14:29:53,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:53,374 INFO L129 PetriNetUnfolder]: 9/28 cut-off events. [2021-03-26 14:29:53,374 INFO L130 PetriNetUnfolder]: For 60/66 co-relation queries the response was YES. [2021-03-26 14:29:53,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 28 events. 9/28 cut-off events. For 60/66 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 82. Up to 14 conditions per place. [2021-03-26 14:29:53,375 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 4 changer transitions 1/20 dead transitions. [2021-03-26 14:29:53,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 20 transitions, 132 flow [2021-03-26 14:29:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:53,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-26 14:29:53,378 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-26 14:29:53,378 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:53,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-26 14:29:53,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,381 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,381 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 100 flow. Second operand 4 states and 71 transitions. [2021-03-26 14:29:53,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 20 transitions, 132 flow [2021-03-26 14:29:53,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 118 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-26 14:29:53,386 INFO L241 Difference]: Finished difference. Result has 29 places, 19 transitions, 103 flow [2021-03-26 14:29:53,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2021-03-26 14:29:53,386 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 13 predicate places. [2021-03-26 14:29:53,386 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:53,386 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 103 flow [2021-03-26 14:29:53,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 103 flow [2021-03-26 14:29:53,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 19 transitions, 103 flow [2021-03-26 14:29:53,396 INFO L129 PetriNetUnfolder]: 8/26 cut-off events. [2021-03-26 14:29:53,396 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 14:29:53,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 26 events. 8/26 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 58. Up to 9 conditions per place. [2021-03-26 14:29:53,396 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-26 14:29:53,397 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:53,397 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:53,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 14:29:53,398 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 103 flow [2021-03-26 14:29:53,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:53,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:53,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:53,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 14:29:53,399 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:53,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1416993665, now seen corresponding path program 1 times [2021-03-26 14:29:53,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:53,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677427398] [2021-03-26 14:29:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:53,531 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-03-26 14:29:53,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:29:53,556 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-03-26 14:29:53,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:29:53,569 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-26 14:29:53,573 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-03-26 14:29:53,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677427398] [2021-03-26 14:29:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980453719] [2021-03-26 14:29:53,613 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 [2021-03-26 14:29:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:53,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:29:53,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:29:53,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:53,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:53,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:29:53,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:53,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:29:53,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,729 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:29:53,731 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:29:53,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:53,733 INFO L142 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-03-26 14:29:53,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:29:53,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 14:29:53,752 INFO L142 QuantifierPusher]: treesize reduction 158, result has 34.2 percent of original size [2021-03-26 14:29:53,754 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-26 14:29:53,765 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-26 14:29:53,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:29:53,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:29:53,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:29:53,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:29:53,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:29:53,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 14:29:53,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,874 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:29:53,874 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:53,878 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,883 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:29:53,884 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:53,885 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,892 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 14:29:53,893 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:53,894 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,897 INFO L142 QuantifierPusher]: treesize reduction 55, result has 54.5 percent of original size [2021-03-26 14:29:53,898 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:53,900 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,901 INFO L142 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size [2021-03-26 14:29:53,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:29:53,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:53,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:29:53,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:29:53,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 14:29:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 14:29:53,951 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-26 14:29:53,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,954 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:29:53,955 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:29:53,960 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,964 INFO L142 QuantifierPusher]: treesize reduction 131, result has 55.6 percent of original size [2021-03-26 14:29:53,968 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:29:53,972 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,977 INFO L142 QuantifierPusher]: treesize reduction 140, result has 38.9 percent of original size [2021-03-26 14:29:53,982 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:29:53,985 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:53,988 INFO L142 QuantifierPusher]: treesize reduction 84, result has 19.2 percent of original size [2021-03-26 14:29:53,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:29:53,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:29:53,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:53,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:53,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:53,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:54,034 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:29:54,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:29:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:29:54,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:54,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:54,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:29:54,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:29:54,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:29:54,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:54,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,059 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 14:29:54,059 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:54,060 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,061 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:29:54,062 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:54,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,071 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:29:54,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:54,074 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:54,076 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-26 14:29:54,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:54,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:54,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:54,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:29:54,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:29:54,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198636663] [2021-03-26 14:29:54,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:29:54,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:54,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:29:54,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:29:54,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2021-03-26 14:29:54,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 103 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) [2021-03-26 14:29:54,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:54,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2021-03-26 14:29:54,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:54,593 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2021-03-26 14:29:54,768 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-03-26 14:29:55,266 INFO L129 PetriNetUnfolder]: 39/93 cut-off events. [2021-03-26 14:29:55,266 INFO L130 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2021-03-26 14:29:55,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 93 events. 39/93 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 316 event pairs, 0 based on Foata normal form. 3/85 useless extension candidates. Maximal degree in co-relation 251. Up to 34 conditions per place. [2021-03-26 14:29:55,267 INFO L132 encePairwiseOnDemand]: 15/23 looper letters, 22 selfloop transitions, 25 changer transitions 3/54 dead transitions. [2021-03-26 14:29:55,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 353 flow [2021-03-26 14:29:55,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 14:29:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 14:29:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 196 transitions. [2021-03-26 14:29:55,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5681159420289855 [2021-03-26 14:29:55,269 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 196 transitions. [2021-03-26 14:29:55,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 196 transitions. [2021-03-26 14:29:55,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:55,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 196 transitions. [2021-03-26 14:29:55,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.066666666666666) internal successors, (196), 15 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) [2021-03-26 14:29:55,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 23.0) internal successors, (368), 16 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:55,271 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 23.0) internal successors, (368), 16 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:55,272 INFO L185 Difference]: Start difference. First operand has 28 places, 19 transitions, 103 flow. Second operand 15 states and 196 transitions. [2021-03-26 14:29:55,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 353 flow [2021-03-26 14:29:55,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 335 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 14:29:55,274 INFO L241 Difference]: Finished difference. Result has 46 places, 39 transitions, 275 flow [2021-03-26 14:29:55,274 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=275, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2021-03-26 14:29:55,275 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 30 predicate places. [2021-03-26 14:29:55,275 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:55,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 39 transitions, 275 flow [2021-03-26 14:29:55,275 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 39 transitions, 275 flow [2021-03-26 14:29:55,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 275 flow [2021-03-26 14:29:55,281 INFO L129 PetriNetUnfolder]: 24/68 cut-off events. [2021-03-26 14:29:55,282 INFO L130 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2021-03-26 14:29:55,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 68 events. 24/68 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 218 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 212. Up to 23 conditions per place. [2021-03-26 14:29:55,283 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:29:56,400 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 14:29:56,400 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 14:29:56,400 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1125 [2021-03-26 14:29:56,401 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 307 flow [2021-03-26 14:29:56,401 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) [2021-03-26 14:29:56,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:56,401 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:56,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-26 14:29:56,623 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 258443631, now seen corresponding path program 2 times [2021-03-26 14:29:56,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:56,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500334953] [2021-03-26 14:29:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:56,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:56,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,706 INFO L142 QuantifierPusher]: treesize reduction 29, result has 75.6 percent of original size [2021-03-26 14:29:56,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 14:29:56,764 INFO L142 QuantifierPusher]: treesize reduction 2610, result has 16.9 percent of original size [2021-03-26 14:29:56,768 INFO L147 QuantifierPusher]: treesize reduction 35, result has 93.4 percent of original size 496 [2021-03-26 14:29:56,876 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:29:56,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:29:56,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:56,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500334953] [2021-03-26 14:29:56,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53640546] [2021-03-26 14:29:56,901 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 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 [2021-03-26 14:29:56,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:29:56,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:29:56,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:29:56,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:29:56,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:56,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:56,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:56,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:56,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:56,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:29:56,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:56,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:29:56,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,960 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:29:56,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:29:56,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:56,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:56,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:29:56,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:29:56,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:56,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:56,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:29:56,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:29:56,975 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-26 14:29:56,977 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-26 14:29:56,978 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-26 14:29:56,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:29:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:29:57,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:29:57,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:29:57,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:29:57,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,028 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:29:57,028 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:57,030 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,031 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:29:57,031 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:57,032 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:29:57,036 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:29:57,036 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,038 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-26 14:29:57,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:29:57,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:29:57,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:29:57,114 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.5 percent of original size [2021-03-26 14:29:57,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:29:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-26 14:29:57,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-03-26 14:29:57,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-03-26 14:29:57,126 INFO L142 QuantifierPusher]: treesize reduction 265, result has 41.1 percent of original size [2021-03-26 14:29:57,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,130 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:29:57,131 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:29:57,132 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,135 INFO L142 QuantifierPusher]: treesize reduction 206, result has 35.0 percent of original size [2021-03-26 14:29:57,135 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:29:57,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,138 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-26 14:29:57,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:29:57,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:57,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:57,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:29:57,174 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:29:57,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:29:57,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:29:57,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:29:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:29:57,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:29:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,189 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:29:57,189 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:29:57,190 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,193 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:29:57,194 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:29:57,195 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:29:57,197 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:29:57,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:57,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:29:57,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:29:57,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404126996] [2021-03-26 14:29:57,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:29:57,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:57,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:29:57,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:29:57,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2021-03-26 14:29:57,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 307 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) [2021-03-26 14:29:57,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:57,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2021-03-26 14:29:57,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:57,649 INFO L129 PetriNetUnfolder]: 44/105 cut-off events. [2021-03-26 14:29:57,649 INFO L130 PetriNetUnfolder]: For 263/263 co-relation queries the response was YES. [2021-03-26 14:29:57,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 105 events. 44/105 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 381 event pairs, 1 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 457. Up to 73 conditions per place. [2021-03-26 14:29:57,650 INFO L132 encePairwiseOnDemand]: 22/29 looper letters, 35 selfloop transitions, 14 changer transitions 1/54 dead transitions. [2021-03-26 14:29:57,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 553 flow [2021-03-26 14:29:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:29:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:29:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 134 transitions. [2021-03-26 14:29:57,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2021-03-26 14:29:57,651 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 134 transitions. [2021-03-26 14:29:57,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 134 transitions. [2021-03-26 14:29:57,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:57,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 134 transitions. [2021-03-26 14:29:57,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.4) internal successors, (134), 10 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) [2021-03-26 14:29:57,652 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) [2021-03-26 14:29:57,653 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) [2021-03-26 14:29:57,653 INFO L185 Difference]: Start difference. First operand has 42 places, 38 transitions, 307 flow. Second operand 10 states and 134 transitions. [2021-03-26 14:29:57,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 553 flow [2021-03-26 14:29:57,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 391 flow, removed 74 selfloop flow, removed 8 redundant places. [2021-03-26 14:29:57,656 INFO L241 Difference]: Finished difference. Result has 46 places, 51 transitions, 334 flow [2021-03-26 14:29:57,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=334, PETRI_PLACES=46, PETRI_TRANSITIONS=51} [2021-03-26 14:29:57,657 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 30 predicate places. [2021-03-26 14:29:57,657 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:57,657 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 51 transitions, 334 flow [2021-03-26 14:29:57,657 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 51 transitions, 334 flow [2021-03-26 14:29:57,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 51 transitions, 334 flow [2021-03-26 14:29:57,665 INFO L129 PetriNetUnfolder]: 38/95 cut-off events. [2021-03-26 14:29:57,665 INFO L130 PetriNetUnfolder]: For 132/136 co-relation queries the response was YES. [2021-03-26 14:29:57,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 95 events. 38/95 cut-off events. For 132/136 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 350 event pairs, 0 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 291. Up to 25 conditions per place. [2021-03-26 14:29:57,666 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 14:29:58,289 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:58,290 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:29:58,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 633 [2021-03-26 14:29:58,290 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 50 transitions, 336 flow [2021-03-26 14:29:58,291 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) [2021-03-26 14:29:58,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:58,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:58,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-26 14:29:58,511 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:58,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1943663885, now seen corresponding path program 1 times [2021-03-26 14:29:58,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:58,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253078741] [2021-03-26 14:29:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:58,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:29:58,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:29:58,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:58,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253078741] [2021-03-26 14:29:58,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:58,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:58,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751840390] [2021-03-26 14:29:58,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:58,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:58,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:58,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:58,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-26 14:29:58,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 50 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:58,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-26 14:29:58,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:58,625 INFO L129 PetriNetUnfolder]: 50/128 cut-off events. [2021-03-26 14:29:58,625 INFO L130 PetriNetUnfolder]: For 377/413 co-relation queries the response was YES. [2021-03-26 14:29:58,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 128 events. 50/128 cut-off events. For 377/413 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 524 event pairs, 0 based on Foata normal form. 6/125 useless extension candidates. Maximal degree in co-relation 466. Up to 41 conditions per place. [2021-03-26 14:29:58,627 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 40 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2021-03-26 14:29:58,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 58 transitions, 484 flow [2021-03-26 14:29:58,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-03-26 14:29:58,628 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2021-03-26 14:29:58,628 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-03-26 14:29:58,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-03-26 14:29:58,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:58,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-03-26 14:29:58,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,630 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,630 INFO L185 Difference]: Start difference. First operand has 44 places, 50 transitions, 336 flow. Second operand 4 states and 84 transitions. [2021-03-26 14:29:58,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 58 transitions, 484 flow [2021-03-26 14:29:58,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 400 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-03-26 14:29:58,635 INFO L241 Difference]: Finished difference. Result has 45 places, 48 transitions, 274 flow [2021-03-26 14:29:58,635 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2021-03-26 14:29:58,635 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 29 predicate places. [2021-03-26 14:29:58,635 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:58,635 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 48 transitions, 274 flow [2021-03-26 14:29:58,635 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 48 transitions, 274 flow [2021-03-26 14:29:58,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 48 transitions, 274 flow [2021-03-26 14:29:58,651 INFO L129 PetriNetUnfolder]: 46/125 cut-off events. [2021-03-26 14:29:58,652 INFO L130 PetriNetUnfolder]: For 187/203 co-relation queries the response was YES. [2021-03-26 14:29:58,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 125 events. 46/125 cut-off events. For 187/203 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 541 event pairs, 0 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 327. Up to 36 conditions per place. [2021-03-26 14:29:58,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 14:29:58,656 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:58,656 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:58,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 14:29:58,657 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 274 flow [2021-03-26 14:29:58,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:58,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:58,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 14:29:58,657 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1481936698, now seen corresponding path program 1 times [2021-03-26 14:29:58,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:58,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417012192] [2021-03-26 14:29:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:58,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:29:58,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:29:58,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:58,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417012192] [2021-03-26 14:29:58,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:58,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:58,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286378592] [2021-03-26 14:29:58,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:58,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:58,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-26 14:29:58,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:58,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-26 14:29:58,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:58,754 INFO L129 PetriNetUnfolder]: 47/131 cut-off events. [2021-03-26 14:29:58,754 INFO L130 PetriNetUnfolder]: For 344/381 co-relation queries the response was YES. [2021-03-26 14:29:58,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 131 events. 47/131 cut-off events. For 344/381 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 574 event pairs, 0 based on Foata normal form. 8/131 useless extension candidates. Maximal degree in co-relation 402. Up to 59 conditions per place. [2021-03-26 14:29:58,755 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 37 selfloop transitions, 10 changer transitions 0/57 dead transitions. [2021-03-26 14:29:58,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 413 flow [2021-03-26 14:29:58,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-03-26 14:29:58,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2021-03-26 14:29:58,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 82 transitions. [2021-03-26 14:29:58,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 82 transitions. [2021-03-26 14:29:58,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:58,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 82 transitions. [2021-03-26 14:29:58,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,757 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,757 INFO L185 Difference]: Start difference. First operand has 45 places, 48 transitions, 274 flow. Second operand 4 states and 82 transitions. [2021-03-26 14:29:58,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 413 flow [2021-03-26 14:29:58,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 14:29:58,761 INFO L241 Difference]: Finished difference. Result has 48 places, 49 transitions, 307 flow [2021-03-26 14:29:58,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2021-03-26 14:29:58,762 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 32 predicate places. [2021-03-26 14:29:58,762 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:58,762 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 49 transitions, 307 flow [2021-03-26 14:29:58,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 49 transitions, 307 flow [2021-03-26 14:29:58,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 49 transitions, 307 flow [2021-03-26 14:29:58,775 INFO L129 PetriNetUnfolder]: 42/129 cut-off events. [2021-03-26 14:29:58,775 INFO L130 PetriNetUnfolder]: For 205/210 co-relation queries the response was YES. [2021-03-26 14:29:58,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 129 events. 42/129 cut-off events. For 205/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 613 event pairs, 1 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 343. Up to 34 conditions per place. [2021-03-26 14:29:58,777 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:29:58,780 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:58,780 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:58,780 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 14:29:58,781 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 307 flow [2021-03-26 14:29:58,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:58,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:58,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 14:29:58,782 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:58,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:58,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1590613092, now seen corresponding path program 1 times [2021-03-26 14:29:58,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:58,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342849952] [2021-03-26 14:29:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:58,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:29:58,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:29:58,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:58,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342849952] [2021-03-26 14:29:58,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:58,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:58,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145554021] [2021-03-26 14:29:58,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:58,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:58,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-26 14:29:58,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:58,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-26 14:29:58,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:58,889 INFO L129 PetriNetUnfolder]: 46/127 cut-off events. [2021-03-26 14:29:58,889 INFO L130 PetriNetUnfolder]: For 371/379 co-relation queries the response was YES. [2021-03-26 14:29:58,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 127 events. 46/127 cut-off events. For 371/379 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 547 event pairs, 0 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 429. Up to 69 conditions per place. [2021-03-26 14:29:58,890 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 32 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2021-03-26 14:29:58,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 417 flow [2021-03-26 14:29:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2021-03-26 14:29:58,891 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2021-03-26 14:29:58,891 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 81 transitions. [2021-03-26 14:29:58,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 81 transitions. [2021-03-26 14:29:58,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:58,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 81 transitions. [2021-03-26 14:29:58,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,892 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:58,892 INFO L185 Difference]: Start difference. First operand has 48 places, 49 transitions, 307 flow. Second operand 4 states and 81 transitions. [2021-03-26 14:29:58,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 417 flow [2021-03-26 14:29:58,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 408 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 14:29:58,896 INFO L241 Difference]: Finished difference. Result has 51 places, 49 transitions, 322 flow [2021-03-26 14:29:58,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2021-03-26 14:29:58,897 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 35 predicate places. [2021-03-26 14:29:58,897 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:58,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 322 flow [2021-03-26 14:29:58,898 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 49 transitions, 322 flow [2021-03-26 14:29:58,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 322 flow [2021-03-26 14:29:58,914 INFO L129 PetriNetUnfolder]: 37/119 cut-off events. [2021-03-26 14:29:58,914 INFO L130 PetriNetUnfolder]: For 181/187 co-relation queries the response was YES. [2021-03-26 14:29:58,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 119 events. 37/119 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 568 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 329. Up to 29 conditions per place. [2021-03-26 14:29:58,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:29:58,920 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:58,920 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:58,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 14:29:58,922 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 322 flow [2021-03-26 14:29:58,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:58,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:58,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-26 14:29:58,922 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:58,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:58,923 INFO L82 PathProgramCache]: Analyzing trace with hash -427163769, now seen corresponding path program 1 times [2021-03-26 14:29:58,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:58,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577356053] [2021-03-26 14:29:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:58,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:58,966 INFO L142 QuantifierPusher]: treesize reduction 46, result has 27.0 percent of original size [2021-03-26 14:29:58,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:29:58,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:58,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:58,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577356053] [2021-03-26 14:29:58,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:58,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:58,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133821164] [2021-03-26 14:29:58,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:58,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:58,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:58,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:58,975 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-26 14:29:58,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:58,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:58,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-26 14:29:58,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:59,030 INFO L129 PetriNetUnfolder]: 44/119 cut-off events. [2021-03-26 14:29:59,030 INFO L130 PetriNetUnfolder]: For 412/444 co-relation queries the response was YES. [2021-03-26 14:29:59,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 119 events. 44/119 cut-off events. For 412/444 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 484 event pairs, 0 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 423. Up to 73 conditions per place. [2021-03-26 14:29:59,031 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 33 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2021-03-26 14:29:59,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 398 flow [2021-03-26 14:29:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2021-03-26 14:29:59,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2021-03-26 14:29:59,033 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 78 transitions. [2021-03-26 14:29:59,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 78 transitions. [2021-03-26 14:29:59,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:59,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 78 transitions. [2021-03-26 14:29:59,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 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) [2021-03-26 14:29:59,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:59,034 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:59,034 INFO L185 Difference]: Start difference. First operand has 51 places, 49 transitions, 322 flow. Second operand 4 states and 78 transitions. [2021-03-26 14:29:59,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 398 flow [2021-03-26 14:29:59,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 380 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 14:29:59,037 INFO L241 Difference]: Finished difference. Result has 52 places, 47 transitions, 299 flow [2021-03-26 14:29:59,038 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2021-03-26 14:29:59,038 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 36 predicate places. [2021-03-26 14:29:59,038 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:59,038 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 47 transitions, 299 flow [2021-03-26 14:29:59,038 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 47 transitions, 299 flow [2021-03-26 14:29:59,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 299 flow [2021-03-26 14:29:59,046 INFO L129 PetriNetUnfolder]: 36/110 cut-off events. [2021-03-26 14:29:59,046 INFO L130 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES. [2021-03-26 14:29:59,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 110 events. 36/110 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 476 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 304. Up to 29 conditions per place. [2021-03-26 14:29:59,047 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:29:59,050 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:59,050 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:59,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 14:29:59,051 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 299 flow [2021-03-26 14:29:59,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:59,051 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:59,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-26 14:29:59,051 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1607236470, now seen corresponding path program 1 times [2021-03-26 14:29:59,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:59,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640141825] [2021-03-26 14:29:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:59,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:29:59,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:29:59,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:59,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640141825] [2021-03-26 14:29:59,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:59,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:29:59,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267337280] [2021-03-26 14:29:59,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:29:59,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:59,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:29:59,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:29:59,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-26 14:29:59,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:59,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-26 14:29:59,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:59,151 INFO L129 PetriNetUnfolder]: 42/110 cut-off events. [2021-03-26 14:29:59,152 INFO L130 PetriNetUnfolder]: For 385/429 co-relation queries the response was YES. [2021-03-26 14:29:59,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 110 events. 42/110 cut-off events. For 385/429 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 425 event pairs, 0 based on Foata normal form. 7/113 useless extension candidates. Maximal degree in co-relation 394. Up to 46 conditions per place. [2021-03-26 14:29:59,153 INFO L132 encePairwiseOnDemand]: 29/33 looper letters, 37 selfloop transitions, 3 changer transitions 1/51 dead transitions. [2021-03-26 14:29:59,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 402 flow [2021-03-26 14:29:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:29:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:29:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-03-26 14:29:59,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-03-26 14:29:59,154 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 77 transitions. [2021-03-26 14:29:59,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 77 transitions. [2021-03-26 14:29:59,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:59,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 77 transitions. [2021-03-26 14:29:59,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:59,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 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) [2021-03-26 14:29:59,155 INFO L185 Difference]: Start difference. First operand has 51 places, 47 transitions, 299 flow. Second operand 4 states and 77 transitions. [2021-03-26 14:29:59,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 402 flow [2021-03-26 14:29:59,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 14:29:59,158 INFO L241 Difference]: Finished difference. Result has 52 places, 45 transitions, 282 flow [2021-03-26 14:29:59,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2021-03-26 14:29:59,158 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 36 predicate places. [2021-03-26 14:29:59,158 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:59,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 45 transitions, 282 flow [2021-03-26 14:29:59,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 45 transitions, 282 flow [2021-03-26 14:29:59,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 282 flow [2021-03-26 14:29:59,167 INFO L129 PetriNetUnfolder]: 34/101 cut-off events. [2021-03-26 14:29:59,167 INFO L130 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2021-03-26 14:29:59,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 101 events. 34/101 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 418 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 285. Up to 29 conditions per place. [2021-03-26 14:29:59,168 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:29:59,171 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:59,171 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:59,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 14:29:59,171 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 282 flow [2021-03-26 14:29:59,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:59,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:59,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-26 14:29:59,172 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1505141563, now seen corresponding path program 1 times [2021-03-26 14:29:59,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:59,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034271223] [2021-03-26 14:29:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:59,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:59,234 INFO L142 QuantifierPusher]: treesize reduction 220, result has 19.7 percent of original size [2021-03-26 14:29:59,235 INFO L147 QuantifierPusher]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-03-26 14:29:59,282 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:29:59,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:29:59,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:59,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034271223] [2021-03-26 14:29:59,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:59,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:29:59,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881549822] [2021-03-26 14:29:59,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:29:59,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:59,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:29:59,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:29:59,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-26 14:29:59,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:59,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-26 14:29:59,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:59,711 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-26 14:29:59,711 INFO L130 PetriNetUnfolder]: For 354/361 co-relation queries the response was YES. [2021-03-26 14:29:59,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 146 events. 62/146 cut-off events. For 354/361 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 593 event pairs, 4 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 550. Up to 103 conditions per place. [2021-03-26 14:29:59,712 INFO L132 encePairwiseOnDemand]: 24/33 looper letters, 33 selfloop transitions, 23 changer transitions 1/61 dead transitions. [2021-03-26 14:29:59,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 492 flow [2021-03-26 14:29:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:29:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:29:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2021-03-26 14:29:59,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2021-03-26 14:29:59,714 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 138 transitions. [2021-03-26 14:29:59,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 138 transitions. [2021-03-26 14:29:59,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:59,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 138 transitions. [2021-03-26 14:29:59,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.8) internal successors, (138), 10 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) [2021-03-26 14:29:59,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,715 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,715 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 282 flow. Second operand 10 states and 138 transitions. [2021-03-26 14:29:59,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 492 flow [2021-03-26 14:29:59,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 61 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 14:29:59,718 INFO L241 Difference]: Finished difference. Result has 61 places, 57 transitions, 438 flow [2021-03-26 14:29:59,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=438, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2021-03-26 14:29:59,719 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 45 predicate places. [2021-03-26 14:29:59,719 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:59,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 57 transitions, 438 flow [2021-03-26 14:29:59,719 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 57 transitions, 438 flow [2021-03-26 14:29:59,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 438 flow [2021-03-26 14:29:59,729 INFO L129 PetriNetUnfolder]: 49/131 cut-off events. [2021-03-26 14:29:59,729 INFO L130 PetriNetUnfolder]: For 321/336 co-relation queries the response was YES. [2021-03-26 14:29:59,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 131 events. 49/131 cut-off events. For 321/336 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 565 event pairs, 0 based on Foata normal form. 3/114 useless extension candidates. Maximal degree in co-relation 466. Up to 50 conditions per place. [2021-03-26 14:29:59,730 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 14:29:59,734 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:59,734 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:59,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 14:29:59,735 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 438 flow [2021-03-26 14:29:59,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:59,735 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:59,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-26 14:29:59,735 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:59,736 INFO L82 PathProgramCache]: Analyzing trace with hash 576105064, now seen corresponding path program 1 times [2021-03-26 14:29:59,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:59,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196259731] [2021-03-26 14:29:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:59,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:59,757 INFO L142 QuantifierPusher]: treesize reduction 42, result has 35.4 percent of original size [2021-03-26 14:29:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:29:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:29:59,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:59,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196259731] [2021-03-26 14:29:59,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:29:59,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:29:59,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507886942] [2021-03-26 14:29:59,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:29:59,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:29:59,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:29:59,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:29:59,774 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2021-03-26 14:29:59,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 438 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:29:59,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2021-03-26 14:29:59,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:29:59,846 INFO L129 PetriNetUnfolder]: 61/138 cut-off events. [2021-03-26 14:29:59,846 INFO L130 PetriNetUnfolder]: For 459/468 co-relation queries the response was YES. [2021-03-26 14:29:59,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 138 events. 61/138 cut-off events. For 459/468 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 522 event pairs, 5 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 646. Up to 109 conditions per place. [2021-03-26 14:29:59,848 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 45 selfloop transitions, 5 changer transitions 1/56 dead transitions. [2021-03-26 14:29:59,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 536 flow [2021-03-26 14:29:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:29:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:29:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-03-26 14:29:59,849 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2021-03-26 14:29:59,849 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-03-26 14:29:59,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-03-26 14:29:59,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:29:59,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-03-26 14:29:59,849 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) [2021-03-26 14:29:59,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,850 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,850 INFO L185 Difference]: Start difference. First operand has 59 places, 57 transitions, 438 flow. Second operand 5 states and 78 transitions. [2021-03-26 14:29:59,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 536 flow [2021-03-26 14:29:59,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 475 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-03-26 14:29:59,853 INFO L241 Difference]: Finished difference. Result has 60 places, 55 transitions, 375 flow [2021-03-26 14:29:59,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2021-03-26 14:29:59,854 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 44 predicate places. [2021-03-26 14:29:59,854 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:29:59,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 375 flow [2021-03-26 14:29:59,854 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 375 flow [2021-03-26 14:29:59,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 375 flow [2021-03-26 14:29:59,863 INFO L129 PetriNetUnfolder]: 48/124 cut-off events. [2021-03-26 14:29:59,863 INFO L130 PetriNetUnfolder]: For 257/277 co-relation queries the response was YES. [2021-03-26 14:29:59,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 124 events. 48/124 cut-off events. For 257/277 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 503 event pairs, 0 based on Foata normal form. 4/112 useless extension candidates. Maximal degree in co-relation 398. Up to 50 conditions per place. [2021-03-26 14:29:59,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 14:29:59,868 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:29:59,868 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:29:59,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 14:29:59,869 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 375 flow [2021-03-26 14:29:59,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:29:59,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:29:59,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:29:59,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-26 14:29:59,869 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:29:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:29:59,870 INFO L82 PathProgramCache]: Analyzing trace with hash 95497611, now seen corresponding path program 1 times [2021-03-26 14:29:59,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:29:59,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854587533] [2021-03-26 14:29:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:29:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:29:59,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:29:59,909 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:29:59,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:29:59,914 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-26 14:29:59,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:29:59,939 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-26 14:29:59,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:29:59,960 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-26 14:29:59,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:29:59,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:29:59,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:29:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:29:59,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854587533] [2021-03-26 14:29:59,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775289490] [2021-03-26 14:29:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:00,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:00,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:00,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:00,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:00,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:00,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:00,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:00,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,021 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:00,022 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,023 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:00,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:00,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:00,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:00,038 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 14:30:00,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:00,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:00,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:00,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 14:30:00,046 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 14:30:00,048 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 14:30:00,049 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 14:30:00,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:00,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:00,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:00,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:00,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:00,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:00,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-03-26 14:30:00,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-03-26 14:30:00,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 633 [2021-03-26 14:30:00,168 INFO L142 QuantifierPusher]: treesize reduction 643, result has 22.4 percent of original size [2021-03-26 14:30:00,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,171 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:00,174 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:00,174 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,176 INFO L142 QuantifierPusher]: treesize reduction 180, result has 43.9 percent of original size [2021-03-26 14:30:00,177 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:00,177 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,179 INFO L142 QuantifierPusher]: treesize reduction 108, result has 40.7 percent of original size [2021-03-26 14:30:00,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:00,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:00,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:00,216 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:00,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:00,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:00,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:00,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:00,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,228 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:30:00,228 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:00,229 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,231 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 14:30:00,231 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:00,232 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,234 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-26 14:30:00,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:00,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:00,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:00,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:00,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:00,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,262 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:30:00,262 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:00,264 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,265 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:00,265 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:00,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:00,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:00,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:00,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849142827] [2021-03-26 14:30:00,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:00,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:00,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:00,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:00,291 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-26 14:30:00,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 375 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:00,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:00,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-26 14:30:00,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:00,472 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2021-03-26 14:30:00,754 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2021-03-26 14:30:01,115 INFO L129 PetriNetUnfolder]: 67/170 cut-off events. [2021-03-26 14:30:01,115 INFO L130 PetriNetUnfolder]: For 490/516 co-relation queries the response was YES. [2021-03-26 14:30:01,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 170 events. 67/170 cut-off events. For 490/516 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 768 event pairs, 4 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 693. Up to 85 conditions per place. [2021-03-26 14:30:01,117 INFO L132 encePairwiseOnDemand]: 25/33 looper letters, 57 selfloop transitions, 17 changer transitions 3/81 dead transitions. [2021-03-26 14:30:01,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 81 transitions, 767 flow [2021-03-26 14:30:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 143 transitions. [2021-03-26 14:30:01,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2021-03-26 14:30:01,118 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 143 transitions. [2021-03-26 14:30:01,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 143 transitions. [2021-03-26 14:30:01,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:01,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 143 transitions. [2021-03-26 14:30:01,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.3) internal successors, (143), 10 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) [2021-03-26 14:30:01,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:01,120 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:01,120 INFO L185 Difference]: Start difference. First operand has 56 places, 55 transitions, 375 flow. Second operand 10 states and 143 transitions. [2021-03-26 14:30:01,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 81 transitions, 767 flow [2021-03-26 14:30:01,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 81 transitions, 757 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:01,124 INFO L241 Difference]: Finished difference. Result has 67 places, 63 transitions, 492 flow [2021-03-26 14:30:01,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=492, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2021-03-26 14:30:01,124 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 51 predicate places. [2021-03-26 14:30:01,124 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:01,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 492 flow [2021-03-26 14:30:01,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 492 flow [2021-03-26 14:30:01,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 63 transitions, 492 flow [2021-03-26 14:30:01,139 INFO L129 PetriNetUnfolder]: 58/153 cut-off events. [2021-03-26 14:30:01,139 INFO L130 PetriNetUnfolder]: For 1134/1144 co-relation queries the response was YES. [2021-03-26 14:30:01,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 153 events. 58/153 cut-off events. For 1134/1144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 692 event pairs, 2 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 652. Up to 69 conditions per place. [2021-03-26 14:30:01,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 14:30:01,254 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-03-26 14:30:01,566 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2021-03-26 14:30:01,738 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-03-26 14:30:01,783 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:01,783 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:30:01,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 659 [2021-03-26 14:30:01,784 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 504 flow [2021-03-26 14:30:01,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:01,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:01,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:01,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-26 14:30:02,000 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:02,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:02,000 INFO L82 PathProgramCache]: Analyzing trace with hash -939822850, now seen corresponding path program 1 times [2021-03-26 14:30:02,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:02,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319163250] [2021-03-26 14:30:02,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:02,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:02,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:02,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:02,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319163250] [2021-03-26 14:30:02,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785067390] [2021-03-26 14:30:02,049 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 [2021-03-26 14:30:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:02,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 14:30:02,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:02,097 INFO L142 QuantifierPusher]: treesize reduction 53, result has 39.8 percent of original size [2021-03-26 14:30:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:02,117 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 14:30:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:02,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:02,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:02,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:02,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:02,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:02,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:02,124 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 14:30:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,129 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:02,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:02,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 14:30:02,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618229068] [2021-03-26 14:30:02,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:02,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:02,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2021-03-26 14:30:02,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:02,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:02,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2021-03-26 14:30:02,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:02,238 INFO L129 PetriNetUnfolder]: 68/169 cut-off events. [2021-03-26 14:30:02,238 INFO L130 PetriNetUnfolder]: For 1354/1363 co-relation queries the response was YES. [2021-03-26 14:30:02,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 169 events. 68/169 cut-off events. For 1354/1363 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 753 event pairs, 6 based on Foata normal form. 8/168 useless extension candidates. Maximal degree in co-relation 855. Up to 73 conditions per place. [2021-03-26 14:30:02,240 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 60 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2021-03-26 14:30:02,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 75 transitions, 806 flow [2021-03-26 14:30:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-26 14:30:02,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045 [2021-03-26 14:30:02,241 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-26 14:30:02,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-26 14:30:02,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:02,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-26 14:30:02,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 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) [2021-03-26 14:30:02,242 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) [2021-03-26 14:30:02,242 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) [2021-03-26 14:30:02,243 INFO L185 Difference]: Start difference. First operand has 65 places, 63 transitions, 504 flow. Second operand 6 states and 103 transitions. [2021-03-26 14:30:02,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 75 transitions, 806 flow [2021-03-26 14:30:02,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 75 transitions, 748 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:02,248 INFO L241 Difference]: Finished difference. Result has 68 places, 64 transitions, 501 flow [2021-03-26 14:30:02,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2021-03-26 14:30:02,249 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 52 predicate places. [2021-03-26 14:30:02,249 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:02,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 501 flow [2021-03-26 14:30:02,249 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 501 flow [2021-03-26 14:30:02,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 501 flow [2021-03-26 14:30:02,275 INFO L129 PetriNetUnfolder]: 53/152 cut-off events. [2021-03-26 14:30:02,275 INFO L130 PetriNetUnfolder]: For 979/983 co-relation queries the response was YES. [2021-03-26 14:30:02,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 152 events. 53/152 cut-off events. For 979/983 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 737 event pairs, 2 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 588. Up to 63 conditions per place. [2021-03-26 14:30:02,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 14:30:02,530 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:30:02,530 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:02,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 281 [2021-03-26 14:30:02,530 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 520 flow [2021-03-26 14:30:02,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:02,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:02,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:02,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-26 14:30:02,731 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:02,732 INFO L82 PathProgramCache]: Analyzing trace with hash -625795919, now seen corresponding path program 1 times [2021-03-26 14:30:02,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:02,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124192866] [2021-03-26 14:30:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:02,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,765 INFO L142 QuantifierPusher]: treesize reduction 46, result has 23.3 percent of original size [2021-03-26 14:30:02,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:02,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:02,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:02,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124192866] [2021-03-26 14:30:02,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594392962] [2021-03-26 14:30:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 14:30:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:02,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:30:02,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:02,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:02,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:02,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:02,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,841 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:02,842 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:02,843 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:02,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:02,864 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:30:02,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:02,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:02,867 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 14:30:02,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:02,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:02,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-26 14:30:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:02,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-26 14:30:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-26 14:30:02,927 INFO L142 QuantifierPusher]: treesize reduction 57, result has 37.4 percent of original size [2021-03-26 14:30:02,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:02,933 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:02,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:02,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:02,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 14:30:02,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809903223] [2021-03-26 14:30:02,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 14:30:02,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:02,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 14:30:02,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 14:30:02,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 36 [2021-03-26 14:30:02,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 520 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:02,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:02,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 36 [2021-03-26 14:30:02,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:03,236 INFO L129 PetriNetUnfolder]: 64/161 cut-off events. [2021-03-26 14:30:03,237 INFO L130 PetriNetUnfolder]: For 1597/1630 co-relation queries the response was YES. [2021-03-26 14:30:03,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 161 events. 64/161 cut-off events. For 1597/1630 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 708 event pairs, 4 based on Foata normal form. 5/159 useless extension candidates. Maximal degree in co-relation 806. Up to 77 conditions per place. [2021-03-26 14:30:03,238 INFO L132 encePairwiseOnDemand]: 30/36 looper letters, 46 selfloop transitions, 15 changer transitions 0/72 dead transitions. [2021-03-26 14:30:03,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 72 transitions, 782 flow [2021-03-26 14:30:03,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2021-03-26 14:30:03,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2021-03-26 14:30:03,240 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 116 transitions. [2021-03-26 14:30:03,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 116 transitions. [2021-03-26 14:30:03,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:03,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 116 transitions. [2021-03-26 14:30:03,240 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) [2021-03-26 14:30:03,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:03,241 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:03,241 INFO L185 Difference]: Start difference. First operand has 68 places, 64 transitions, 520 flow. Second operand 6 states and 116 transitions. [2021-03-26 14:30:03,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 72 transitions, 782 flow [2021-03-26 14:30:03,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 72 transitions, 675 flow, removed 46 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:03,246 INFO L241 Difference]: Finished difference. Result has 67 places, 63 transitions, 486 flow [2021-03-26 14:30:03,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2021-03-26 14:30:03,247 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 51 predicate places. [2021-03-26 14:30:03,247 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:03,247 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 486 flow [2021-03-26 14:30:03,247 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 486 flow [2021-03-26 14:30:03,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 486 flow [2021-03-26 14:30:03,259 INFO L129 PetriNetUnfolder]: 54/149 cut-off events. [2021-03-26 14:30:03,259 INFO L130 PetriNetUnfolder]: For 606/611 co-relation queries the response was YES. [2021-03-26 14:30:03,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 149 events. 54/149 cut-off events. For 606/611 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 704 event pairs, 2 based on Foata normal form. 4/145 useless extension candidates. Maximal degree in co-relation 563. Up to 70 conditions per place. [2021-03-26 14:30:03,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 14:30:03,266 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:03,266 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:03,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 14:30:03,267 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 486 flow [2021-03-26 14:30:03,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:03,267 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:03,267 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:03,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:03,485 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:03,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1649086271, now seen corresponding path program 1 times [2021-03-26 14:30:03,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:03,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908713115] [2021-03-26 14:30:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:03,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,542 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:30:03,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:03,548 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-26 14:30:03,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:03,572 INFO L142 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-03-26 14:30:03,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:03,590 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:03,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:03,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:03,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908713115] [2021-03-26 14:30:03,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624301408] [2021-03-26 14:30:03,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:30:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:03,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:03,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:03,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:03,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,680 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,681 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,681 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:03,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:03,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:03,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:03,699 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 14:30:03,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:03,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:03,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 14:30:03,704 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 14:30:03,705 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 14:30:03,706 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 14:30:03,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:03,777 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-26 14:30:03,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:03,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:03,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:03,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:03,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:30:03,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,786 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:03,787 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,788 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,788 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:03,788 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,790 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:03,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,793 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,793 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,794 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 14:30:03,795 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:03,796 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:03,796 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:03,797 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,798 INFO L142 QuantifierPusher]: treesize reduction 143, result has 26.7 percent of original size [2021-03-26 14:30:03,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:03,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:03,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:03,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:03,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 14:30:03,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-26 14:30:03,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:30:03,842 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-26 14:30:03,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,845 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:03,846 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:03,851 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,852 INFO L142 QuantifierPusher]: treesize reduction 216, result has 17.2 percent of original size [2021-03-26 14:30:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:03,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:03,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:03,905 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:03,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:03,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:03,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:03,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:03,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:03,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,917 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:03,917 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,918 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,919 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:03,920 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:03,920 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:03,921 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:30:03,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:03,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:03,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:03,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:03,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390422233] [2021-03-26 14:30:03,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:03,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:03,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:03,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-26 14:30:03,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 486 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:03,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:03,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-26 14:30:03,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:04,309 INFO L129 PetriNetUnfolder]: 68/169 cut-off events. [2021-03-26 14:30:04,310 INFO L130 PetriNetUnfolder]: For 945/951 co-relation queries the response was YES. [2021-03-26 14:30:04,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 169 events. 68/169 cut-off events. For 945/951 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 755 event pairs, 4 based on Foata normal form. 5/166 useless extension candidates. Maximal degree in co-relation 800. Up to 91 conditions per place. [2021-03-26 14:30:04,311 INFO L132 encePairwiseOnDemand]: 27/36 looper letters, 57 selfloop transitions, 16 changer transitions 2/79 dead transitions. [2021-03-26 14:30:04,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 802 flow [2021-03-26 14:30:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:30:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:30:04,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2021-03-26 14:30:04,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40625 [2021-03-26 14:30:04,313 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2021-03-26 14:30:04,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2021-03-26 14:30:04,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:04,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2021-03-26 14:30:04,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:04,314 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) [2021-03-26 14:30:04,314 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) [2021-03-26 14:30:04,314 INFO L185 Difference]: Start difference. First operand has 67 places, 63 transitions, 486 flow. Second operand 8 states and 117 transitions. [2021-03-26 14:30:04,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 802 flow [2021-03-26 14:30:04,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 79 transitions, 787 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:04,319 INFO L241 Difference]: Finished difference. Result has 75 places, 65 transitions, 539 flow [2021-03-26 14:30:04,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=539, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2021-03-26 14:30:04,319 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 59 predicate places. [2021-03-26 14:30:04,319 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:04,319 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 65 transitions, 539 flow [2021-03-26 14:30:04,319 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 65 transitions, 539 flow [2021-03-26 14:30:04,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 65 transitions, 539 flow [2021-03-26 14:30:04,331 INFO L129 PetriNetUnfolder]: 53/151 cut-off events. [2021-03-26 14:30:04,331 INFO L130 PetriNetUnfolder]: For 764/768 co-relation queries the response was YES. [2021-03-26 14:30:04,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 151 events. 53/151 cut-off events. For 764/768 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 721 event pairs, 1 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 607. Up to 69 conditions per place. [2021-03-26 14:30:04,332 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 14:30:04,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:04,512 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:04,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 193 [2021-03-26 14:30:04,512 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 547 flow [2021-03-26 14:30:04,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:04,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:04,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:04,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:04,730 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:04,731 INFO L82 PathProgramCache]: Analyzing trace with hash 388901876, now seen corresponding path program 1 times [2021-03-26 14:30:04,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:04,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994191595] [2021-03-26 14:30:04,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:04,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:30:04,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:04,763 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.6 percent of original size [2021-03-26 14:30:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:30:04,841 INFO L142 QuantifierPusher]: treesize reduction 1059, result has 22.2 percent of original size [2021-03-26 14:30:04,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-03-26 14:30:04,906 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:04,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:04,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994191595] [2021-03-26 14:30:04,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733022042] [2021-03-26 14:30:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:04,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 14:30:04,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:04,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:04,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:04,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:04,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:04,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,995 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:04,997 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:04,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:04,997 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:05,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:05,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:05,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:05,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:30:05,022 INFO L142 QuantifierPusher]: treesize reduction 107, result has 46.8 percent of original size [2021-03-26 14:30:05,023 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-26 14:30:05,023 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-26 14:30:05,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 14:30:05,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:05,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:05,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:30:05,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:05,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,068 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:05,069 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:05,069 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,070 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:05,070 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:05,073 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:05,077 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:05,077 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,078 INFO L142 QuantifierPusher]: treesize reduction 57, result has 55.8 percent of original size [2021-03-26 14:30:05,078 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:05,080 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,081 INFO L142 QuantifierPusher]: treesize reduction 45, result has 49.4 percent of original size [2021-03-26 14:30:05,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:05,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:05,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:05,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:05,115 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-26 14:30:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:05,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:30:05,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 14:30:05,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 14:30:05,135 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-26 14:30:05,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,137 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:05,138 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:05,138 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,140 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-26 14:30:05,141 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:05,143 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,144 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-26 14:30:05,145 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:05,145 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,146 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-26 14:30:05,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:05,152 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 14:30:05,152 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:30:05,153 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:30:05,153 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 14:30:05,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:05,179 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:05,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:05,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:05,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:05,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:05,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,189 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:30:05,189 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:05,190 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,192 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:30:05,192 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:05,193 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:05,195 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:30:05,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:05,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:05,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:05,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:05,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838767342] [2021-03-26 14:30:05,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:05,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:05,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:05,239 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2021-03-26 14:30:05,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 547 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:05,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:05,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2021-03-26 14:30:05,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:05,597 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2021-03-26 14:30:05,900 INFO L129 PetriNetUnfolder]: 73/194 cut-off events. [2021-03-26 14:30:05,901 INFO L130 PetriNetUnfolder]: For 1408/1414 co-relation queries the response was YES. [2021-03-26 14:30:05,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 194 events. 73/194 cut-off events. For 1408/1414 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 936 event pairs, 3 based on Foata normal form. 4/190 useless extension candidates. Maximal degree in co-relation 1000. Up to 123 conditions per place. [2021-03-26 14:30:05,903 INFO L132 encePairwiseOnDemand]: 29/37 looper letters, 61 selfloop transitions, 23 changer transitions 1/89 dead transitions. [2021-03-26 14:30:05,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 1027 flow [2021-03-26 14:30:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:30:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:30:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 163 transitions. [2021-03-26 14:30:05,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36711711711711714 [2021-03-26 14:30:05,904 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 163 transitions. [2021-03-26 14:30:05,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 163 transitions. [2021-03-26 14:30:05,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:05,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 163 transitions. [2021-03-26 14:30:05,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.583333333333334) internal successors, (163), 12 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:05,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 37.0) internal successors, (481), 13 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:05,906 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 37.0) internal successors, (481), 13 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:05,906 INFO L185 Difference]: Start difference. First operand has 74 places, 65 transitions, 547 flow. Second operand 12 states and 163 transitions. [2021-03-26 14:30:05,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 1027 flow [2021-03-26 14:30:05,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 949 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:05,912 INFO L241 Difference]: Finished difference. Result has 86 places, 80 transitions, 790 flow [2021-03-26 14:30:05,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=790, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2021-03-26 14:30:05,912 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-26 14:30:05,913 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:05,913 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 790 flow [2021-03-26 14:30:05,913 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 790 flow [2021-03-26 14:30:05,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 790 flow [2021-03-26 14:30:05,927 INFO L129 PetriNetUnfolder]: 62/177 cut-off events. [2021-03-26 14:30:05,927 INFO L130 PetriNetUnfolder]: For 1318/1332 co-relation queries the response was YES. [2021-03-26 14:30:05,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 177 events. 62/177 cut-off events. For 1318/1332 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 893 event pairs, 0 based on Foata normal form. 3/172 useless extension candidates. Maximal degree in co-relation 837. Up to 82 conditions per place. [2021-03-26 14:30:05,929 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 14:30:06,323 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:06,323 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:06,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 410 [2021-03-26 14:30:06,324 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 799 flow [2021-03-26 14:30:06,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:06,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:06,324 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:06,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:06,536 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:06,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2080400369, now seen corresponding path program 1 times [2021-03-26 14:30:06,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:06,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231936513] [2021-03-26 14:30:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:06,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:06,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:06,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:06,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231936513] [2021-03-26 14:30:06,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:06,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:06,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629638869] [2021-03-26 14:30:06,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:06,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:06,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:06,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2021-03-26 14:30:06,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 799 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:06,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2021-03-26 14:30:06,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:06,648 INFO L129 PetriNetUnfolder]: 68/181 cut-off events. [2021-03-26 14:30:06,648 INFO L130 PetriNetUnfolder]: For 1590/1637 co-relation queries the response was YES. [2021-03-26 14:30:06,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 181 events. 68/181 cut-off events. For 1590/1637 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 867 event pairs, 3 based on Foata normal form. 4/177 useless extension candidates. Maximal degree in co-relation 976. Up to 84 conditions per place. [2021-03-26 14:30:06,650 INFO L132 encePairwiseOnDemand]: 33/40 looper letters, 58 selfloop transitions, 11 changer transitions 1/83 dead transitions. [2021-03-26 14:30:06,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 989 flow [2021-03-26 14:30:06,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2021-03-26 14:30:06,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51 [2021-03-26 14:30:06,652 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 102 transitions. [2021-03-26 14:30:06,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 102 transitions. [2021-03-26 14:30:06,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:06,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 102 transitions. [2021-03-26 14:30:06,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 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) [2021-03-26 14:30:06,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,660 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,660 INFO L185 Difference]: Start difference. First operand has 84 places, 79 transitions, 799 flow. Second operand 5 states and 102 transitions. [2021-03-26 14:30:06,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 989 flow [2021-03-26 14:30:06,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 83 transitions, 861 flow, removed 64 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:06,669 INFO L241 Difference]: Finished difference. Result has 86 places, 77 transitions, 678 flow [2021-03-26 14:30:06,669 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=678, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2021-03-26 14:30:06,669 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-26 14:30:06,669 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:06,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 77 transitions, 678 flow [2021-03-26 14:30:06,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 77 transitions, 678 flow [2021-03-26 14:30:06,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 77 transitions, 678 flow [2021-03-26 14:30:06,685 INFO L129 PetriNetUnfolder]: 61/174 cut-off events. [2021-03-26 14:30:06,685 INFO L130 PetriNetUnfolder]: For 1302/1320 co-relation queries the response was YES. [2021-03-26 14:30:06,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 174 events. 61/174 cut-off events. For 1302/1320 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 886 event pairs, 0 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 768. Up to 74 conditions per place. [2021-03-26 14:30:06,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 14:30:06,899 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:06,899 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:06,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-26 14:30:06,900 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 77 transitions, 685 flow [2021-03-26 14:30:06,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:06,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:06,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-26 14:30:06,900 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2037597256, now seen corresponding path program 1 times [2021-03-26 14:30:06,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:06,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640912716] [2021-03-26 14:30:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:06,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:06,919 INFO L142 QuantifierPusher]: treesize reduction 111, result has 15.3 percent of original size [2021-03-26 14:30:06,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:30:06,927 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:30:06,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:06,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:06,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:06,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640912716] [2021-03-26 14:30:06,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:06,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:30:06,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082639407] [2021-03-26 14:30:06,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:30:06,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:30:06,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:30:06,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2021-03-26 14:30:06,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 77 transitions, 685 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:06,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2021-03-26 14:30:06,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:06,990 INFO L129 PetriNetUnfolder]: 67/179 cut-off events. [2021-03-26 14:30:06,990 INFO L130 PetriNetUnfolder]: For 1541/1569 co-relation queries the response was YES. [2021-03-26 14:30:06,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 179 events. 67/179 cut-off events. For 1541/1569 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 844 event pairs, 4 based on Foata normal form. 5/176 useless extension candidates. Maximal degree in co-relation 902. Up to 95 conditions per place. [2021-03-26 14:30:06,992 INFO L132 encePairwiseOnDemand]: 33/41 looper letters, 53 selfloop transitions, 11 changer transitions 1/78 dead transitions. [2021-03-26 14:30:06,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 78 transitions, 823 flow [2021-03-26 14:30:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:30:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:30:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-03-26 14:30:06,993 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-26 14:30:06,993 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 82 transitions. [2021-03-26 14:30:06,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 82 transitions. [2021-03-26 14:30:06,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:06,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 82 transitions. [2021-03-26 14:30:06,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,994 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:06,994 INFO L185 Difference]: Start difference. First operand has 85 places, 77 transitions, 685 flow. Second operand 4 states and 82 transitions. [2021-03-26 14:30:06,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 78 transitions, 823 flow [2021-03-26 14:30:06,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 807 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:07,001 INFO L241 Difference]: Finished difference. Result has 86 places, 75 transitions, 662 flow [2021-03-26 14:30:07,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=662, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2021-03-26 14:30:07,001 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-26 14:30:07,001 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:07,001 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 75 transitions, 662 flow [2021-03-26 14:30:07,001 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 75 transitions, 662 flow [2021-03-26 14:30:07,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 75 transitions, 662 flow [2021-03-26 14:30:07,015 INFO L129 PetriNetUnfolder]: 60/171 cut-off events. [2021-03-26 14:30:07,015 INFO L130 PetriNetUnfolder]: For 1282/1299 co-relation queries the response was YES. [2021-03-26 14:30:07,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 171 events. 60/171 cut-off events. For 1282/1299 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 850 event pairs, 1 based on Foata normal form. 3/166 useless extension candidates. Maximal degree in co-relation 769. Up to 73 conditions per place. [2021-03-26 14:30:07,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 14:30:07,019 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:07,019 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:07,019 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 14:30:07,019 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 662 flow [2021-03-26 14:30:07,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:07,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:07,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-26 14:30:07,020 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:07,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:07,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1607206679, now seen corresponding path program 1 times [2021-03-26 14:30:07,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:07,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729543485] [2021-03-26 14:30:07,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:07,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:07,046 INFO L142 QuantifierPusher]: treesize reduction 103, result has 5.5 percent of original size [2021-03-26 14:30:07,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:07,052 INFO L142 QuantifierPusher]: treesize reduction 228, result has 24.5 percent of original size [2021-03-26 14:30:07,053 INFO L147 QuantifierPusher]: treesize reduction 7, result has 90.5 percent of original size 67 [2021-03-26 14:30:07,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-26 14:30:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:07,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:07,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729543485] [2021-03-26 14:30:07,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:07,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:07,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399596280] [2021-03-26 14:30:07,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:07,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:07,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:07,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:07,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2021-03-26 14:30:07,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:07,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2021-03-26 14:30:07,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:07,471 INFO L129 PetriNetUnfolder]: 76/191 cut-off events. [2021-03-26 14:30:07,471 INFO L130 PetriNetUnfolder]: For 1730/1736 co-relation queries the response was YES. [2021-03-26 14:30:07,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 191 events. 76/191 cut-off events. For 1730/1736 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 888 event pairs, 5 based on Foata normal form. 4/185 useless extension candidates. Maximal degree in co-relation 1049. Up to 125 conditions per place. [2021-03-26 14:30:07,473 INFO L132 encePairwiseOnDemand]: 31/41 looper letters, 56 selfloop transitions, 27 changer transitions 1/88 dead transitions. [2021-03-26 14:30:07,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 88 transitions, 973 flow [2021-03-26 14:30:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:30:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:30:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2021-03-26 14:30:07,474 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3567073170731707 [2021-03-26 14:30:07,474 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2021-03-26 14:30:07,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2021-03-26 14:30:07,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:07,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2021-03-26 14:30:07,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,475 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,475 INFO L185 Difference]: Start difference. First operand has 85 places, 75 transitions, 662 flow. Second operand 8 states and 117 transitions. [2021-03-26 14:30:07,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 88 transitions, 973 flow [2021-03-26 14:30:07,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 88 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:07,483 INFO L241 Difference]: Finished difference. Result has 93 places, 82 transitions, 807 flow [2021-03-26 14:30:07,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=807, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2021-03-26 14:30:07,483 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 77 predicate places. [2021-03-26 14:30:07,483 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:07,483 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 807 flow [2021-03-26 14:30:07,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 807 flow [2021-03-26 14:30:07,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 82 transitions, 807 flow [2021-03-26 14:30:07,499 INFO L129 PetriNetUnfolder]: 65/177 cut-off events. [2021-03-26 14:30:07,499 INFO L130 PetriNetUnfolder]: For 1597/1611 co-relation queries the response was YES. [2021-03-26 14:30:07,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 177 events. 65/177 cut-off events. For 1597/1611 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 875 event pairs, 1 based on Foata normal form. 3/170 useless extension candidates. Maximal degree in co-relation 900. Up to 80 conditions per place. [2021-03-26 14:30:07,501 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 14:30:07,503 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:07,503 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:07,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 14:30:07,504 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 807 flow [2021-03-26 14:30:07,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:07,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:07,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-26 14:30:07,504 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:07,505 INFO L82 PathProgramCache]: Analyzing trace with hash -82732258, now seen corresponding path program 2 times [2021-03-26 14:30:07,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:07,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130392112] [2021-03-26 14:30:07,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:07,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:07,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:07,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size [2021-03-26 14:30:07,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:07,534 INFO L142 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size [2021-03-26 14:30:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:07,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:07,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130392112] [2021-03-26 14:30:07,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:07,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:07,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57292081] [2021-03-26 14:30:07,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:07,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:07,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:07,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:07,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2021-03-26 14:30:07,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 807 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:07,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2021-03-26 14:30:07,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:07,640 INFO L129 PetriNetUnfolder]: 80/200 cut-off events. [2021-03-26 14:30:07,641 INFO L130 PetriNetUnfolder]: For 2281/2281 co-relation queries the response was YES. [2021-03-26 14:30:07,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 200 events. 80/200 cut-off events. For 2281/2281 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 969 event pairs, 4 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 1218. Up to 93 conditions per place. [2021-03-26 14:30:07,643 INFO L132 encePairwiseOnDemand]: 35/41 looper letters, 76 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2021-03-26 14:30:07,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 92 transitions, 1113 flow [2021-03-26 14:30:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:07,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-03-26 14:30:07,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43414634146341463 [2021-03-26 14:30:07,644 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-03-26 14:30:07,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-03-26 14:30:07,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:07,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-03-26 14:30:07,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,646 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,646 INFO L185 Difference]: Start difference. First operand has 91 places, 82 transitions, 807 flow. Second operand 5 states and 89 transitions. [2021-03-26 14:30:07,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 92 transitions, 1113 flow [2021-03-26 14:30:07,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 1031 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:07,656 INFO L241 Difference]: Finished difference. Result has 92 places, 84 transitions, 784 flow [2021-03-26 14:30:07,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=784, PETRI_PLACES=92, PETRI_TRANSITIONS=84} [2021-03-26 14:30:07,657 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 76 predicate places. [2021-03-26 14:30:07,657 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:07,657 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 784 flow [2021-03-26 14:30:07,657 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 784 flow [2021-03-26 14:30:07,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 784 flow [2021-03-26 14:30:07,674 INFO L129 PetriNetUnfolder]: 74/192 cut-off events. [2021-03-26 14:30:07,674 INFO L130 PetriNetUnfolder]: For 2398/2403 co-relation queries the response was YES. [2021-03-26 14:30:07,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 192 events. 74/192 cut-off events. For 2398/2403 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 948 event pairs, 1 based on Foata normal form. 1/184 useless extension candidates. Maximal degree in co-relation 1019. Up to 87 conditions per place. [2021-03-26 14:30:07,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:07,678 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:07,678 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:07,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 14:30:07,679 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 84 transitions, 784 flow [2021-03-26 14:30:07,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:07,679 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:07,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-26 14:30:07,679 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash 158533800, now seen corresponding path program 1 times [2021-03-26 14:30:07,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:07,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672562255] [2021-03-26 14:30:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:07,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:07,706 INFO L142 QuantifierPusher]: treesize reduction 133, result has 14.2 percent of original size [2021-03-26 14:30:07,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:07,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:07,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:07,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:07,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672562255] [2021-03-26 14:30:07,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:07,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:07,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279682605] [2021-03-26 14:30:07,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:07,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:07,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:07,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:07,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2021-03-26 14:30:07,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 84 transitions, 784 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:07,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:07,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2021-03-26 14:30:07,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:07,802 INFO L129 PetriNetUnfolder]: 78/199 cut-off events. [2021-03-26 14:30:07,802 INFO L130 PetriNetUnfolder]: For 2643/2649 co-relation queries the response was YES. [2021-03-26 14:30:07,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 199 events. 78/199 cut-off events. For 2643/2649 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 929 event pairs, 5 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 1209. Up to 138 conditions per place. [2021-03-26 14:30:07,804 INFO L132 encePairwiseOnDemand]: 35/41 looper letters, 71 selfloop transitions, 10 changer transitions 0/86 dead transitions. [2021-03-26 14:30:07,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 86 transitions, 988 flow [2021-03-26 14:30:07,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:07,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-26 14:30:07,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4186991869918699 [2021-03-26 14:30:07,805 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-26 14:30:07,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-26 14:30:07,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:07,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-26 14:30:07,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 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) [2021-03-26 14:30:07,806 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) [2021-03-26 14:30:07,806 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) [2021-03-26 14:30:07,807 INFO L185 Difference]: Start difference. First operand has 92 places, 84 transitions, 784 flow. Second operand 6 states and 103 transitions. [2021-03-26 14:30:07,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 86 transitions, 988 flow [2021-03-26 14:30:07,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 86 transitions, 953 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:07,816 INFO L241 Difference]: Finished difference. Result has 95 places, 79 transitions, 769 flow [2021-03-26 14:30:07,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=769, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2021-03-26 14:30:07,817 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 79 predicate places. [2021-03-26 14:30:07,817 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:07,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 79 transitions, 769 flow [2021-03-26 14:30:07,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 79 transitions, 769 flow [2021-03-26 14:30:07,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 79 transitions, 769 flow [2021-03-26 14:30:07,832 INFO L129 PetriNetUnfolder]: 66/185 cut-off events. [2021-03-26 14:30:07,833 INFO L130 PetriNetUnfolder]: For 2114/2128 co-relation queries the response was YES. [2021-03-26 14:30:07,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 185 events. 66/185 cut-off events. For 2114/2128 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 925 event pairs, 3 based on Foata normal form. 3/177 useless extension candidates. Maximal degree in co-relation 951. Up to 81 conditions per place. [2021-03-26 14:30:07,834 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:08,069 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-03-26 14:30:08,110 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:08,110 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:08,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 294 [2021-03-26 14:30:08,111 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 773 flow [2021-03-26 14:30:08,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:08,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:08,111 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:08,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-26 14:30:08,111 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:08,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:08,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1691381374, now seen corresponding path program 2 times [2021-03-26 14:30:08,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:08,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322681624] [2021-03-26 14:30:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:08,150 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-26 14:30:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:08,159 INFO L142 QuantifierPusher]: treesize reduction 201, result has 17.3 percent of original size [2021-03-26 14:30:08,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:30:08,180 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 14:30:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:08,194 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:08,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:08,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:08,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322681624] [2021-03-26 14:30:08,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383701723] [2021-03-26 14:30:08,214 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 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 [2021-03-26 14:30:08,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:08,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:08,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:08,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:08,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:08,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:08,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:08,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:08,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:08,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:08,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:08,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,262 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:08,263 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,264 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:08,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:08,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:30:08,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:08,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:30:08,287 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 14:30:08,288 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:30:08,289 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:30:08,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:30:08,447 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-26 14:30:08,449 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-26 14:30:08,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:08,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 14:30:08,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 14:30:08,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:30:08,455 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-26 14:30:08,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,456 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:08,461 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:08,462 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,463 INFO L142 QuantifierPusher]: treesize reduction 240, result has 36.7 percent of original size [2021-03-26 14:30:08,465 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:08,466 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,467 INFO L142 QuantifierPusher]: treesize reduction 81, result has 61.2 percent of original size [2021-03-26 14:30:08,468 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:08,468 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,469 INFO L142 QuantifierPusher]: treesize reduction 127, result has 27.0 percent of original size [2021-03-26 14:30:08,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:08,473 INFO L147 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size 29 [2021-03-26 14:30:08,474 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 14:30:08,474 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 14:30:08,475 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-03-26 14:30:08,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:08,510 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:30:08,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:08,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:08,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:08,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:08,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:30:08,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,518 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:30:08,518 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:08,519 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,521 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:30:08,521 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:08,522 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,523 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:30:08,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:08,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:08,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:08,548 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:08,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:08,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:08,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:08,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,556 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:08,556 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:08,556 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,557 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:08,558 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:08,558 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:08,559 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 14:30:08,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:08,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:08,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:08,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:08,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120517268] [2021-03-26 14:30:08,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:08,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:08,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:08,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:08,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2021-03-26 14:30:08,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 773 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:08,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:08,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2021-03-26 14:30:08,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:09,019 INFO L129 PetriNetUnfolder]: 80/214 cut-off events. [2021-03-26 14:30:09,019 INFO L130 PetriNetUnfolder]: For 2833/2837 co-relation queries the response was YES. [2021-03-26 14:30:09,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 214 events. 80/214 cut-off events. For 2833/2837 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1070 event pairs, 4 based on Foata normal form. 4/206 useless extension candidates. Maximal degree in co-relation 1344. Up to 135 conditions per place. [2021-03-26 14:30:09,021 INFO L132 encePairwiseOnDemand]: 32/42 looper letters, 62 selfloop transitions, 24 changer transitions 3/93 dead transitions. [2021-03-26 14:30:09,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 93 transitions, 1210 flow [2021-03-26 14:30:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:30:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:30:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 168 transitions. [2021-03-26 14:30:09,022 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2021-03-26 14:30:09,022 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 168 transitions. [2021-03-26 14:30:09,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 168 transitions. [2021-03-26 14:30:09,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:09,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 168 transitions. [2021-03-26 14:30:09,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.0) internal successors, (168), 12 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) [2021-03-26 14:30:09,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 42.0) internal successors, (546), 13 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:09,024 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 42.0) internal successors, (546), 13 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:09,024 INFO L185 Difference]: Start difference. First operand has 95 places, 79 transitions, 773 flow. Second operand 12 states and 168 transitions. [2021-03-26 14:30:09,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 93 transitions, 1210 flow [2021-03-26 14:30:09,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 93 transitions, 1169 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:09,035 INFO L241 Difference]: Finished difference. Result has 106 places, 81 transitions, 886 flow [2021-03-26 14:30:09,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=886, PETRI_PLACES=106, PETRI_TRANSITIONS=81} [2021-03-26 14:30:09,035 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 90 predicate places. [2021-03-26 14:30:09,035 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:09,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 81 transitions, 886 flow [2021-03-26 14:30:09,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 81 transitions, 886 flow [2021-03-26 14:30:09,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 81 transitions, 886 flow [2021-03-26 14:30:09,053 INFO L129 PetriNetUnfolder]: 77/196 cut-off events. [2021-03-26 14:30:09,053 INFO L130 PetriNetUnfolder]: For 3937/3956 co-relation queries the response was YES. [2021-03-26 14:30:09,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 196 events. 77/196 cut-off events. For 3937/3956 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 989 event pairs, 4 based on Foata normal form. 1/185 useless extension candidates. Maximal degree in co-relation 1286. Up to 98 conditions per place. [2021-03-26 14:30:09,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 14:30:09,287 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:09,287 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:09,287 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-26 14:30:09,288 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 81 transitions, 898 flow [2021-03-26 14:30:09,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:09,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:09,288 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:09,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-03-26 14:30:09,510 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:09,510 INFO L82 PathProgramCache]: Analyzing trace with hash -101729559, now seen corresponding path program 3 times [2021-03-26 14:30:09,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:09,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818607971] [2021-03-26 14:30:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,539 INFO L142 QuantifierPusher]: treesize reduction 36, result has 62.1 percent of original size [2021-03-26 14:30:09,540 INFO L147 QuantifierPusher]: treesize reduction 4, result has 93.2 percent of original size 55 [2021-03-26 14:30:09,600 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 14:30:09,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:09,618 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:09,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:09,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:09,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818607971] [2021-03-26 14:30:09,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925403338] [2021-03-26 14:30:09,635 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 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 [2021-03-26 14:30:09,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:30:09,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:09,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:30:09,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:09,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:09,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:09,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:09,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:09,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:09,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:09,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,674 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:09,674 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:09,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:09,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:30:09,681 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-26 14:30:09,682 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-26 14:30:09,683 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-26 14:30:09,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:30:09,720 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-03-26 14:30:09,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:09,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:30:09,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 14:30:09,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 14:30:09,728 INFO L142 QuantifierPusher]: treesize reduction 265, result has 42.1 percent of original size [2021-03-26 14:30:09,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,730 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:09,731 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:09,732 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,733 INFO L142 QuantifierPusher]: treesize reduction 212, result has 36.3 percent of original size [2021-03-26 14:30:09,733 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:09,734 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,735 INFO L142 QuantifierPusher]: treesize reduction 124, result has 27.1 percent of original size [2021-03-26 14:30:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:09,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:09,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:09,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:09,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:09,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:09,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:09,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,774 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:30:09,774 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:09,775 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,776 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 14:30:09,777 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-26 14:30:09,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:09,803 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:09,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:09,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:09,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:09,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:09,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:09,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,809 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:30:09,809 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:09,809 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,811 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:30:09,811 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:09,812 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:09,813 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:30:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:09,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:09,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:09,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:09,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597937389] [2021-03-26 14:30:09,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:30:09,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:09,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:30:09,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:09,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2021-03-26 14:30:09,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 81 transitions, 898 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) [2021-03-26 14:30:09,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:09,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2021-03-26 14:30:09,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:10,339 INFO L129 PetriNetUnfolder]: 83/219 cut-off events. [2021-03-26 14:30:10,339 INFO L130 PetriNetUnfolder]: For 3822/3830 co-relation queries the response was YES. [2021-03-26 14:30:10,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 219 events. 83/219 cut-off events. For 3822/3830 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1080 event pairs, 6 based on Foata normal form. 2/209 useless extension candidates. Maximal degree in co-relation 1537. Up to 160 conditions per place. [2021-03-26 14:30:10,341 INFO L132 encePairwiseOnDemand]: 34/43 looper letters, 68 selfloop transitions, 21 changer transitions 2/95 dead transitions. [2021-03-26 14:30:10,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 95 transitions, 1321 flow [2021-03-26 14:30:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:30:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:30:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 154 transitions. [2021-03-26 14:30:10,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32558139534883723 [2021-03-26 14:30:10,342 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 154 transitions. [2021-03-26 14:30:10,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 154 transitions. [2021-03-26 14:30:10,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:10,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 154 transitions. [2021-03-26 14:30:10,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.0) internal successors, (154), 11 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) [2021-03-26 14:30:10,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:10,343 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:10,343 INFO L185 Difference]: Start difference. First operand has 104 places, 81 transitions, 898 flow. Second operand 11 states and 154 transitions. [2021-03-26 14:30:10,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 95 transitions, 1321 flow [2021-03-26 14:30:10,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 95 transitions, 1218 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:10,356 INFO L241 Difference]: Finished difference. Result has 112 places, 88 transitions, 1019 flow [2021-03-26 14:30:10,356 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1019, PETRI_PLACES=112, PETRI_TRANSITIONS=88} [2021-03-26 14:30:10,356 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 96 predicate places. [2021-03-26 14:30:10,356 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:10,357 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 88 transitions, 1019 flow [2021-03-26 14:30:10,357 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 88 transitions, 1019 flow [2021-03-26 14:30:10,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 88 transitions, 1019 flow [2021-03-26 14:30:10,375 INFO L129 PetriNetUnfolder]: 74/205 cut-off events. [2021-03-26 14:30:10,376 INFO L130 PetriNetUnfolder]: For 3752/3773 co-relation queries the response was YES. [2021-03-26 14:30:10,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 205 events. 74/205 cut-off events. For 3752/3773 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1047 event pairs, 4 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 1322. Up to 95 conditions per place. [2021-03-26 14:30:10,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:10,753 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:10,754 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:10,754 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 398 [2021-03-26 14:30:10,754 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 1024 flow [2021-03-26 14:30:10,754 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) [2021-03-26 14:30:10,754 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:10,754 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:10,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:10,975 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:10,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:10,976 INFO L82 PathProgramCache]: Analyzing trace with hash 487472178, now seen corresponding path program 1 times [2021-03-26 14:30:10,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:10,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547078633] [2021-03-26 14:30:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:10,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,001 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 14:30:11,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:11,011 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 14:30:11,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:11,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:11,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547078633] [2021-03-26 14:30:11,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749060443] [2021-03-26 14:30:11,028 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 [2021-03-26 14:30:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:11,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:30:11,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:11,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:11,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:11,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:11,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,101 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:11,102 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,103 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:11,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:11,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:11,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:11,120 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 14:30:11,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:11,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:11,138 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 14:30:11,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:11,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:11,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:11,144 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 14:30:11,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,146 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:11,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:11,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:11,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 14:30:11,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057606868] [2021-03-26 14:30:11,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 14:30:11,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:11,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 14:30:11,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 14:30:11,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2021-03-26 14:30:11,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 1024 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:11,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2021-03-26 14:30:11,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:11,260 INFO L129 PetriNetUnfolder]: 85/220 cut-off events. [2021-03-26 14:30:11,260 INFO L130 PetriNetUnfolder]: For 4293/4299 co-relation queries the response was YES. [2021-03-26 14:30:11,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 220 events. 85/220 cut-off events. For 4293/4299 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1095 event pairs, 2 based on Foata normal form. 7/217 useless extension candidates. Maximal degree in co-relation 1586. Up to 125 conditions per place. [2021-03-26 14:30:11,263 INFO L132 encePairwiseOnDemand]: 40/46 looper letters, 69 selfloop transitions, 14 changer transitions 0/95 dead transitions. [2021-03-26 14:30:11,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 95 transitions, 1306 flow [2021-03-26 14:30:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2021-03-26 14:30:11,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4311594202898551 [2021-03-26 14:30:11,264 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 119 transitions. [2021-03-26 14:30:11,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 119 transitions. [2021-03-26 14:30:11,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:11,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 119 transitions. [2021-03-26 14:30:11,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,265 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) [2021-03-26 14:30:11,265 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) [2021-03-26 14:30:11,265 INFO L185 Difference]: Start difference. First operand has 110 places, 88 transitions, 1024 flow. Second operand 6 states and 119 transitions. [2021-03-26 14:30:11,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 95 transitions, 1306 flow [2021-03-26 14:30:11,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 95 transitions, 1154 flow, removed 71 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:11,279 INFO L241 Difference]: Finished difference. Result has 112 places, 90 transitions, 932 flow [2021-03-26 14:30:11,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=932, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2021-03-26 14:30:11,279 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 96 predicate places. [2021-03-26 14:30:11,279 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:11,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 90 transitions, 932 flow [2021-03-26 14:30:11,280 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 90 transitions, 932 flow [2021-03-26 14:30:11,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 90 transitions, 932 flow [2021-03-26 14:30:11,298 INFO L129 PetriNetUnfolder]: 78/211 cut-off events. [2021-03-26 14:30:11,298 INFO L130 PetriNetUnfolder]: For 4026/4043 co-relation queries the response was YES. [2021-03-26 14:30:11,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 211 events. 78/211 cut-off events. For 4026/4043 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1066 event pairs, 2 based on Foata normal form. 4/204 useless extension candidates. Maximal degree in co-relation 1360. Up to 99 conditions per place. [2021-03-26 14:30:11,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:11,302 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:11,302 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:11,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 14:30:11,303 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 932 flow [2021-03-26 14:30:11,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:11,303 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:11,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:11,525 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:11,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:11,525 INFO L82 PathProgramCache]: Analyzing trace with hash -476848648, now seen corresponding path program 1 times [2021-03-26 14:30:11,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:11,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395101241] [2021-03-26 14:30:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:11,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:11,548 INFO L142 QuantifierPusher]: treesize reduction 42, result has 35.4 percent of original size [2021-03-26 14:30:11,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:11,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:11,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:11,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395101241] [2021-03-26 14:30:11,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827585573] [2021-03-26 14:30:11,577 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 [2021-03-26 14:30:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:11,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:30:11,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:11,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:11,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:11,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:11,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,618 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:11,618 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:11,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:11,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:30:11,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:30:11,621 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-26 14:30:11,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:30:11,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:30:11,640 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.5 percent of original size [2021-03-26 14:30:11,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:11,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:11,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:30:11,643 INFO L142 QuantifierPusher]: treesize reduction 160, result has 41.8 percent of original size [2021-03-26 14:30:11,643 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:11,644 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,644 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-26 14:30:11,645 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:11,645 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:11,646 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-26 14:30:11,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:11,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:11,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:11,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:11,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:30:11,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:11,666 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:11,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:11,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:11,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:30:11,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274953158] [2021-03-26 14:30:11,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:30:11,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:11,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:30:11,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:30:11,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-26 14:30:11,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 932 flow. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:11,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-26 14:30:11,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:11,846 INFO L129 PetriNetUnfolder]: 88/222 cut-off events. [2021-03-26 14:30:11,846 INFO L130 PetriNetUnfolder]: For 4554/4574 co-relation queries the response was YES. [2021-03-26 14:30:11,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1716 conditions, 222 events. 88/222 cut-off events. For 4554/4574 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1067 event pairs, 6 based on Foata normal form. 8/219 useless extension candidates. Maximal degree in co-relation 1644. Up to 158 conditions per place. [2021-03-26 14:30:11,848 INFO L132 encePairwiseOnDemand]: 37/46 looper letters, 74 selfloop transitions, 16 changer transitions 0/96 dead transitions. [2021-03-26 14:30:11,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 96 transitions, 1371 flow [2021-03-26 14:30:11,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-26 14:30:11,849 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34782608695652173 [2021-03-26 14:30:11,849 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-26 14:30:11,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-26 14:30:11,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:11,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-26 14:30:11,850 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) [2021-03-26 14:30:11,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,850 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,851 INFO L185 Difference]: Start difference. First operand has 112 places, 90 transitions, 932 flow. Second operand 10 states and 160 transitions. [2021-03-26 14:30:11,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 96 transitions, 1371 flow [2021-03-26 14:30:11,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 96 transitions, 1321 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:11,864 INFO L241 Difference]: Finished difference. Result has 116 places, 90 transitions, 999 flow [2021-03-26 14:30:11,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=999, PETRI_PLACES=116, PETRI_TRANSITIONS=90} [2021-03-26 14:30:11,864 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 100 predicate places. [2021-03-26 14:30:11,864 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:11,864 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 90 transitions, 999 flow [2021-03-26 14:30:11,864 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 90 transitions, 999 flow [2021-03-26 14:30:11,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 90 transitions, 999 flow [2021-03-26 14:30:11,883 INFO L129 PetriNetUnfolder]: 80/209 cut-off events. [2021-03-26 14:30:11,883 INFO L130 PetriNetUnfolder]: For 4095/4117 co-relation queries the response was YES. [2021-03-26 14:30:11,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 209 events. 80/209 cut-off events. For 4095/4117 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1024 event pairs, 2 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 1414. Up to 103 conditions per place. [2021-03-26 14:30:11,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 14:30:11,888 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:11,888 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:11,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 14:30:11,888 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 90 transitions, 999 flow [2021-03-26 14:30:11,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:11,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:11,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:12,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-03-26 14:30:12,110 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1629301058, now seen corresponding path program 1 times [2021-03-26 14:30:12,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:12,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733666882] [2021-03-26 14:30:12,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,140 INFO L142 QuantifierPusher]: treesize reduction 111, result has 15.3 percent of original size [2021-03-26 14:30:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:30:12,148 INFO L142 QuantifierPusher]: treesize reduction 130, result has 14.5 percent of original size [2021-03-26 14:30:12,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:12,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:12,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:12,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733666882] [2021-03-26 14:30:12,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:12,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:12,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259001547] [2021-03-26 14:30:12,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:12,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:12,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:12,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:12,167 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-26 14:30:12,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 90 transitions, 999 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:12,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-26 14:30:12,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:12,268 INFO L129 PetriNetUnfolder]: 88/225 cut-off events. [2021-03-26 14:30:12,268 INFO L130 PetriNetUnfolder]: For 4775/4779 co-relation queries the response was YES. [2021-03-26 14:30:12,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 225 events. 88/225 cut-off events. For 4775/4779 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1099 event pairs, 2 based on Foata normal form. 3/216 useless extension candidates. Maximal degree in co-relation 1682. Up to 149 conditions per place. [2021-03-26 14:30:12,270 INFO L132 encePairwiseOnDemand]: 38/46 looper letters, 69 selfloop transitions, 18 changer transitions 0/93 dead transitions. [2021-03-26 14:30:12,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 93 transitions, 1280 flow [2021-03-26 14:30:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2021-03-26 14:30:12,271 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38405797101449274 [2021-03-26 14:30:12,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 106 transitions. [2021-03-26 14:30:12,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 106 transitions. [2021-03-26 14:30:12,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:12,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 106 transitions. [2021-03-26 14:30:12,272 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) [2021-03-26 14:30:12,273 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) [2021-03-26 14:30:12,273 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) [2021-03-26 14:30:12,273 INFO L185 Difference]: Start difference. First operand has 116 places, 90 transitions, 999 flow. Second operand 6 states and 106 transitions. [2021-03-26 14:30:12,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 93 transitions, 1280 flow [2021-03-26 14:30:12,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 93 transitions, 1208 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-26 14:30:12,287 INFO L241 Difference]: Finished difference. Result has 113 places, 88 transitions, 993 flow [2021-03-26 14:30:12,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=993, PETRI_PLACES=113, PETRI_TRANSITIONS=88} [2021-03-26 14:30:12,287 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 97 predicate places. [2021-03-26 14:30:12,288 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:12,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 88 transitions, 993 flow [2021-03-26 14:30:12,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 88 transitions, 993 flow [2021-03-26 14:30:12,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 88 transitions, 993 flow [2021-03-26 14:30:12,306 INFO L129 PetriNetUnfolder]: 80/211 cut-off events. [2021-03-26 14:30:12,307 INFO L130 PetriNetUnfolder]: For 4816/4846 co-relation queries the response was YES. [2021-03-26 14:30:12,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 211 events. 80/211 cut-off events. For 4816/4846 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1053 event pairs, 3 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 1463. Up to 107 conditions per place. [2021-03-26 14:30:12,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:12,311 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:12,311 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:12,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 14:30:12,312 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 88 transitions, 993 flow [2021-03-26 14:30:12,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,312 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:12,312 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:12,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-26 14:30:12,312 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:12,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:12,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1354735563, now seen corresponding path program 1 times [2021-03-26 14:30:12,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:12,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420482032] [2021-03-26 14:30:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:12,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:12,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:12,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:12,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:12,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420482032] [2021-03-26 14:30:12,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:12,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:12,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662256622] [2021-03-26 14:30:12,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:12,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:12,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:12,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:12,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-26 14:30:12,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 88 transitions, 993 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:12,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-26 14:30:12,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:12,459 INFO L129 PetriNetUnfolder]: 87/223 cut-off events. [2021-03-26 14:30:12,460 INFO L130 PetriNetUnfolder]: For 5010/5014 co-relation queries the response was YES. [2021-03-26 14:30:12,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 223 events. 87/223 cut-off events. For 5010/5014 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1087 event pairs, 5 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 1682. Up to 155 conditions per place. [2021-03-26 14:30:12,462 INFO L132 encePairwiseOnDemand]: 37/46 looper letters, 72 selfloop transitions, 12 changer transitions 1/91 dead transitions. [2021-03-26 14:30:12,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 91 transitions, 1236 flow [2021-03-26 14:30:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2021-03-26 14:30:12,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39565217391304347 [2021-03-26 14:30:12,463 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 91 transitions. [2021-03-26 14:30:12,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 91 transitions. [2021-03-26 14:30:12,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:12,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 91 transitions. [2021-03-26 14:30:12,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2021-03-26 14:30:12,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,464 INFO L185 Difference]: Start difference. First operand has 113 places, 88 transitions, 993 flow. Second operand 5 states and 91 transitions. [2021-03-26 14:30:12,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 91 transitions, 1236 flow [2021-03-26 14:30:12,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 91 transitions, 1171 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:12,480 INFO L241 Difference]: Finished difference. Result has 113 places, 86 transitions, 922 flow [2021-03-26 14:30:12,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=922, PETRI_PLACES=113, PETRI_TRANSITIONS=86} [2021-03-26 14:30:12,480 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 97 predicate places. [2021-03-26 14:30:12,480 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:12,481 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 86 transitions, 922 flow [2021-03-26 14:30:12,481 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 86 transitions, 922 flow [2021-03-26 14:30:12,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 86 transitions, 922 flow [2021-03-26 14:30:12,511 INFO L129 PetriNetUnfolder]: 86/216 cut-off events. [2021-03-26 14:30:12,511 INFO L130 PetriNetUnfolder]: For 5541/5562 co-relation queries the response was YES. [2021-03-26 14:30:12,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1620 conditions, 216 events. 86/216 cut-off events. For 5541/5562 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1094 event pairs, 3 based on Foata normal form. 2/205 useless extension candidates. Maximal degree in co-relation 1551. Up to 116 conditions per place. [2021-03-26 14:30:12,515 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 14:30:12,517 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:12,517 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:12,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 14:30:12,521 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 86 transitions, 922 flow [2021-03-26 14:30:12,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:12,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:12,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:12,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-26 14:30:12,521 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:12,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:12,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1375614873, now seen corresponding path program 1 times [2021-03-26 14:30:12,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:12,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527272965] [2021-03-26 14:30:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:12,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:12,550 INFO L142 QuantifierPusher]: treesize reduction 354, result has 24.0 percent of original size [2021-03-26 14:30:12,551 INFO L147 QuantifierPusher]: treesize reduction 73, result has 34.8 percent of original size 39 [2021-03-26 14:30:12,603 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 14:30:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:12,618 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:12,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:12,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:12,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527272965] [2021-03-26 14:30:12,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158927680] [2021-03-26 14:30:12,642 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 [2021-03-26 14:30:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:12,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:30:12,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:12,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:12,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:12,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:12,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:12,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:12,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,686 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:12,686 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:12,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:12,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-26 14:30:12,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:12,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-03-26 14:30:12,692 INFO L142 QuantifierPusher]: treesize reduction 265, result has 33.1 percent of original size [2021-03-26 14:30:12,694 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size 118 [2021-03-26 14:30:12,694 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size [2021-03-26 14:30:12,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-03-26 14:30:12,806 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-26 14:30:12,807 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.2 percent of original size [2021-03-26 14:30:12,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:12,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:30:12,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:30:12,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-26 14:30:12,811 INFO L142 QuantifierPusher]: treesize reduction 23, result has 88.2 percent of original size [2021-03-26 14:30:12,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,825 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:12,825 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:12,826 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,827 INFO L142 QuantifierPusher]: treesize reduction 188, result has 37.5 percent of original size [2021-03-26 14:30:12,828 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:12,828 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,829 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-26 14:30:12,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:12,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:12,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:12,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:12,864 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:12,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:12,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:12,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:12,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:12,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,870 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:30:12,870 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:12,871 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,873 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 14:30:12,873 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:12,874 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,875 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-26 14:30:12,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:12,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:12,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:12,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:12,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:12,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:12,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,897 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:30:12,897 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:12,898 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,898 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:12,899 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:12,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:12,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:12,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:12,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543813353] [2021-03-26 14:30:12,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:30:12,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:12,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:30:12,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:12,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2021-03-26 14:30:12,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 86 transitions, 922 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) [2021-03-26 14:30:12,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:12,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2021-03-26 14:30:12,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:13,455 INFO L129 PetriNetUnfolder]: 95/263 cut-off events. [2021-03-26 14:30:13,455 INFO L130 PetriNetUnfolder]: For 6199/6219 co-relation queries the response was YES. [2021-03-26 14:30:13,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 263 events. 95/263 cut-off events. For 6199/6219 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1392 event pairs, 8 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 1961. Up to 181 conditions per place. [2021-03-26 14:30:13,458 INFO L132 encePairwiseOnDemand]: 39/46 looper letters, 86 selfloop transitions, 17 changer transitions 4/111 dead transitions. [2021-03-26 14:30:13,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 111 transitions, 1536 flow [2021-03-26 14:30:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2021-03-26 14:30:13,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3217391304347826 [2021-03-26 14:30:13,460 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 148 transitions. [2021-03-26 14:30:13,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 148 transitions. [2021-03-26 14:30:13,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:13,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 148 transitions. [2021-03-26 14:30:13,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.8) internal successors, (148), 10 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) [2021-03-26 14:30:13,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:13,461 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:13,462 INFO L185 Difference]: Start difference. First operand has 111 places, 86 transitions, 922 flow. Second operand 10 states and 148 transitions. [2021-03-26 14:30:13,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 111 transitions, 1536 flow [2021-03-26 14:30:13,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 1482 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:13,481 INFO L241 Difference]: Finished difference. Result has 120 places, 98 transitions, 1149 flow [2021-03-26 14:30:13,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1149, PETRI_PLACES=120, PETRI_TRANSITIONS=98} [2021-03-26 14:30:13,482 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 104 predicate places. [2021-03-26 14:30:13,482 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:13,482 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 98 transitions, 1149 flow [2021-03-26 14:30:13,482 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 98 transitions, 1149 flow [2021-03-26 14:30:13,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 98 transitions, 1149 flow [2021-03-26 14:30:13,505 INFO L129 PetriNetUnfolder]: 89/246 cut-off events. [2021-03-26 14:30:13,505 INFO L130 PetriNetUnfolder]: For 6317/6329 co-relation queries the response was YES. [2021-03-26 14:30:13,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 246 events. 89/246 cut-off events. For 6317/6329 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1315 event pairs, 7 based on Foata normal form. 6/248 useless extension candidates. Maximal degree in co-relation 1753. Up to 125 conditions per place. [2021-03-26 14:30:13,507 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 14:30:13,715 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:13,715 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:13,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-26 14:30:13,716 INFO L480 AbstractCegarLoop]: Abstraction has has 119 places, 98 transitions, 1156 flow [2021-03-26 14:30:13,716 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) [2021-03-26 14:30:13,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:13,716 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:13,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-03-26 14:30:13,916 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:13,917 INFO L82 PathProgramCache]: Analyzing trace with hash -397249885, now seen corresponding path program 2 times [2021-03-26 14:30:13,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:13,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065514461] [2021-03-26 14:30:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:13,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:13,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:13,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:13,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:13,942 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.5 percent of original size [2021-03-26 14:30:13,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:13,967 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size [2021-03-26 14:30:13,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:13,981 INFO L142 QuantifierPusher]: treesize reduction -1, result has 112.5 percent of original size [2021-03-26 14:30:13,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:13,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:13,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:13,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065514461] [2021-03-26 14:30:13,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293776079] [2021-03-26 14:30:13,997 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 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 [2021-03-26 14:30:14,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:14,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:14,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:30:14,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:14,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:14,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:14,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:14,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:14,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,043 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:14,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:14,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:14,044 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-26 14:30:14,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:14,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:14,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:14,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 14:30:14,048 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 14:30:14,049 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 14:30:14,049 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 14:30:14,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:14,117 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-26 14:30:14,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:14,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:30:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,124 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:14,124 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:14,125 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,125 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:14,125 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:14,126 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:14,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,128 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:14,128 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,129 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:30:14,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:14,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:14,131 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-26 14:30:14,132 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-26 14:30:14,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 14:30:14,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:30:14,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 14:30:14,141 INFO L142 QuantifierPusher]: treesize reduction 158, result has 43.0 percent of original size [2021-03-26 14:30:14,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,142 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:14,142 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:14,143 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,144 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.1 percent of original size [2021-03-26 14:30:14,144 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:14,145 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,146 INFO L142 QuantifierPusher]: treesize reduction 70, result has 49.6 percent of original size [2021-03-26 14:30:14,146 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:14,146 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,147 INFO L142 QuantifierPusher]: treesize reduction 33, result has 29.8 percent of original size [2021-03-26 14:30:14,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:30:14,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:14,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:14,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:14,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:14,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:14,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:30:14,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:14,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:14,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:30:14,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3841092] [2021-03-26 14:30:14,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:30:14,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:14,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:30:14,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:30:14,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2021-03-26 14:30:14,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 98 transitions, 1156 flow. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:14,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:14,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2021-03-26 14:30:14,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:14,466 INFO L129 PetriNetUnfolder]: 108/301 cut-off events. [2021-03-26 14:30:14,466 INFO L130 PetriNetUnfolder]: For 7791/7811 co-relation queries the response was YES. [2021-03-26 14:30:14,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 301 events. 108/301 cut-off events. For 7791/7811 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1699 event pairs, 7 based on Foata normal form. 2/299 useless extension candidates. Maximal degree in co-relation 2412. Up to 162 conditions per place. [2021-03-26 14:30:14,469 INFO L132 encePairwiseOnDemand]: 38/47 looper letters, 95 selfloop transitions, 27 changer transitions 2/128 dead transitions. [2021-03-26 14:30:14,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 128 transitions, 1888 flow [2021-03-26 14:30:14,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:14,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:14,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2021-03-26 14:30:14,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3546099290780142 [2021-03-26 14:30:14,470 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 100 transitions. [2021-03-26 14:30:14,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 100 transitions. [2021-03-26 14:30:14,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:14,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 100 transitions. [2021-03-26 14:30:14,471 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) [2021-03-26 14:30:14,471 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) [2021-03-26 14:30:14,471 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) [2021-03-26 14:30:14,472 INFO L185 Difference]: Start difference. First operand has 119 places, 98 transitions, 1156 flow. Second operand 6 states and 100 transitions. [2021-03-26 14:30:14,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 128 transitions, 1888 flow [2021-03-26 14:30:14,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 128 transitions, 1764 flow, removed 60 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:14,497 INFO L241 Difference]: Finished difference. Result has 125 places, 102 transitions, 1242 flow [2021-03-26 14:30:14,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1242, PETRI_PLACES=125, PETRI_TRANSITIONS=102} [2021-03-26 14:30:14,497 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 109 predicate places. [2021-03-26 14:30:14,497 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:14,497 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 102 transitions, 1242 flow [2021-03-26 14:30:14,498 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 102 transitions, 1242 flow [2021-03-26 14:30:14,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 102 transitions, 1242 flow [2021-03-26 14:30:14,526 INFO L129 PetriNetUnfolder]: 102/294 cut-off events. [2021-03-26 14:30:14,526 INFO L130 PetriNetUnfolder]: For 7730/7741 co-relation queries the response was YES. [2021-03-26 14:30:14,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 294 events. 102/294 cut-off events. For 7730/7741 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1733 event pairs, 13 based on Foata normal form. 10/301 useless extension candidates. Maximal degree in co-relation 2134. Up to 142 conditions per place. [2021-03-26 14:30:14,529 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 14:30:14,727 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:14,727 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:14,727 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-26 14:30:14,728 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 1250 flow [2021-03-26 14:30:14,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:14,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:14,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:14,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2021-03-26 14:30:14,944 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash -340944895, now seen corresponding path program 3 times [2021-03-26 14:30:14,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:14,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466022515] [2021-03-26 14:30:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:14,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:14,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:14,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:14,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:15,005 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 14:30:15,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:15,024 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:15,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:15,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466022515] [2021-03-26 14:30:15,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244742816] [2021-03-26 14:30:15,042 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:15,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:30:15,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:15,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 14:30:15,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:15,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:15,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:15,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,076 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:15,076 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:15,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:15,077 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-26 14:30:15,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:15,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:15,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 14:30:15,080 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 14:30:15,081 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 14:30:15,081 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 14:30:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:15,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:15,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 14:30:15,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 14:30:15,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:30:15,156 INFO L142 QuantifierPusher]: treesize reduction 265, result has 44.8 percent of original size [2021-03-26 14:30:15,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,158 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:15,158 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:15,159 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,160 INFO L142 QuantifierPusher]: treesize reduction 238, result has 36.9 percent of original size [2021-03-26 14:30:15,161 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:15,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,162 INFO L142 QuantifierPusher]: treesize reduction 148, result has 26.0 percent of original size [2021-03-26 14:30:15,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:15,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:15,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:15,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:15,205 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:30:15,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:15,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:15,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:15,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:30:15,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,212 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:30:15,213 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:15,213 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,215 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:30:15,215 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:15,216 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,217 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:30:15,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:15,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:15,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:15,242 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:15,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:15,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:15,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:15,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:15,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,248 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:15,248 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:15,249 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,250 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:15,250 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:15,250 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:15,251 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:30:15,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:15,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 14:30:15,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-03-26 14:30:15,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873771512] [2021-03-26 14:30:15,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 14:30:15,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:15,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 14:30:15,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:15,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2021-03-26 14:30:15,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 1250 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:15,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:15,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2021-03-26 14:30:15,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:15,656 INFO L129 PetriNetUnfolder]: 106/295 cut-off events. [2021-03-26 14:30:15,656 INFO L130 PetriNetUnfolder]: For 7583/7607 co-relation queries the response was YES. [2021-03-26 14:30:15,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 295 events. 106/295 cut-off events. For 7583/7607 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1654 event pairs, 8 based on Foata normal form. 3/295 useless extension candidates. Maximal degree in co-relation 2355. Up to 161 conditions per place. [2021-03-26 14:30:15,659 INFO L132 encePairwiseOnDemand]: 37/48 looper letters, 90 selfloop transitions, 28 changer transitions 4/126 dead transitions. [2021-03-26 14:30:15,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 126 transitions, 1873 flow [2021-03-26 14:30:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-03-26 14:30:15,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34523809523809523 [2021-03-26 14:30:15,660 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-03-26 14:30:15,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-03-26 14:30:15,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:15,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-03-26 14:30:15,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-03-26 14:30:15,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 48.0) internal successors, (384), 8 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:15,661 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 48.0) internal successors, (384), 8 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:15,662 INFO L185 Difference]: Start difference. First operand has 124 places, 102 transitions, 1250 flow. Second operand 7 states and 116 transitions. [2021-03-26 14:30:15,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 126 transitions, 1873 flow [2021-03-26 14:30:15,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 126 transitions, 1768 flow, removed 40 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:15,684 INFO L241 Difference]: Finished difference. Result has 130 places, 103 transitions, 1290 flow [2021-03-26 14:30:15,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1158, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2021-03-26 14:30:15,685 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 114 predicate places. [2021-03-26 14:30:15,685 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:15,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 103 transitions, 1290 flow [2021-03-26 14:30:15,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 103 transitions, 1290 flow [2021-03-26 14:30:15,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 103 transitions, 1290 flow [2021-03-26 14:30:15,710 INFO L129 PetriNetUnfolder]: 99/279 cut-off events. [2021-03-26 14:30:15,711 INFO L130 PetriNetUnfolder]: For 5835/5860 co-relation queries the response was YES. [2021-03-26 14:30:15,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 279 events. 99/279 cut-off events. For 5835/5860 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1608 event pairs, 11 based on Foata normal form. 3/273 useless extension candidates. Maximal degree in co-relation 1998. Up to 138 conditions per place. [2021-03-26 14:30:15,712 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 14:30:15,898 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:15,898 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:15,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-26 14:30:15,899 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 103 transitions, 1300 flow [2021-03-26 14:30:15,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:15,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:15,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:16,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:16,104 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:16,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1147123556, now seen corresponding path program 1 times [2021-03-26 14:30:16,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:16,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207532597] [2021-03-26 14:30:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:16,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,119 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-26 14:30:16,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:16,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:16,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207532597] [2021-03-26 14:30:16,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067771647] [2021-03-26 14:30:16,138 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 [2021-03-26 14:30:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:16,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 14:30:16,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:16,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:16,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:16,172 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:30:16,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:16,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:16,186 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 14:30:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:16,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:16,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:16,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:16,193 INFO L142 QuantifierPusher]: treesize reduction 234, result has 7.9 percent of original size [2021-03-26 14:30:16,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,201 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:16,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:16,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:16,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 14:30:16,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572880090] [2021-03-26 14:30:16,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:16,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:16,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:16,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:16,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2021-03-26 14:30:16,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 103 transitions, 1300 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:16,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:16,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2021-03-26 14:30:16,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:16,449 INFO L129 PetriNetUnfolder]: 126/358 cut-off events. [2021-03-26 14:30:16,449 INFO L130 PetriNetUnfolder]: For 8620/8644 co-relation queries the response was YES. [2021-03-26 14:30:16,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3033 conditions, 358 events. 126/358 cut-off events. For 8620/8644 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2121 event pairs, 14 based on Foata normal form. 6/361 useless extension candidates. Maximal degree in co-relation 2923. Up to 180 conditions per place. [2021-03-26 14:30:16,453 INFO L132 encePairwiseOnDemand]: 32/49 looper letters, 104 selfloop transitions, 29 changer transitions 1/140 dead transitions. [2021-03-26 14:30:16,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 2224 flow [2021-03-26 14:30:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions. [2021-03-26 14:30:16,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37317784256559766 [2021-03-26 14:30:16,454 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 128 transitions. [2021-03-26 14:30:16,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 128 transitions. [2021-03-26 14:30:16,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:16,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 128 transitions. [2021-03-26 14:30:16,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 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) [2021-03-26 14:30:16,455 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) [2021-03-26 14:30:16,455 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) [2021-03-26 14:30:16,455 INFO L185 Difference]: Start difference. First operand has 129 places, 103 transitions, 1300 flow. Second operand 7 states and 128 transitions. [2021-03-26 14:30:16,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 2224 flow [2021-03-26 14:30:16,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 140 transitions, 2125 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:16,483 INFO L241 Difference]: Finished difference. Result has 134 places, 106 transitions, 1368 flow [2021-03-26 14:30:16,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1368, PETRI_PLACES=134, PETRI_TRANSITIONS=106} [2021-03-26 14:30:16,483 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 118 predicate places. [2021-03-26 14:30:16,484 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:16,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 106 transitions, 1368 flow [2021-03-26 14:30:16,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 106 transitions, 1368 flow [2021-03-26 14:30:16,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 106 transitions, 1368 flow [2021-03-26 14:30:16,517 INFO L129 PetriNetUnfolder]: 120/352 cut-off events. [2021-03-26 14:30:16,517 INFO L130 PetriNetUnfolder]: For 7833/7856 co-relation queries the response was YES. [2021-03-26 14:30:16,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 352 events. 120/352 cut-off events. For 7833/7856 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2149 event pairs, 17 based on Foata normal form. 7/353 useless extension candidates. Maximal degree in co-relation 2589. Up to 175 conditions per place. [2021-03-26 14:30:16,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 14:30:16,522 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:16,522 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:16,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 14:30:16,523 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 106 transitions, 1368 flow [2021-03-26 14:30:16,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:16,523 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:16,523 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:16,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:16,736 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:16,736 INFO L82 PathProgramCache]: Analyzing trace with hash 2087476688, now seen corresponding path program 1 times [2021-03-26 14:30:16,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:16,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729692320] [2021-03-26 14:30:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:16,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:16,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:16,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:16,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729692320] [2021-03-26 14:30:16,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558393210] [2021-03-26 14:30:16,766 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 [2021-03-26 14:30:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:16,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 14:30:16,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:16,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:16,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:16,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:16,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:16,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:16,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,833 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:16,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:16,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:16,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:16,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:16,836 INFO L142 QuantifierPusher]: treesize reduction 28, result has 42.9 percent of original size [2021-03-26 14:30:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:16,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:16,848 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.3 percent of original size [2021-03-26 14:30:16,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:16,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:16,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:16,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:16,851 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 14:30:16,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:16,853 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:16,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:16,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:16,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 14:30:16,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077274580] [2021-03-26 14:30:16,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:16,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:16,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:16,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2021-03-26 14:30:16,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 106 transitions, 1368 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2021-03-26 14:30:16,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:16,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2021-03-26 14:30:16,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:16,957 INFO L129 PetriNetUnfolder]: 117/325 cut-off events. [2021-03-26 14:30:16,958 INFO L130 PetriNetUnfolder]: For 8601/8633 co-relation queries the response was YES. [2021-03-26 14:30:16,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 325 events. 117/325 cut-off events. For 8601/8633 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1830 event pairs, 16 based on Foata normal form. 7/328 useless extension candidates. Maximal degree in co-relation 2682. Up to 197 conditions per place. [2021-03-26 14:30:16,960 INFO L132 encePairwiseOnDemand]: 45/49 looper letters, 86 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2021-03-26 14:30:16,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 110 transitions, 1634 flow [2021-03-26 14:30:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-26 14:30:16,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42448979591836733 [2021-03-26 14:30:16,962 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-26 14:30:16,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-26 14:30:16,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:16,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-26 14:30:16,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2021-03-26 14:30:16,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:16,962 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:16,962 INFO L185 Difference]: Start difference. First operand has 134 places, 106 transitions, 1368 flow. Second operand 5 states and 104 transitions. [2021-03-26 14:30:16,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 110 transitions, 1634 flow [2021-03-26 14:30:16,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 110 transitions, 1585 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:16,981 INFO L241 Difference]: Finished difference. Result has 135 places, 106 transitions, 1365 flow [2021-03-26 14:30:16,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1305, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1365, PETRI_PLACES=135, PETRI_TRANSITIONS=106} [2021-03-26 14:30:16,982 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 119 predicate places. [2021-03-26 14:30:16,982 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:16,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 106 transitions, 1365 flow [2021-03-26 14:30:16,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 106 transitions, 1365 flow [2021-03-26 14:30:16,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 106 transitions, 1365 flow [2021-03-26 14:30:17,013 INFO L129 PetriNetUnfolder]: 116/323 cut-off events. [2021-03-26 14:30:17,014 INFO L130 PetriNetUnfolder]: For 7934/7958 co-relation queries the response was YES. [2021-03-26 14:30:17,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2541 conditions, 323 events. 116/323 cut-off events. For 7934/7958 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1861 event pairs, 13 based on Foata normal form. 10/329 useless extension candidates. Maximal degree in co-relation 2437. Up to 165 conditions per place. [2021-03-26 14:30:17,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-26 14:30:17,192 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 14:30:17,192 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:17,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 210 [2021-03-26 14:30:17,192 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 106 transitions, 1370 flow [2021-03-26 14:30:17,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2021-03-26 14:30:17,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:17,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:17,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:17,396 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:17,396 INFO L82 PathProgramCache]: Analyzing trace with hash 625741202, now seen corresponding path program 2 times [2021-03-26 14:30:17,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:17,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105069842] [2021-03-26 14:30:17,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:17,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:17,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:17,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:17,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:17,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105069842] [2021-03-26 14:30:17,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:17,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:17,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853963978] [2021-03-26 14:30:17,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:17,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:17,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:17,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:17,431 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2021-03-26 14:30:17,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 106 transitions, 1370 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:17,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:17,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2021-03-26 14:30:17,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:17,547 INFO L129 PetriNetUnfolder]: 122/322 cut-off events. [2021-03-26 14:30:17,547 INFO L130 PetriNetUnfolder]: For 8190/8214 co-relation queries the response was YES. [2021-03-26 14:30:17,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 322 events. 122/322 cut-off events. For 8190/8214 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1753 event pairs, 13 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 2717. Up to 186 conditions per place. [2021-03-26 14:30:17,549 INFO L132 encePairwiseOnDemand]: 37/50 looper letters, 96 selfloop transitions, 18 changer transitions 1/121 dead transitions. [2021-03-26 14:30:17,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 121 transitions, 1951 flow [2021-03-26 14:30:17,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2021-03-26 14:30:17,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.388 [2021-03-26 14:30:17,550 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 97 transitions. [2021-03-26 14:30:17,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 97 transitions. [2021-03-26 14:30:17,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:17,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 97 transitions. [2021-03-26 14:30:17,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 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) [2021-03-26 14:30:17,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:17,551 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:17,551 INFO L185 Difference]: Start difference. First operand has 135 places, 106 transitions, 1370 flow. Second operand 5 states and 97 transitions. [2021-03-26 14:30:17,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 121 transitions, 1951 flow [2021-03-26 14:30:17,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 121 transitions, 1910 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:17,571 INFO L241 Difference]: Finished difference. Result has 137 places, 109 transitions, 1439 flow [2021-03-26 14:30:17,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1329, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1439, PETRI_PLACES=137, PETRI_TRANSITIONS=109} [2021-03-26 14:30:17,571 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 121 predicate places. [2021-03-26 14:30:17,571 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:17,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 109 transitions, 1439 flow [2021-03-26 14:30:17,571 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 109 transitions, 1439 flow [2021-03-26 14:30:17,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 109 transitions, 1439 flow [2021-03-26 14:30:17,595 INFO L129 PetriNetUnfolder]: 116/315 cut-off events. [2021-03-26 14:30:17,595 INFO L130 PetriNetUnfolder]: For 7869/7890 co-relation queries the response was YES. [2021-03-26 14:30:17,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 315 events. 116/315 cut-off events. For 7869/7890 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1763 event pairs, 13 based on Foata normal form. 20/333 useless extension candidates. Maximal degree in co-relation 2398. Up to 163 conditions per place. [2021-03-26 14:30:17,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-26 14:30:17,781 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:30:17,781 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:17,782 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-03-26 14:30:17,782 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 109 transitions, 1447 flow [2021-03-26 14:30:17,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:17,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:17,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:17,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-26 14:30:17,782 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:17,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:17,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1182356917, now seen corresponding path program 1 times [2021-03-26 14:30:17,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:17,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749536337] [2021-03-26 14:30:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:17,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,806 INFO L142 QuantifierPusher]: treesize reduction 70, result has 37.5 percent of original size [2021-03-26 14:30:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:30:17,829 INFO L142 QuantifierPusher]: treesize reduction 58, result has 57.0 percent of original size [2021-03-26 14:30:17,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:17,885 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size [2021-03-26 14:30:17,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:17,914 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 14:30:17,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:17,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:17,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749536337] [2021-03-26 14:30:17,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551630418] [2021-03-26 14:30:17,941 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) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:17,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:17,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:17,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,975 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:17,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:17,976 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:17,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:17,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:17,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-03-26 14:30:17,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:17,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:17,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:17,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 555 [2021-03-26 14:30:18,016 INFO L142 QuantifierPusher]: treesize reduction 5696, result has 1.9 percent of original size [2021-03-26 14:30:18,017 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-26 14:30:18,018 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-26 14:30:18,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:30:18,061 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.6 percent of original size [2021-03-26 14:30:18,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:18,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-26 14:30:18,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 14:30:18,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:30:18,067 INFO L142 QuantifierPusher]: treesize reduction 214, result has 49.2 percent of original size [2021-03-26 14:30:18,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,069 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:18,069 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:18,070 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,072 INFO L142 QuantifierPusher]: treesize reduction 212, result has 41.3 percent of original size [2021-03-26 14:30:18,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:18,074 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,075 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-26 14:30:18,077 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:18,078 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,079 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-26 14:30:18,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:18,082 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 14:30:18,083 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 14:30:18,083 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 14:30:18,084 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-26 14:30:18,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:18,115 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:18,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:18,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:18,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:18,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:18,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,122 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:30:18,122 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:18,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,124 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 14:30:18,125 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:18,125 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,126 INFO L142 QuantifierPusher]: treesize reduction 103, result has 24.3 percent of original size [2021-03-26 14:30:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:18,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:18,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:18,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:18,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:18,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:18,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:18,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,153 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:30:18,153 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:18,154 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,154 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:18,155 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:18,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:18,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:18,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:18,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:18,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879217724] [2021-03-26 14:30:18,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:18,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:18,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:18,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:18,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2021-03-26 14:30:18,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 109 transitions, 1447 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:18,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:18,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2021-03-26 14:30:18,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:18,823 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2021-03-26 14:30:18,848 INFO L129 PetriNetUnfolder]: 130/356 cut-off events. [2021-03-26 14:30:18,848 INFO L130 PetriNetUnfolder]: For 9373/9397 co-relation queries the response was YES. [2021-03-26 14:30:18,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3144 conditions, 356 events. 130/356 cut-off events. For 9373/9397 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2040 event pairs, 17 based on Foata normal form. 3/357 useless extension candidates. Maximal degree in co-relation 3028. Up to 238 conditions per place. [2021-03-26 14:30:18,851 INFO L132 encePairwiseOnDemand]: 41/51 looper letters, 100 selfloop transitions, 31 changer transitions 4/139 dead transitions. [2021-03-26 14:30:18,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 139 transitions, 2220 flow [2021-03-26 14:30:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:30:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:30:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 177 transitions. [2021-03-26 14:30:18,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28921568627450983 [2021-03-26 14:30:18,852 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 177 transitions. [2021-03-26 14:30:18,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 177 transitions. [2021-03-26 14:30:18,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:18,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 177 transitions. [2021-03-26 14:30:18,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.75) internal successors, (177), 12 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) [2021-03-26 14:30:18,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 51.0) internal successors, (663), 13 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:18,853 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 51.0) internal successors, (663), 13 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:18,853 INFO L185 Difference]: Start difference. First operand has 137 places, 109 transitions, 1447 flow. Second operand 12 states and 177 transitions. [2021-03-26 14:30:18,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 139 transitions, 2220 flow [2021-03-26 14:30:18,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 139 transitions, 2195 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-26 14:30:18,874 INFO L241 Difference]: Finished difference. Result has 156 places, 120 transitions, 1778 flow [2021-03-26 14:30:18,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1778, PETRI_PLACES=156, PETRI_TRANSITIONS=120} [2021-03-26 14:30:18,874 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 140 predicate places. [2021-03-26 14:30:18,874 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:18,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 120 transitions, 1778 flow [2021-03-26 14:30:18,875 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 120 transitions, 1778 flow [2021-03-26 14:30:18,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 120 transitions, 1778 flow [2021-03-26 14:30:18,903 INFO L129 PetriNetUnfolder]: 123/339 cut-off events. [2021-03-26 14:30:18,903 INFO L130 PetriNetUnfolder]: For 10564/10586 co-relation queries the response was YES. [2021-03-26 14:30:18,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 339 events. 123/339 cut-off events. For 10564/10586 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1958 event pairs, 14 based on Foata normal form. 20/357 useless extension candidates. Maximal degree in co-relation 2878. Up to 178 conditions per place. [2021-03-26 14:30:18,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-26 14:30:19,156 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:19,156 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:19,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 282 [2021-03-26 14:30:19,157 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 120 transitions, 1795 flow [2021-03-26 14:30:19,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:19,157 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:19,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:19,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-03-26 14:30:19,358 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:19,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1120341447, now seen corresponding path program 1 times [2021-03-26 14:30:19,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:19,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111298556] [2021-03-26 14:30:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:19,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,377 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:30:19,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:19,382 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size [2021-03-26 14:30:19,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:19,401 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.2 percent of original size [2021-03-26 14:30:19,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:19,416 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:19,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:19,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111298556] [2021-03-26 14:30:19,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685213671] [2021-03-26 14:30:19,438 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 [2021-03-26 14:30:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:19,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:19,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:19,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:19,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,484 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,485 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,486 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:19,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:19,503 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 14:30:19,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 14:30:19,507 INFO L142 QuantifierPusher]: treesize reduction 214, result has 36.9 percent of original size [2021-03-26 14:30:19,508 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 14:30:19,509 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 14:30:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:30:19,639 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-26 14:30:19,640 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-26 14:30:19,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:19,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:19,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:19,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:19,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:30:19,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,647 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:19,647 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,649 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,649 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:19,649 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,650 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,651 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 14:30:19,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,652 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,653 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:30:19,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:19,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:19,656 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-26 14:30:19,656 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-26 14:30:19,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:19,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:19,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:30:19,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-03-26 14:30:19,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 14:30:19,668 INFO L142 QuantifierPusher]: treesize reduction 46, result has 77.3 percent of original size [2021-03-26 14:30:19,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,670 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:19,670 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:19,671 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,672 INFO L142 QuantifierPusher]: treesize reduction 189, result has 28.1 percent of original size [2021-03-26 14:30:19,672 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:19,673 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,673 INFO L142 QuantifierPusher]: treesize reduction 33, result has 32.7 percent of original size [2021-03-26 14:30:19,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:19,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:19,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:19,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:19,703 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 14:30:19,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:19,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:19,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:19,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:19,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:19,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,708 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2021-03-26 14:30:19,708 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,709 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,710 INFO L147 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size 32 [2021-03-26 14:30:19,710 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:19,711 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:19,712 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.8 percent of original size [2021-03-26 14:30:19,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:19,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:19,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:19,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:19,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788113801] [2021-03-26 14:30:19,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:30:19,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:19,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:30:19,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:19,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2021-03-26 14:30:19,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 120 transitions, 1795 flow. Second operand has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:19,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:19,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2021-03-26 14:30:19,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:20,271 INFO L129 PetriNetUnfolder]: 160/424 cut-off events. [2021-03-26 14:30:20,271 INFO L130 PetriNetUnfolder]: For 14640/14664 co-relation queries the response was YES. [2021-03-26 14:30:20,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 424 events. 160/424 cut-off events. For 14640/14664 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2568 event pairs, 17 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 4161. Up to 226 conditions per place. [2021-03-26 14:30:20,276 INFO L132 encePairwiseOnDemand]: 39/52 looper letters, 113 selfloop transitions, 45 changer transitions 5/167 dead transitions. [2021-03-26 14:30:20,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 167 transitions, 3016 flow [2021-03-26 14:30:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2021-03-26 14:30:20,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2980769230769231 [2021-03-26 14:30:20,278 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 155 transitions. [2021-03-26 14:30:20,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 155 transitions. [2021-03-26 14:30:20,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:20,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 155 transitions. [2021-03-26 14:30:20,278 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) [2021-03-26 14:30:20,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 52.0) internal successors, (572), 11 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:20,279 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 52.0) internal successors, (572), 11 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:20,279 INFO L185 Difference]: Start difference. First operand has 154 places, 120 transitions, 1795 flow. Second operand 10 states and 155 transitions. [2021-03-26 14:30:20,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 167 transitions, 3016 flow [2021-03-26 14:30:20,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 167 transitions, 2840 flow, removed 88 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:20,329 INFO L241 Difference]: Finished difference. Result has 167 places, 135 transitions, 2192 flow [2021-03-26 14:30:20,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2192, PETRI_PLACES=167, PETRI_TRANSITIONS=135} [2021-03-26 14:30:20,329 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 151 predicate places. [2021-03-26 14:30:20,329 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:20,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 135 transitions, 2192 flow [2021-03-26 14:30:20,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 135 transitions, 2192 flow [2021-03-26 14:30:20,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 135 transitions, 2192 flow [2021-03-26 14:30:20,375 INFO L129 PetriNetUnfolder]: 151/402 cut-off events. [2021-03-26 14:30:20,376 INFO L130 PetriNetUnfolder]: For 14220/14252 co-relation queries the response was YES. [2021-03-26 14:30:20,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3834 conditions, 402 events. 151/402 cut-off events. For 14220/14252 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2415 event pairs, 18 based on Foata normal form. 28/428 useless extension candidates. Maximal degree in co-relation 3717. Up to 214 conditions per place. [2021-03-26 14:30:20,379 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 14:30:20,914 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:20,914 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:20,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 586 [2021-03-26 14:30:20,915 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 135 transitions, 2231 flow [2021-03-26 14:30:20,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:20,915 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:20,915 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:21,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:21,120 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:21,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:21,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1864894108, now seen corresponding path program 1 times [2021-03-26 14:30:21,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:21,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135162988] [2021-03-26 14:30:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:21,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:21,162 INFO L142 QuantifierPusher]: treesize reduction 249, result has 25.2 percent of original size [2021-03-26 14:30:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-26 14:30:21,222 INFO L142 QuantifierPusher]: treesize reduction 249, result has 22.7 percent of original size [2021-03-26 14:30:21,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:30:21,271 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:21,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:21,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135162988] [2021-03-26 14:30:21,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784309286] [2021-03-26 14:30:21,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:21,338 WARN L261 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:30:21,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:21,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:21,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:21,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:21,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:21,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:21,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,347 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:21,347 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:21,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:21,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:21,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:30:21,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:21,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 722 [2021-03-26 14:30:21,369 INFO L142 QuantifierPusher]: treesize reduction 27079, result has 0.8 percent of original size [2021-03-26 14:30:21,371 INFO L147 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size 132 [2021-03-26 14:30:21,372 INFO L142 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size [2021-03-26 14:30:21,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:30:21,478 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size [2021-03-26 14:30:21,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:21,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-03-26 14:30:21,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:21,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-03-26 14:30:21,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,489 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:21,489 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:21,490 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,490 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:21,490 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:21,491 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:21,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,495 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:21,495 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,496 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 14:30:21,497 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:21,498 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:21,498 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:21,499 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,500 INFO L142 QuantifierPusher]: treesize reduction 155, result has 25.1 percent of original size [2021-03-26 14:30:21,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:21,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:30:21,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:30:21,564 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.1 percent of original size [2021-03-26 14:30:21,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-03-26 14:30:21,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 769 [2021-03-26 14:30:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-03-26 14:30:21,575 INFO L142 QuantifierPusher]: treesize reduction 1284, result has 11.3 percent of original size [2021-03-26 14:30:21,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,577 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:21,578 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:21,579 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,580 INFO L142 QuantifierPusher]: treesize reduction 180, result has 34.5 percent of original size [2021-03-26 14:30:21,585 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:21,587 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,587 INFO L142 QuantifierPusher]: treesize reduction 36, result has 41.9 percent of original size [2021-03-26 14:30:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:30:21,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:21,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:21,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:21,615 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:21,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:21,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:21,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:21,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:21,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:21,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,621 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:21,622 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:21,622 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,623 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:21,623 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:21,624 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:21,626 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:30:21,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:21,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:21,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:21,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651450925] [2021-03-26 14:30:21,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:30:21,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:21,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:30:21,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:21,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 55 [2021-03-26 14:30:21,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 135 transitions, 2231 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) [2021-03-26 14:30:21,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:21,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 55 [2021-03-26 14:30:21,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:22,345 INFO L129 PetriNetUnfolder]: 160/437 cut-off events. [2021-03-26 14:30:22,345 INFO L130 PetriNetUnfolder]: For 16346/16374 co-relation queries the response was YES. [2021-03-26 14:30:22,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4497 conditions, 437 events. 160/437 cut-off events. For 16346/16374 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2689 event pairs, 18 based on Foata normal form. 2/437 useless extension candidates. Maximal degree in co-relation 4370. Up to 344 conditions per place. [2021-03-26 14:30:22,350 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 128 selfloop transitions, 18 changer transitions 4/154 dead transitions. [2021-03-26 14:30:22,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 154 transitions, 2939 flow [2021-03-26 14:30:22,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2021-03-26 14:30:22,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2818181818181818 [2021-03-26 14:30:22,351 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 155 transitions. [2021-03-26 14:30:22,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 155 transitions. [2021-03-26 14:30:22,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:22,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 155 transitions. [2021-03-26 14:30:22,351 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) [2021-03-26 14:30:22,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 55.0) internal successors, (605), 11 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:22,352 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 55.0) internal successors, (605), 11 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:22,352 INFO L185 Difference]: Start difference. First operand has 165 places, 135 transitions, 2231 flow. Second operand 10 states and 155 transitions. [2021-03-26 14:30:22,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 154 transitions, 2939 flow [2021-03-26 14:30:22,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 154 transitions, 2609 flow, removed 155 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:22,396 INFO L241 Difference]: Finished difference. Result has 174 places, 146 transitions, 2245 flow [2021-03-26 14:30:22,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2245, PETRI_PLACES=174, PETRI_TRANSITIONS=146} [2021-03-26 14:30:22,397 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 158 predicate places. [2021-03-26 14:30:22,397 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:22,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 146 transitions, 2245 flow [2021-03-26 14:30:22,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 146 transitions, 2245 flow [2021-03-26 14:30:22,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 146 transitions, 2245 flow [2021-03-26 14:30:22,436 INFO L129 PetriNetUnfolder]: 154/416 cut-off events. [2021-03-26 14:30:22,436 INFO L130 PetriNetUnfolder]: For 11921/11952 co-relation queries the response was YES. [2021-03-26 14:30:22,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3656 conditions, 416 events. 154/416 cut-off events. For 11921/11952 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2575 event pairs, 13 based on Foata normal form. 23/437 useless extension candidates. Maximal degree in co-relation 3538. Up to 217 conditions per place. [2021-03-26 14:30:22,440 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 14:30:22,540 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:22,540 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:22,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-26 14:30:22,540 INFO L480 AbstractCegarLoop]: Abstraction has has 172 places, 146 transitions, 2252 flow [2021-03-26 14:30:22,541 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) [2021-03-26 14:30:22,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:22,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:22,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-03-26 14:30:22,748 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:22,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1804416763, now seen corresponding path program 1 times [2021-03-26 14:30:22,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:22,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133803202] [2021-03-26 14:30:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:22,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:22,768 INFO L142 QuantifierPusher]: treesize reduction 70, result has 34.0 percent of original size [2021-03-26 14:30:22,769 INFO L147 QuantifierPusher]: treesize reduction 15, result has 58.3 percent of original size 21 [2021-03-26 14:30:22,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:22,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:22,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133803202] [2021-03-26 14:30:22,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892884208] [2021-03-26 14:30:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:30:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:22,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 14:30:22,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:22,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:22,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:22,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:22,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:22,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:22,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:22,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,847 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:22,848 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:22,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:22,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:22,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:22,850 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-26 14:30:22,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:22,866 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.3 percent of original size [2021-03-26 14:30:22,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:22,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:22,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:22,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:22,868 INFO L142 QuantifierPusher]: treesize reduction 234, result has 7.9 percent of original size [2021-03-26 14:30:22,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:22,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:22,872 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:22,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:22,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:22,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 14:30:22,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057592287] [2021-03-26 14:30:22,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:22,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:22,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:22,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:22,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 56 [2021-03-26 14:30:22,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 146 transitions, 2252 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2021-03-26 14:30:22,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:22,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 56 [2021-03-26 14:30:22,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:23,027 INFO L129 PetriNetUnfolder]: 154/414 cut-off events. [2021-03-26 14:30:23,028 INFO L130 PetriNetUnfolder]: For 12157/12201 co-relation queries the response was YES. [2021-03-26 14:30:23,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3954 conditions, 414 events. 154/414 cut-off events. For 12157/12201 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2500 event pairs, 17 based on Foata normal form. 11/424 useless extension candidates. Maximal degree in co-relation 3817. Up to 258 conditions per place. [2021-03-26 14:30:23,033 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 121 selfloop transitions, 10 changer transitions 0/148 dead transitions. [2021-03-26 14:30:23,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 148 transitions, 2586 flow [2021-03-26 14:30:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2021-03-26 14:30:23,034 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37797619047619047 [2021-03-26 14:30:23,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 127 transitions. [2021-03-26 14:30:23,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 127 transitions. [2021-03-26 14:30:23,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:23,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 127 transitions. [2021-03-26 14:30:23,034 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) [2021-03-26 14:30:23,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 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) [2021-03-26 14:30:23,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 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) [2021-03-26 14:30:23,035 INFO L185 Difference]: Start difference. First operand has 172 places, 146 transitions, 2252 flow. Second operand 6 states and 127 transitions. [2021-03-26 14:30:23,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 148 transitions, 2586 flow [2021-03-26 14:30:23,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 148 transitions, 2396 flow, removed 95 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:23,073 INFO L241 Difference]: Finished difference. Result has 174 places, 144 transitions, 2053 flow [2021-03-26 14:30:23,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2019, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2053, PETRI_PLACES=174, PETRI_TRANSITIONS=144} [2021-03-26 14:30:23,073 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 158 predicate places. [2021-03-26 14:30:23,073 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:23,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 144 transitions, 2053 flow [2021-03-26 14:30:23,074 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 144 transitions, 2053 flow [2021-03-26 14:30:23,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 144 transitions, 2053 flow [2021-03-26 14:30:23,123 INFO L129 PetriNetUnfolder]: 152/412 cut-off events. [2021-03-26 14:30:23,123 INFO L130 PetriNetUnfolder]: For 11224/11250 co-relation queries the response was YES. [2021-03-26 14:30:23,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3491 conditions, 412 events. 152/412 cut-off events. For 11224/11250 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2548 event pairs, 13 based on Foata normal form. 19/429 useless extension candidates. Maximal degree in co-relation 3335. Up to 208 conditions per place. [2021-03-26 14:30:23,126 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:23,130 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:23,130 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:23,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-26 14:30:23,130 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 144 transitions, 2053 flow [2021-03-26 14:30:23,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2021-03-26 14:30:23,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:23,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:23,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2021-03-26 14:30:23,331 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:23,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:23,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1061430838, now seen corresponding path program 2 times [2021-03-26 14:30:23,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:23,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082933024] [2021-03-26 14:30:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:23,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:23,368 INFO L142 QuantifierPusher]: treesize reduction 244, result has 23.0 percent of original size [2021-03-26 14:30:23,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:30:23,423 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-03-26 14:30:23,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:23,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-03-26 14:30:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:23,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:23,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082933024] [2021-03-26 14:30:23,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135369790] [2021-03-26 14:30:23,490 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 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 [2021-03-26 14:30:23,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:23,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:23,523 WARN L261 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:30:23,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:23,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:23,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:23,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:23,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:23,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:23,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,533 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:23,534 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:23,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:23,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:30:23,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 722 [2021-03-26 14:30:23,569 INFO L142 QuantifierPusher]: treesize reduction 27079, result has 0.8 percent of original size [2021-03-26 14:30:23,571 INFO L147 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size 132 [2021-03-26 14:30:23,572 INFO L142 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size [2021-03-26 14:30:23,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:30:23,660 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-03-26 14:30:23,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:23,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-03-26 14:30:23,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 819 [2021-03-26 14:30:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 820 [2021-03-26 14:30:23,671 INFO L142 QuantifierPusher]: treesize reduction 1268, result has 15.3 percent of original size [2021-03-26 14:30:23,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,673 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:23,673 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:23,674 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,676 INFO L142 QuantifierPusher]: treesize reduction 240, result has 41.0 percent of original size [2021-03-26 14:30:23,676 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:30:23,677 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,678 INFO L142 QuantifierPusher]: treesize reduction 145, result has 35.6 percent of original size [2021-03-26 14:30:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:23,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:23,724 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:30:23,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:23,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:23,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:23,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:30:23,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,731 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:30:23,731 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:23,732 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,734 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:30:23,734 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:23,735 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,735 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:30:23,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:23,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:23,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:23,760 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:23,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:23,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:23,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:23,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:23,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,770 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:23,770 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:23,771 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,771 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:23,772 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:23,772 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:23,773 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:30:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:23,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:23,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:23,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:23,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357263980] [2021-03-26 14:30:23,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:30:23,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:23,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:30:23,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:30:23,800 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2021-03-26 14:30:23,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 144 transitions, 2053 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) [2021-03-26 14:30:23,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:23,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2021-03-26 14:30:23,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:24,315 INFO L129 PetriNetUnfolder]: 159/435 cut-off events. [2021-03-26 14:30:24,316 INFO L130 PetriNetUnfolder]: For 12443/12471 co-relation queries the response was YES. [2021-03-26 14:30:24,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4102 conditions, 435 events. 159/435 cut-off events. For 12443/12471 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2695 event pairs, 20 based on Foata normal form. 5/438 useless extension candidates. Maximal degree in co-relation 3959. Up to 341 conditions per place. [2021-03-26 14:30:24,319 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 127 selfloop transitions, 19 changer transitions 5/155 dead transitions. [2021-03-26 14:30:24,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 155 transitions, 2593 flow [2021-03-26 14:30:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:30:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:30:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 158 transitions. [2021-03-26 14:30:24,322 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28214285714285714 [2021-03-26 14:30:24,322 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 158 transitions. [2021-03-26 14:30:24,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 158 transitions. [2021-03-26 14:30:24,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:24,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 158 transitions. [2021-03-26 14:30:24,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.8) internal successors, (158), 10 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,324 INFO L185 Difference]: Start difference. First operand has 174 places, 144 transitions, 2053 flow. Second operand 10 states and 158 transitions. [2021-03-26 14:30:24,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 155 transitions, 2593 flow [2021-03-26 14:30:24,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 155 transitions, 2569 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:24,385 INFO L241 Difference]: Finished difference. Result has 182 places, 145 transitions, 2181 flow [2021-03-26 14:30:24,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2181, PETRI_PLACES=182, PETRI_TRANSITIONS=145} [2021-03-26 14:30:24,385 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 166 predicate places. [2021-03-26 14:30:24,385 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:24,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 145 transitions, 2181 flow [2021-03-26 14:30:24,386 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 145 transitions, 2181 flow [2021-03-26 14:30:24,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 145 transitions, 2181 flow [2021-03-26 14:30:24,424 INFO L129 PetriNetUnfolder]: 153/410 cut-off events. [2021-03-26 14:30:24,424 INFO L130 PetriNetUnfolder]: For 13188/13214 co-relation queries the response was YES. [2021-03-26 14:30:24,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 410 events. 153/410 cut-off events. For 13188/13214 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2500 event pairs, 14 based on Foata normal form. 19/427 useless extension candidates. Maximal degree in co-relation 3579. Up to 216 conditions per place. [2021-03-26 14:30:24,427 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 14:30:24,635 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:24,635 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:24,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-26 14:30:24,635 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 145 transitions, 2185 flow [2021-03-26 14:30:24,635 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) [2021-03-26 14:30:24,635 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:24,636 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:24,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139 [2021-03-26 14:30:24,837 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:24,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1475810224, now seen corresponding path program 1 times [2021-03-26 14:30:24,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:24,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614461355] [2021-03-26 14:30:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:24,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:24,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:24,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:24,856 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 14:30:24,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:24,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:24,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:24,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:24,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:24,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614461355] [2021-03-26 14:30:24,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:24,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:24,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121406323] [2021-03-26 14:30:24,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:24,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:24,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:24,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:24,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2021-03-26 14:30:24,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 145 transitions, 2185 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:24,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2021-03-26 14:30:24,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:24,988 INFO L129 PetriNetUnfolder]: 154/410 cut-off events. [2021-03-26 14:30:24,988 INFO L130 PetriNetUnfolder]: For 13560/13605 co-relation queries the response was YES. [2021-03-26 14:30:24,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 410 events. 154/410 cut-off events. For 13560/13605 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2460 event pairs, 19 based on Foata normal form. 9/415 useless extension candidates. Maximal degree in co-relation 3910. Up to 269 conditions per place. [2021-03-26 14:30:24,993 INFO L132 encePairwiseOnDemand]: 52/57 looper letters, 120 selfloop transitions, 7 changer transitions 2/146 dead transitions. [2021-03-26 14:30:24,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 146 transitions, 2467 flow [2021-03-26 14:30:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-26 14:30:24,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38596491228070173 [2021-03-26 14:30:24,994 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-26 14:30:24,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-26 14:30:24,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:24,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-26 14:30:24,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,996 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:24,996 INFO L185 Difference]: Start difference. First operand has 180 places, 145 transitions, 2185 flow. Second operand 5 states and 110 transitions. [2021-03-26 14:30:24,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 146 transitions, 2467 flow [2021-03-26 14:30:25,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 146 transitions, 2333 flow, removed 52 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:25,043 INFO L241 Difference]: Finished difference. Result has 179 places, 143 transitions, 2032 flow [2021-03-26 14:30:25,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2051, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2032, PETRI_PLACES=179, PETRI_TRANSITIONS=143} [2021-03-26 14:30:25,043 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 163 predicate places. [2021-03-26 14:30:25,043 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:25,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 143 transitions, 2032 flow [2021-03-26 14:30:25,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 143 transitions, 2032 flow [2021-03-26 14:30:25,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 143 transitions, 2032 flow [2021-03-26 14:30:25,079 INFO L129 PetriNetUnfolder]: 152/397 cut-off events. [2021-03-26 14:30:25,079 INFO L130 PetriNetUnfolder]: For 12022/12048 co-relation queries the response was YES. [2021-03-26 14:30:25,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 397 events. 152/397 cut-off events. For 12022/12048 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2354 event pairs, 13 based on Foata normal form. 19/413 useless extension candidates. Maximal degree in co-relation 3378. Up to 210 conditions per place. [2021-03-26 14:30:25,085 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:25,089 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:25,089 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:25,090 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 14:30:25,090 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 143 transitions, 2032 flow [2021-03-26 14:30:25,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:25,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:25,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-26 14:30:25,090 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:25,091 INFO L82 PathProgramCache]: Analyzing trace with hash -861026781, now seen corresponding path program 1 times [2021-03-26 14:30:25,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:25,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576386268] [2021-03-26 14:30:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:25,117 INFO L142 QuantifierPusher]: treesize reduction 2030, result has 2.1 percent of original size [2021-03-26 14:30:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:25,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:25,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576386268] [2021-03-26 14:30:25,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:25,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:25,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33365034] [2021-03-26 14:30:25,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:25,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:25,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:25,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:25,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 57 [2021-03-26 14:30:25,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 143 transitions, 2032 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:25,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 57 [2021-03-26 14:30:25,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:25,289 INFO L129 PetriNetUnfolder]: 160/412 cut-off events. [2021-03-26 14:30:25,289 INFO L130 PetriNetUnfolder]: For 12745/12773 co-relation queries the response was YES. [2021-03-26 14:30:25,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 412 events. 160/412 cut-off events. For 12745/12773 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2410 event pairs, 17 based on Foata normal form. 2/411 useless extension candidates. Maximal degree in co-relation 3892. Up to 312 conditions per place. [2021-03-26 14:30:25,292 INFO L132 encePairwiseOnDemand]: 49/57 looper letters, 130 selfloop transitions, 15 changer transitions 1/152 dead transitions. [2021-03-26 14:30:25,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 152 transitions, 2584 flow [2021-03-26 14:30:25,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2021-03-26 14:30:25,293 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34502923976608185 [2021-03-26 14:30:25,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 118 transitions. [2021-03-26 14:30:25,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 118 transitions. [2021-03-26 14:30:25,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:25,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 118 transitions. [2021-03-26 14:30:25,293 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) [2021-03-26 14:30:25,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,294 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,294 INFO L185 Difference]: Start difference. First operand has 175 places, 143 transitions, 2032 flow. Second operand 6 states and 118 transitions. [2021-03-26 14:30:25,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 152 transitions, 2584 flow [2021-03-26 14:30:25,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 2568 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:25,330 INFO L241 Difference]: Finished difference. Result has 179 places, 145 transitions, 2111 flow [2021-03-26 14:30:25,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2111, PETRI_PLACES=179, PETRI_TRANSITIONS=145} [2021-03-26 14:30:25,330 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 163 predicate places. [2021-03-26 14:30:25,330 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:25,330 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 145 transitions, 2111 flow [2021-03-26 14:30:25,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 145 transitions, 2111 flow [2021-03-26 14:30:25,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 145 transitions, 2111 flow [2021-03-26 14:30:25,387 INFO L129 PetriNetUnfolder]: 154/399 cut-off events. [2021-03-26 14:30:25,387 INFO L130 PetriNetUnfolder]: For 12458/12488 co-relation queries the response was YES. [2021-03-26 14:30:25,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 399 events. 154/399 cut-off events. For 12458/12488 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2378 event pairs, 15 based on Foata normal form. 18/412 useless extension candidates. Maximal degree in co-relation 3477. Up to 214 conditions per place. [2021-03-26 14:30:25,391 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:25,394 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:25,394 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:25,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 14:30:25,395 INFO L480 AbstractCegarLoop]: Abstraction has has 179 places, 145 transitions, 2111 flow [2021-03-26 14:30:25,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:25,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:25,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-26 14:30:25,395 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:25,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:25,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1785809786, now seen corresponding path program 1 times [2021-03-26 14:30:25,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:25,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464157209] [2021-03-26 14:30:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:25,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,413 INFO L142 QuantifierPusher]: treesize reduction 68, result has 23.6 percent of original size [2021-03-26 14:30:25,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:25,422 INFO L142 QuantifierPusher]: treesize reduction 65, result has 24.4 percent of original size [2021-03-26 14:30:25,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:25,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:25,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:25,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464157209] [2021-03-26 14:30:25,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232732078] [2021-03-26 14:30:25,438 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 [2021-03-26 14:30:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:25,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:30:25,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:25,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:25,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:25,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:25,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,503 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:25,504 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,505 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:25,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:25,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:25,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:25,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:25,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-26 14:30:25,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:30:25,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 866 [2021-03-26 14:30:25,534 INFO L142 QuantifierPusher]: treesize reduction 13462, result has 1.6 percent of original size [2021-03-26 14:30:25,536 INFO L147 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size 160 [2021-03-26 14:30:25,538 INFO L142 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size [2021-03-26 14:30:25,539 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:30:25,711 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-03-26 14:30:25,719 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-26 14:30:25,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:25,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 14:30:25,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:25,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 14:30:25,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,725 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:25,725 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:25,726 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,726 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:25,726 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:25,727 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:25,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,728 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:25,729 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,729 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 14:30:25,732 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:25,732 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:30:25,733 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:30:25,733 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,734 INFO L142 QuantifierPusher]: treesize reduction 86, result has 49.1 percent of original size [2021-03-26 14:30:25,735 INFO L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-03-26 14:30:25,735 INFO L147 QuantifierPusher]: treesize reduction 15, result has 81.5 percent of original size 66 [2021-03-26 14:30:25,736 INFO L142 QuantifierPusher]: treesize reduction 15, result has 81.5 percent of original size [2021-03-26 14:30:25,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:30:25,766 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.7 percent of original size [2021-03-26 14:30:25,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:25,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 14:30:25,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-26 14:30:25,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-26 14:30:25,772 INFO L142 QuantifierPusher]: treesize reduction 330, result has 15.8 percent of original size [2021-03-26 14:30:25,772 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:25,773 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:25,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:25,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:25,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:25,790 INFO L142 QuantifierPusher]: treesize reduction 27, result has 3.6 percent of original size [2021-03-26 14:30:25,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:25,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:25,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:25,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-03-26 14:30:25,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224419866] [2021-03-26 14:30:25,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:30:25,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:25,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:30:25,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:30:25,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2021-03-26 14:30:25,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 145 transitions, 2111 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:25,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:25,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2021-03-26 14:30:25,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:26,130 INFO L129 PetriNetUnfolder]: 164/424 cut-off events. [2021-03-26 14:30:26,130 INFO L130 PetriNetUnfolder]: For 13193/13221 co-relation queries the response was YES. [2021-03-26 14:30:26,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4171 conditions, 424 events. 164/424 cut-off events. For 13193/13221 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2496 event pairs, 17 based on Foata normal form. 5/426 useless extension candidates. Maximal degree in co-relation 4035. Up to 315 conditions per place. [2021-03-26 14:30:26,133 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 134 selfloop transitions, 27 changer transitions 0/165 dead transitions. [2021-03-26 14:30:26,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 165 transitions, 2762 flow [2021-03-26 14:30:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:30:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:30:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 142 transitions. [2021-03-26 14:30:26,134 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27680311890838205 [2021-03-26 14:30:26,134 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 142 transitions. [2021-03-26 14:30:26,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 142 transitions. [2021-03-26 14:30:26,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:26,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 142 transitions. [2021-03-26 14:30:26,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 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) [2021-03-26 14:30:26,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,135 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,135 INFO L185 Difference]: Start difference. First operand has 179 places, 145 transitions, 2111 flow. Second operand 9 states and 142 transitions. [2021-03-26 14:30:26,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 165 transitions, 2762 flow [2021-03-26 14:30:26,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 165 transitions, 2729 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:26,173 INFO L241 Difference]: Finished difference. Result has 187 places, 150 transitions, 2225 flow [2021-03-26 14:30:26,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2078, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2225, PETRI_PLACES=187, PETRI_TRANSITIONS=150} [2021-03-26 14:30:26,174 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 171 predicate places. [2021-03-26 14:30:26,174 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:26,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 150 transitions, 2225 flow [2021-03-26 14:30:26,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 150 transitions, 2225 flow [2021-03-26 14:30:26,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 150 transitions, 2225 flow [2021-03-26 14:30:26,210 INFO L129 PetriNetUnfolder]: 157/411 cut-off events. [2021-03-26 14:30:26,211 INFO L130 PetriNetUnfolder]: For 12870/12891 co-relation queries the response was YES. [2021-03-26 14:30:26,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3776 conditions, 411 events. 157/411 cut-off events. For 12870/12891 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2490 event pairs, 16 based on Foata normal form. 13/421 useless extension candidates. Maximal degree in co-relation 3645. Up to 221 conditions per place. [2021-03-26 14:30:26,216 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 14:30:26,602 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:30:26,602 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:30:26,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 428 [2021-03-26 14:30:26,602 INFO L480 AbstractCegarLoop]: Abstraction has has 186 places, 149 transitions, 2242 flow [2021-03-26 14:30:26,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:26,602 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:26,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:26,811 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:26,812 INFO L82 PathProgramCache]: Analyzing trace with hash -184844465, now seen corresponding path program 1 times [2021-03-26 14:30:26,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:26,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045380908] [2021-03-26 14:30:26,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:26,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:26,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:26,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:26,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:26,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:26,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:26,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:26,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:26,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:26,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045380908] [2021-03-26 14:30:26,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:26,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:26,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422304023] [2021-03-26 14:30:26,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:26,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:26,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:26,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 59 [2021-03-26 14:30:26,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 149 transitions, 2242 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:26,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 59 [2021-03-26 14:30:26,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:26,983 INFO L129 PetriNetUnfolder]: 161/424 cut-off events. [2021-03-26 14:30:26,984 INFO L130 PetriNetUnfolder]: For 14104/14141 co-relation queries the response was YES. [2021-03-26 14:30:26,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4214 conditions, 424 events. 161/424 cut-off events. For 14104/14141 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2528 event pairs, 19 based on Foata normal form. 3/423 useless extension candidates. Maximal degree in co-relation 4076. Up to 228 conditions per place. [2021-03-26 14:30:26,987 INFO L132 encePairwiseOnDemand]: 43/59 looper letters, 110 selfloop transitions, 30 changer transitions 1/158 dead transitions. [2021-03-26 14:30:26,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 158 transitions, 2786 flow [2021-03-26 14:30:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2021-03-26 14:30:26,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3728813559322034 [2021-03-26 14:30:26,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 132 transitions. [2021-03-26 14:30:26,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 132 transitions. [2021-03-26 14:30:26,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:26,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 132 transitions. [2021-03-26 14:30:26,988 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) [2021-03-26 14:30:26,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,989 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:26,989 INFO L185 Difference]: Start difference. First operand has 186 places, 149 transitions, 2242 flow. Second operand 6 states and 132 transitions. [2021-03-26 14:30:26,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 158 transitions, 2786 flow [2021-03-26 14:30:27,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 158 transitions, 2676 flow, removed 28 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:27,032 INFO L241 Difference]: Finished difference. Result has 186 places, 147 transitions, 2160 flow [2021-03-26 14:30:27,033 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2160, PETRI_PLACES=186, PETRI_TRANSITIONS=147} [2021-03-26 14:30:27,033 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 170 predicate places. [2021-03-26 14:30:27,033 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:27,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 147 transitions, 2160 flow [2021-03-26 14:30:27,033 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 147 transitions, 2160 flow [2021-03-26 14:30:27,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 185 places, 147 transitions, 2160 flow [2021-03-26 14:30:27,069 INFO L129 PetriNetUnfolder]: 161/422 cut-off events. [2021-03-26 14:30:27,069 INFO L130 PetriNetUnfolder]: For 13637/13667 co-relation queries the response was YES. [2021-03-26 14:30:27,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3901 conditions, 422 events. 161/422 cut-off events. For 13637/13667 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2579 event pairs, 18 based on Foata normal form. 13/430 useless extension candidates. Maximal degree in co-relation 3769. Up to 227 conditions per place. [2021-03-26 14:30:27,073 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 14:30:27,076 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:27,077 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:27,077 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-26 14:30:27,077 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 147 transitions, 2160 flow [2021-03-26 14:30:27,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:27,077 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:27,077 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:27,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-26 14:30:27,077 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:27,078 INFO L82 PathProgramCache]: Analyzing trace with hash -150871469, now seen corresponding path program 1 times [2021-03-26 14:30:27,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:27,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326830769] [2021-03-26 14:30:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:27,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:27,118 INFO L142 QuantifierPusher]: treesize reduction 403, result has 14.1 percent of original size [2021-03-26 14:30:27,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:30:27,138 INFO L142 QuantifierPusher]: treesize reduction 7, result has 66.7 percent of original size [2021-03-26 14:30:27,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:27,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:27,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326830769] [2021-03-26 14:30:27,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009869086] [2021-03-26 14:30:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:27,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-26 14:30:27,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:27,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:27,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:27,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:27,192 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 14:30:27,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:27,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:27,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:27,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-03-26 14:30:27,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:30:27,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 501 [2021-03-26 14:30:27,237 INFO L142 QuantifierPusher]: treesize reduction 6063, result has 10.8 percent of original size [2021-03-26 14:30:27,240 INFO L147 QuantifierPusher]: treesize reduction 31, result has 95.7 percent of original size 688 [2021-03-26 14:30:27,242 INFO L142 QuantifierPusher]: treesize reduction 31, result has 95.7 percent of original size [2021-03-26 14:30:27,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 688 [2021-03-26 14:30:27,631 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-03-26 14:30:27,633 INFO L142 QuantifierPusher]: treesize reduction 179, result has 66.2 percent of original size [2021-03-26 14:30:27,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:27,635 INFO L147 QuantifierPusher]: treesize reduction 39, result has 88.5 percent of original size 300 [2021-03-26 14:30:27,636 INFO L142 QuantifierPusher]: treesize reduction 39, result has 88.5 percent of original size [2021-03-26 14:30:27,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 638 [2021-03-26 14:30:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 639 [2021-03-26 14:30:27,656 INFO L142 QuantifierPusher]: treesize reduction 32304, result has 0.4 percent of original size [2021-03-26 14:30:27,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,658 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:27,659 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:27,660 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,661 INFO L142 QuantifierPusher]: treesize reduction 120, result has 48.1 percent of original size [2021-03-26 14:30:27,661 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:27,665 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,666 INFO L142 QuantifierPusher]: treesize reduction 64, result has 39.6 percent of original size [2021-03-26 14:30:27,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:27,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:27,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:27,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:27,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:27,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:27,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:27,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:27,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,692 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:30:27,692 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:27,693 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,694 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:27,694 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:27,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:27,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:27,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 14:30:27,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720999485] [2021-03-26 14:30:27,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:30:27,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:27,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:30:27,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:30:27,720 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 59 [2021-03-26 14:30:27,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 147 transitions, 2160 flow. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 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) [2021-03-26 14:30:27,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:27,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 59 [2021-03-26 14:30:27,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:28,045 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-03-26 14:30:28,160 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2021-03-26 14:30:28,331 INFO L129 PetriNetUnfolder]: 166/435 cut-off events. [2021-03-26 14:30:28,331 INFO L130 PetriNetUnfolder]: For 14776/14797 co-relation queries the response was YES. [2021-03-26 14:30:28,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4380 conditions, 435 events. 166/435 cut-off events. For 14776/14797 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2597 event pairs, 20 based on Foata normal form. 2/434 useless extension candidates. Maximal degree in co-relation 4238. Up to 327 conditions per place. [2021-03-26 14:30:28,334 INFO L132 encePairwiseOnDemand]: 47/59 looper letters, 126 selfloop transitions, 26 changer transitions 3/160 dead transitions. [2021-03-26 14:30:28,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 160 transitions, 2719 flow [2021-03-26 14:30:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:30:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:30:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2021-03-26 14:30:28,335 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2749529190207156 [2021-03-26 14:30:28,335 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 146 transitions. [2021-03-26 14:30:28,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 146 transitions. [2021-03-26 14:30:28,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:28,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 146 transitions. [2021-03-26 14:30:28,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 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) [2021-03-26 14:30:28,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:28,336 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:28,336 INFO L185 Difference]: Start difference. First operand has 185 places, 147 transitions, 2160 flow. Second operand 9 states and 146 transitions. [2021-03-26 14:30:28,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 160 transitions, 2719 flow [2021-03-26 14:30:28,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 160 transitions, 2682 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:28,388 INFO L241 Difference]: Finished difference. Result has 192 places, 147 transitions, 2189 flow [2021-03-26 14:30:28,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2189, PETRI_PLACES=192, PETRI_TRANSITIONS=147} [2021-03-26 14:30:28,388 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 176 predicate places. [2021-03-26 14:30:28,388 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:28,388 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 147 transitions, 2189 flow [2021-03-26 14:30:28,388 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 147 transitions, 2189 flow [2021-03-26 14:30:28,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 147 transitions, 2189 flow [2021-03-26 14:30:28,425 INFO L129 PetriNetUnfolder]: 159/417 cut-off events. [2021-03-26 14:30:28,425 INFO L130 PetriNetUnfolder]: For 13805/13823 co-relation queries the response was YES. [2021-03-26 14:30:28,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3937 conditions, 417 events. 159/417 cut-off events. For 13805/13823 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2524 event pairs, 18 based on Foata normal form. 11/425 useless extension candidates. Maximal degree in co-relation 3800. Up to 224 conditions per place. [2021-03-26 14:30:28,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:28,579 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:28,579 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:28,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-26 14:30:28,580 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 147 transitions, 2207 flow [2021-03-26 14:30:28,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 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) [2021-03-26 14:30:28,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:28,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:28,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156 [2021-03-26 14:30:28,785 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:28,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:28,786 INFO L82 PathProgramCache]: Analyzing trace with hash -203314885, now seen corresponding path program 1 times [2021-03-26 14:30:28,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:28,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202959054] [2021-03-26 14:30:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:28,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,806 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:30:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:28,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:28,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:28,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202959054] [2021-03-26 14:30:28,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562078399] [2021-03-26 14:30:28,835 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 [2021-03-26 14:30:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:28,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:30:28,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:28,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,889 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:28,890 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:28,890 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:28,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:28,902 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:30:28,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:28,904 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-26 14:30:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:28,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:28,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:28,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:30:28,983 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 14:30:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:28,987 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:28,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:28,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:28,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 14:30:28,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664843932] [2021-03-26 14:30:28,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 14:30:28,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:28,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 14:30:28,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 14:30:28,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2021-03-26 14:30:28,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 147 transitions, 2207 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:28,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:28,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2021-03-26 14:30:28,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:29,223 INFO L129 PetriNetUnfolder]: 164/426 cut-off events. [2021-03-26 14:30:29,223 INFO L130 PetriNetUnfolder]: For 15352/15401 co-relation queries the response was YES. [2021-03-26 14:30:29,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4357 conditions, 426 events. 164/426 cut-off events. For 15352/15401 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2555 event pairs, 18 based on Foata normal form. 12/434 useless extension candidates. Maximal degree in co-relation 4213. Up to 232 conditions per place. [2021-03-26 14:30:29,227 INFO L132 encePairwiseOnDemand]: 48/60 looper letters, 102 selfloop transitions, 45 changer transitions 1/165 dead transitions. [2021-03-26 14:30:29,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 165 transitions, 2849 flow [2021-03-26 14:30:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2021-03-26 14:30:29,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3523809523809524 [2021-03-26 14:30:29,228 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 148 transitions. [2021-03-26 14:30:29,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 148 transitions. [2021-03-26 14:30:29,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:29,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 148 transitions. [2021-03-26 14:30:29,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,230 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,230 INFO L185 Difference]: Start difference. First operand has 189 places, 147 transitions, 2207 flow. Second operand 7 states and 148 transitions. [2021-03-26 14:30:29,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 165 transitions, 2849 flow [2021-03-26 14:30:29,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 165 transitions, 2800 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:29,281 INFO L241 Difference]: Finished difference. Result has 191 places, 148 transitions, 2275 flow [2021-03-26 14:30:29,281 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2275, PETRI_PLACES=191, PETRI_TRANSITIONS=148} [2021-03-26 14:30:29,281 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 175 predicate places. [2021-03-26 14:30:29,281 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:29,281 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 148 transitions, 2275 flow [2021-03-26 14:30:29,281 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 148 transitions, 2275 flow [2021-03-26 14:30:29,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 148 transitions, 2275 flow [2021-03-26 14:30:29,320 INFO L129 PetriNetUnfolder]: 163/421 cut-off events. [2021-03-26 14:30:29,320 INFO L130 PetriNetUnfolder]: For 14154/14166 co-relation queries the response was YES. [2021-03-26 14:30:29,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4004 conditions, 421 events. 163/421 cut-off events. For 14154/14166 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2542 event pairs, 13 based on Foata normal form. 7/425 useless extension candidates. Maximal degree in co-relation 3869. Up to 228 conditions per place. [2021-03-26 14:30:29,324 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 14:30:29,327 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:29,327 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:29,327 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-26 14:30:29,328 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 148 transitions, 2275 flow [2021-03-26 14:30:29,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:29,328 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:29,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:29,528 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:29,529 INFO L82 PathProgramCache]: Analyzing trace with hash -19016019, now seen corresponding path program 1 times [2021-03-26 14:30:29,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:29,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625404921] [2021-03-26 14:30:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:29,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:29,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:29,550 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 14:30:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:29,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:29,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:29,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625404921] [2021-03-26 14:30:29,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:29,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:29,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869317881] [2021-03-26 14:30:29,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:29,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:29,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:29,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:29,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2021-03-26 14:30:29,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 148 transitions, 2275 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:29,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2021-03-26 14:30:29,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:29,691 INFO L129 PetriNetUnfolder]: 161/428 cut-off events. [2021-03-26 14:30:29,691 INFO L130 PetriNetUnfolder]: For 14621/14658 co-relation queries the response was YES. [2021-03-26 14:30:29,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4300 conditions, 428 events. 161/428 cut-off events. For 14621/14658 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2585 event pairs, 18 based on Foata normal form. 3/427 useless extension candidates. Maximal degree in co-relation 4158. Up to 259 conditions per place. [2021-03-26 14:30:29,695 INFO L132 encePairwiseOnDemand]: 54/60 looper letters, 113 selfloop transitions, 20 changer transitions 2/152 dead transitions. [2021-03-26 14:30:29,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 152 transitions, 2628 flow [2021-03-26 14:30:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-26 14:30:29,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2021-03-26 14:30:29,696 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-26 14:30:29,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-26 14:30:29,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:29,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-26 14:30:29,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,697 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,697 INFO L185 Difference]: Start difference. First operand has 191 places, 148 transitions, 2275 flow. Second operand 5 states and 110 transitions. [2021-03-26 14:30:29,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 152 transitions, 2628 flow [2021-03-26 14:30:29,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 152 transitions, 2538 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:29,767 INFO L241 Difference]: Finished difference. Result has 192 places, 146 transitions, 2183 flow [2021-03-26 14:30:29,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2185, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2183, PETRI_PLACES=192, PETRI_TRANSITIONS=146} [2021-03-26 14:30:29,767 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 176 predicate places. [2021-03-26 14:30:29,767 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:29,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 146 transitions, 2183 flow [2021-03-26 14:30:29,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 146 transitions, 2183 flow [2021-03-26 14:30:29,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 190 places, 146 transitions, 2183 flow [2021-03-26 14:30:29,820 INFO L129 PetriNetUnfolder]: 161/420 cut-off events. [2021-03-26 14:30:29,820 INFO L130 PetriNetUnfolder]: For 13940/13967 co-relation queries the response was YES. [2021-03-26 14:30:29,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3955 conditions, 420 events. 161/420 cut-off events. For 13940/13967 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2546 event pairs, 17 based on Foata normal form. 11/426 useless extension candidates. Maximal degree in co-relation 3780. Up to 230 conditions per place. [2021-03-26 14:30:29,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:29,832 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:29,832 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:29,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 14:30:29,832 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 146 transitions, 2183 flow [2021-03-26 14:30:29,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:29,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:29,832 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:29,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-26 14:30:29,833 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash -115155837, now seen corresponding path program 2 times [2021-03-26 14:30:29,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:29,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073377752] [2021-03-26 14:30:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:29,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:29,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:29,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:29,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:29,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:29,944 INFO L142 QuantifierPusher]: treesize reduction 1324, result has 12.0 percent of original size [2021-03-26 14:30:29,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-03-26 14:30:30,008 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:30,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:30,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:30,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073377752] [2021-03-26 14:30:30,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936151255] [2021-03-26 14:30:30,029 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 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 [2021-03-26 14:30:30,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:30,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:30,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 14:30:30,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:30,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,073 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:30,073 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:30,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:30,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 14:30:30,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:30,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 549 [2021-03-26 14:30:30,080 INFO L142 QuantifierPusher]: treesize reduction 643, result has 13.7 percent of original size [2021-03-26 14:30:30,081 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-26 14:30:30,082 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-26 14:30:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:30,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:30:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:30:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:30:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,132 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:30,133 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:30,133 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,134 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:30,134 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:30,134 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:30:30,136 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:30,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,137 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-26 14:30:30,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:30:30,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:30,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:30,220 INFO L142 QuantifierPusher]: treesize reduction 7, result has 93.7 percent of original size [2021-03-26 14:30:30,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:30:30,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:30,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:30:30,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,225 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:30,225 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,226 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:30,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:30,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:30:30,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:30:30,284 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.4 percent of original size [2021-03-26 14:30:30,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:30,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:30:30,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-03-26 14:30:30,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-03-26 14:30:30,290 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.2 percent of original size [2021-03-26 14:30:30,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,292 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:30,292 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:30,293 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,294 INFO L142 QuantifierPusher]: treesize reduction 100, result has 58.7 percent of original size [2021-03-26 14:30:30,295 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:30,295 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,296 INFO L142 QuantifierPusher]: treesize reduction 120, result has 35.8 percent of original size [2021-03-26 14:30:30,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:30,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:30,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:30,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:30,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:30,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:30,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:30,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:30,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:30,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,336 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-26 14:30:30,337 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:30,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,338 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-26 14:30:30,338 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-26 14:30:30,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:30,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:30,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:30,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:30:30,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187052781] [2021-03-26 14:30:30,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:30:30,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:30,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:30:30,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:30:30,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2021-03-26 14:30:30,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 146 transitions, 2183 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:30,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:30,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2021-03-26 14:30:30,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:30,780 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-03-26 14:30:31,124 INFO L129 PetriNetUnfolder]: 167/438 cut-off events. [2021-03-26 14:30:31,125 INFO L130 PetriNetUnfolder]: For 14834/14862 co-relation queries the response was YES. [2021-03-26 14:30:31,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 438 events. 167/438 cut-off events. For 14834/14862 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2635 event pairs, 21 based on Foata normal form. 8/443 useless extension candidates. Maximal degree in co-relation 4289. Up to 359 conditions per place. [2021-03-26 14:30:31,128 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 133 selfloop transitions, 15 changer transitions 1/153 dead transitions. [2021-03-26 14:30:31,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 153 transitions, 2565 flow [2021-03-26 14:30:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:30:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:30:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 136 transitions. [2021-03-26 14:30:31,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2518518518518518 [2021-03-26 14:30:31,129 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 136 transitions. [2021-03-26 14:30:31,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 136 transitions. [2021-03-26 14:30:31,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:31,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 136 transitions. [2021-03-26 14:30:31,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 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) [2021-03-26 14:30:31,130 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) [2021-03-26 14:30:31,131 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) [2021-03-26 14:30:31,131 INFO L185 Difference]: Start difference. First operand has 190 places, 146 transitions, 2183 flow. Second operand 9 states and 136 transitions. [2021-03-26 14:30:31,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 153 transitions, 2565 flow [2021-03-26 14:30:31,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 153 transitions, 2523 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:31,180 INFO L241 Difference]: Finished difference. Result has 198 places, 152 transitions, 2265 flow [2021-03-26 14:30:31,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2141, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2265, PETRI_PLACES=198, PETRI_TRANSITIONS=152} [2021-03-26 14:30:31,180 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 182 predicate places. [2021-03-26 14:30:31,180 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:31,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 152 transitions, 2265 flow [2021-03-26 14:30:31,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 152 transitions, 2265 flow [2021-03-26 14:30:31,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 152 transitions, 2265 flow [2021-03-26 14:30:31,234 INFO L129 PetriNetUnfolder]: 160/421 cut-off events. [2021-03-26 14:30:31,234 INFO L130 PetriNetUnfolder]: For 14016/14040 co-relation queries the response was YES. [2021-03-26 14:30:31,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 421 events. 160/421 cut-off events. For 14016/14040 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2554 event pairs, 17 based on Foata normal form. 13/431 useless extension candidates. Maximal degree in co-relation 3837. Up to 229 conditions per place. [2021-03-26 14:30:31,238 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 14:30:31,893 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:31,893 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:30:31,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 713 [2021-03-26 14:30:31,893 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 150 transitions, 2258 flow [2021-03-26 14:30:31,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:31,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:31,894 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:32,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:32,094 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:32,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1244203971, now seen corresponding path program 3 times [2021-03-26 14:30:32,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:32,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680968241] [2021-03-26 14:30:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:32,127 INFO L142 QuantifierPusher]: treesize reduction 58, result has 66.3 percent of original size [2021-03-26 14:30:32,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-26 14:30:32,172 INFO L142 QuantifierPusher]: treesize reduction 68, result has 58.8 percent of original size [2021-03-26 14:30:32,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:30:32,251 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:30:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:32,269 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:32,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:32,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:32,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680968241] [2021-03-26 14:30:32,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566508359] [2021-03-26 14:30:32,289 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 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 [2021-03-26 14:30:32,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:30:32,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:32,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:30:32,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:32,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:32,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:32,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,335 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:32,336 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 14:30:32,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:32,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 549 [2021-03-26 14:30:32,342 INFO L142 QuantifierPusher]: treesize reduction 643, result has 13.7 percent of original size [2021-03-26 14:30:32,343 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-26 14:30:32,343 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-26 14:30:32,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:32,382 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.1 percent of original size [2021-03-26 14:30:32,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:32,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 14:30:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,386 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:32,386 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,386 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:32,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:32,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:30:32,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:30:32,433 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.6 percent of original size [2021-03-26 14:30:32,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-26 14:30:32,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 14:30:32,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:30:32,440 INFO L142 QuantifierPusher]: treesize reduction 46, result has 81.8 percent of original size [2021-03-26 14:30:32,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,441 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:32,442 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:32,442 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,444 INFO L142 QuantifierPusher]: treesize reduction 214, result has 42.3 percent of original size [2021-03-26 14:30:32,445 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:32,445 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,447 INFO L142 QuantifierPusher]: treesize reduction 140, result has 34.6 percent of original size [2021-03-26 14:30:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:32,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:32,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:32,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:32,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:30:32,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,499 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:30:32,499 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:32,499 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,500 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 14:30:32,501 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-26 14:30:32,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:32,538 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:30:32,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:32,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:32,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:32,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:32,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,544 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:30:32,545 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:32,545 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,546 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:30:32,547 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:32,547 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:32,548 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:30:32,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:32,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:32,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:32,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:32,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:30:32,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194721422] [2021-03-26 14:30:32,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:30:32,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:32,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:30:32,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:30:32,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-26 14:30:32,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 150 transitions, 2258 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:32,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:32,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-26 14:30:32,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:32,766 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-03-26 14:30:33,066 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2021-03-26 14:30:33,620 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-26 14:30:33,826 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-03-26 14:30:33,862 INFO L129 PetriNetUnfolder]: 174/458 cut-off events. [2021-03-26 14:30:33,862 INFO L130 PetriNetUnfolder]: For 15587/15597 co-relation queries the response was YES. [2021-03-26 14:30:33,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4708 conditions, 458 events. 174/458 cut-off events. For 15587/15597 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2801 event pairs, 22 based on Foata normal form. 3/458 useless extension candidates. Maximal degree in co-relation 4556. Up to 361 conditions per place. [2021-03-26 14:30:33,866 INFO L132 encePairwiseOnDemand]: 49/64 looper letters, 135 selfloop transitions, 26 changer transitions 3/168 dead transitions. [2021-03-26 14:30:33,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 168 transitions, 3006 flow [2021-03-26 14:30:33,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:30:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:30:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 182 transitions. [2021-03-26 14:30:33,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23697916666666666 [2021-03-26 14:30:33,877 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 182 transitions. [2021-03-26 14:30:33,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 182 transitions. [2021-03-26 14:30:33,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:33,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 182 transitions. [2021-03-26 14:30:33,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 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) [2021-03-26 14:30:33,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 64.0) internal successors, (832), 13 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:33,878 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 64.0) internal successors, (832), 13 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:33,878 INFO L185 Difference]: Start difference. First operand has 195 places, 150 transitions, 2258 flow. Second operand 12 states and 182 transitions. [2021-03-26 14:30:33,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 168 transitions, 3006 flow [2021-03-26 14:30:33,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 168 transitions, 2928 flow, removed 39 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:33,951 INFO L241 Difference]: Finished difference. Result has 210 places, 160 transitions, 2513 flow [2021-03-26 14:30:33,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2196, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2513, PETRI_PLACES=210, PETRI_TRANSITIONS=160} [2021-03-26 14:30:33,952 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 194 predicate places. [2021-03-26 14:30:33,952 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:33,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 160 transitions, 2513 flow [2021-03-26 14:30:33,952 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 160 transitions, 2513 flow [2021-03-26 14:30:33,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 160 transitions, 2513 flow [2021-03-26 14:30:34,010 INFO L129 PetriNetUnfolder]: 167/451 cut-off events. [2021-03-26 14:30:34,010 INFO L130 PetriNetUnfolder]: For 16862/16874 co-relation queries the response was YES. [2021-03-26 14:30:34,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4354 conditions, 451 events. 167/451 cut-off events. For 16862/16874 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2823 event pairs, 18 based on Foata normal form. 7/455 useless extension candidates. Maximal degree in co-relation 4202. Up to 241 conditions per place. [2021-03-26 14:30:34,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-26 14:30:34,022 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:34,022 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:34,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-26 14:30:34,022 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 160 transitions, 2513 flow [2021-03-26 14:30:34,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:34,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:34,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:34,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:34,244 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:34,244 INFO L82 PathProgramCache]: Analyzing trace with hash 460339912, now seen corresponding path program 1 times [2021-03-26 14:30:34,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:34,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7270252] [2021-03-26 14:30:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:34,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:34,262 INFO L142 QuantifierPusher]: treesize reduction 214, result has 10.5 percent of original size [2021-03-26 14:30:34,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:34,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:34,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7270252] [2021-03-26 14:30:34,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:34,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:30:34,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39571480] [2021-03-26 14:30:34,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:30:34,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:34,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:30:34,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:30:34,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2021-03-26 14:30:34,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 160 transitions, 2513 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:34,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:34,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2021-03-26 14:30:34,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:34,430 INFO L129 PetriNetUnfolder]: 169/446 cut-off events. [2021-03-26 14:30:34,430 INFO L130 PetriNetUnfolder]: For 17015/17062 co-relation queries the response was YES. [2021-03-26 14:30:34,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4675 conditions, 446 events. 169/446 cut-off events. For 17015/17062 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2713 event pairs, 21 based on Foata normal form. 9/453 useless extension candidates. Maximal degree in co-relation 4514. Up to 294 conditions per place. [2021-03-26 14:30:34,437 INFO L132 encePairwiseOnDemand]: 57/64 looper letters, 132 selfloop transitions, 7 changer transitions 1/159 dead transitions. [2021-03-26 14:30:34,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 159 transitions, 2783 flow [2021-03-26 14:30:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:30:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:30:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2021-03-26 14:30:34,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3671875 [2021-03-26 14:30:34,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 94 transitions. [2021-03-26 14:30:34,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 94 transitions. [2021-03-26 14:30:34,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:34,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 94 transitions. [2021-03-26 14:30:34,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:34,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:34,441 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:34,442 INFO L185 Difference]: Start difference. First operand has 209 places, 160 transitions, 2513 flow. Second operand 4 states and 94 transitions. [2021-03-26 14:30:34,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 159 transitions, 2783 flow [2021-03-26 14:30:34,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 159 transitions, 2620 flow, removed 77 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:34,517 INFO L241 Difference]: Finished difference. Result has 209 places, 158 transitions, 2339 flow [2021-03-26 14:30:34,517 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2339, PETRI_PLACES=209, PETRI_TRANSITIONS=158} [2021-03-26 14:30:34,517 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 193 predicate places. [2021-03-26 14:30:34,517 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:34,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 158 transitions, 2339 flow [2021-03-26 14:30:34,517 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 158 transitions, 2339 flow [2021-03-26 14:30:34,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 207 places, 158 transitions, 2339 flow [2021-03-26 14:30:34,557 INFO L129 PetriNetUnfolder]: 166/450 cut-off events. [2021-03-26 14:30:34,557 INFO L130 PetriNetUnfolder]: For 16489/16501 co-relation queries the response was YES. [2021-03-26 14:30:34,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4237 conditions, 450 events. 166/450 cut-off events. For 16489/16501 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2825 event pairs, 20 based on Foata normal form. 7/453 useless extension candidates. Maximal degree in co-relation 4086. Up to 233 conditions per place. [2021-03-26 14:30:34,561 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-26 14:30:34,565 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:34,565 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:34,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 14:30:34,566 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 158 transitions, 2339 flow [2021-03-26 14:30:34,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:34,566 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:34,566 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:34,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-26 14:30:34,566 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:34,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2059726183, now seen corresponding path program 2 times [2021-03-26 14:30:34,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:34,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116993662] [2021-03-26 14:30:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:34,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:34,598 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-26 14:30:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:34,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:34,642 INFO L142 QuantifierPusher]: treesize reduction 875, result has 25.0 percent of original size [2021-03-26 14:30:34,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-03-26 14:30:34,748 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:34,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:34,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:34,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116993662] [2021-03-26 14:30:34,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798875924] [2021-03-26 14:30:34,775 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 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 [2021-03-26 14:30:34,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:34,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:34,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:30:34,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:34,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:34,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:34,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:34,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:34,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,829 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:34,831 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,831 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:34,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,851 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 14:30:34,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:34,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:34,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:34,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,855 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:34,855 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,856 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:34,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 14:30:34,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1481 [2021-03-26 14:30:34,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:34,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:34,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1681 [2021-03-26 14:30:34,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4270 [2021-03-26 14:30:34,896 INFO L142 QuantifierPusher]: treesize reduction 21716, result has 0.8 percent of original size [2021-03-26 14:30:34,898 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:30:34,899 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-26 14:30:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 14:30:35,010 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-26 14:30:35,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:35,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 14:30:35,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:35,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 14:30:35,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,017 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:35,017 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:35,017 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,018 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:35,018 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:35,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,019 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 14:30:35,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,020 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:35,020 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,021 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:30:35,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:35,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:35,023 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size 89 [2021-03-26 14:30:35,023 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size [2021-03-26 14:30:35,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:30:35,090 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.8 percent of original size [2021-03-26 14:30:35,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:35,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:30:35,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 14:30:35,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 14:30:35,097 INFO L142 QuantifierPusher]: treesize reduction 231, result has 43.2 percent of original size [2021-03-26 14:30:35,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,099 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:35,100 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:30:35,101 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,102 INFO L142 QuantifierPusher]: treesize reduction 144, result has 52.2 percent of original size [2021-03-26 14:30:35,103 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:30:35,104 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,105 INFO L142 QuantifierPusher]: treesize reduction 152, result has 24.8 percent of original size [2021-03-26 14:30:35,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:35,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:35,138 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:35,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:35,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:35,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:35,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:35,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:35,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,144 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:35,144 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:35,144 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,145 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:35,145 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:35,146 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:35,146 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 14:30:35,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:35,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:35,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:35,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:30:35,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318992163] [2021-03-26 14:30:35,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:30:35,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:35,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:30:35,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:30:35,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-26 14:30:35,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 158 transitions, 2339 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:35,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:35,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-26 14:30:35,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:35,418 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-26 14:30:36,410 INFO L129 PetriNetUnfolder]: 177/488 cut-off events. [2021-03-26 14:30:36,411 INFO L130 PetriNetUnfolder]: For 18737/18747 co-relation queries the response was YES. [2021-03-26 14:30:36,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5099 conditions, 488 events. 177/488 cut-off events. For 18737/18747 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3123 event pairs, 10 based on Foata normal form. 8/492 useless extension candidates. Maximal degree in co-relation 4941. Up to 258 conditions per place. [2021-03-26 14:30:36,415 INFO L132 encePairwiseOnDemand]: 50/64 looper letters, 130 selfloop transitions, 62 changer transitions 4/200 dead transitions. [2021-03-26 14:30:36,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 200 transitions, 3916 flow [2021-03-26 14:30:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 14:30:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 14:30:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 249 transitions. [2021-03-26 14:30:36,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22886029411764705 [2021-03-26 14:30:36,416 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 249 transitions. [2021-03-26 14:30:36,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 249 transitions. [2021-03-26 14:30:36,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:36,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 249 transitions. [2021-03-26 14:30:36,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 14.647058823529411) internal successors, (249), 17 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:36,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 64.0) internal successors, (1152), 18 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:36,418 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 64.0) internal successors, (1152), 18 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:36,418 INFO L185 Difference]: Start difference. First operand has 207 places, 158 transitions, 2339 flow. Second operand 17 states and 249 transitions. [2021-03-26 14:30:36,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 200 transitions, 3916 flow [2021-03-26 14:30:36,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 200 transitions, 3902 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 14:30:36,477 INFO L241 Difference]: Finished difference. Result has 227 places, 172 transitions, 2947 flow [2021-03-26 14:30:36,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2325, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2947, PETRI_PLACES=227, PETRI_TRANSITIONS=172} [2021-03-26 14:30:36,478 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 211 predicate places. [2021-03-26 14:30:36,478 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:36,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 172 transitions, 2947 flow [2021-03-26 14:30:36,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 172 transitions, 2947 flow [2021-03-26 14:30:36,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 172 transitions, 2947 flow [2021-03-26 14:30:36,524 INFO L129 PetriNetUnfolder]: 173/481 cut-off events. [2021-03-26 14:30:36,524 INFO L130 PetriNetUnfolder]: For 23293/23317 co-relation queries the response was YES. [2021-03-26 14:30:36,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5090 conditions, 481 events. 173/481 cut-off events. For 23293/23317 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3090 event pairs, 17 based on Foata normal form. 3/480 useless extension candidates. Maximal degree in co-relation 4926. Up to 252 conditions per place. [2021-03-26 14:30:36,529 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 14:30:36,533 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:36,533 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:36,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-26 14:30:36,534 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 172 transitions, 2947 flow [2021-03-26 14:30:36,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:36,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:36,534 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:36,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable179 [2021-03-26 14:30:36,734 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:36,735 INFO L82 PathProgramCache]: Analyzing trace with hash -704282687, now seen corresponding path program 3 times [2021-03-26 14:30:36,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:36,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68195670] [2021-03-26 14:30:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:36,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:36,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:36,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-26 14:30:36,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:36,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:36,838 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-26 14:30:36,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:36,867 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-26 14:30:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:36,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:36,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68195670] [2021-03-26 14:30:36,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306307998] [2021-03-26 14:30:36,895 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 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 [2021-03-26 14:30:36,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:30:36,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:36,930 WARN L261 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-26 14:30:36,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:36,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:36,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:36,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:36,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:36,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:36,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:36,939 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 14:30:36,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:36,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:36,975 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.1 percent of original size [2021-03-26 14:30:36,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:36,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:36,977 INFO L147 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size 44 [2021-03-26 14:30:36,978 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.9 percent of original size [2021-03-26 14:30:36,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:36,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:36,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:30:36,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,980 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:36,980 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:36,980 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:36,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:36,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:36,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:36,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:37,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:37,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:37,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:37,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:37,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 14:30:37,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1495 [2021-03-26 14:30:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1681 [2021-03-26 14:30:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4284 [2021-03-26 14:30:37,019 INFO L142 QuantifierPusher]: treesize reduction 21730, result has 0.8 percent of original size [2021-03-26 14:30:37,021 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:30:37,021 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-26 14:30:37,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 14:30:37,095 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.9 percent of original size [2021-03-26 14:30:37,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-26 14:30:37,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-03-26 14:30:37,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-03-26 14:30:37,101 INFO L142 QuantifierPusher]: treesize reduction 214, result has 55.2 percent of original size [2021-03-26 14:30:37,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,108 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:37,109 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:30:37,110 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,111 INFO L142 QuantifierPusher]: treesize reduction 272, result has 42.7 percent of original size [2021-03-26 14:30:37,112 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:30:37,112 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,114 INFO L142 QuantifierPusher]: treesize reduction 164, result has 39.7 percent of original size [2021-03-26 14:30:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:37,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:30:37,155 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:30:37,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:37,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:37,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:37,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:37,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:30:37,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,172 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:30:37,173 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:37,173 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,175 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:30:37,175 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 2, 1] term [2021-03-26 14:30:37,175 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:37,176 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,177 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-03-26 14:30:37,177 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-26 14:30:37,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:37,207 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:37,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:37,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:37,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:37,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:37,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,213 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:37,213 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:37,213 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,214 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:37,214 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:30:37,215 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:37,215 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,216 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:37,216 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:37,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:37,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:37,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:37,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:30:37,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455300651] [2021-03-26 14:30:37,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:30:37,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:37,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:30:37,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:30:37,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-26 14:30:37,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 172 transitions, 2947 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:37,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:37,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-26 14:30:37,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:37,389 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-03-26 14:30:37,548 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-26 14:30:38,440 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2021-03-26 14:30:38,491 INFO L129 PetriNetUnfolder]: 184/512 cut-off events. [2021-03-26 14:30:38,492 INFO L130 PetriNetUnfolder]: For 25902/25930 co-relation queries the response was YES. [2021-03-26 14:30:38,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5963 conditions, 512 events. 184/512 cut-off events. For 25902/25930 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3319 event pairs, 10 based on Foata normal form. 11/519 useless extension candidates. Maximal degree in co-relation 5797. Up to 278 conditions per place. [2021-03-26 14:30:38,496 INFO L132 encePairwiseOnDemand]: 49/64 looper letters, 135 selfloop transitions, 68 changer transitions 7/214 dead transitions. [2021-03-26 14:30:38,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 214 transitions, 4739 flow [2021-03-26 14:30:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-26 14:30:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-26 14:30:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 301 transitions. [2021-03-26 14:30:38,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22395833333333334 [2021-03-26 14:30:38,497 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 301 transitions. [2021-03-26 14:30:38,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 301 transitions. [2021-03-26 14:30:38,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:38,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 301 transitions. [2021-03-26 14:30:38,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 14.333333333333334) internal successors, (301), 21 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:38,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 64.0) internal successors, (1408), 22 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:38,499 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 64.0) internal successors, (1408), 22 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:38,500 INFO L185 Difference]: Start difference. First operand has 225 places, 172 transitions, 2947 flow. Second operand 21 states and 301 transitions. [2021-03-26 14:30:38,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 214 transitions, 4739 flow [2021-03-26 14:30:38,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 214 transitions, 4262 flow, removed 209 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:38,580 INFO L241 Difference]: Finished difference. Result has 245 places, 183 transitions, 3101 flow [2021-03-26 14:30:38,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2566, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3101, PETRI_PLACES=245, PETRI_TRANSITIONS=183} [2021-03-26 14:30:38,580 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 229 predicate places. [2021-03-26 14:30:38,580 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:38,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 183 transitions, 3101 flow [2021-03-26 14:30:38,581 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 183 transitions, 3101 flow [2021-03-26 14:30:38,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 183 transitions, 3101 flow [2021-03-26 14:30:38,637 INFO L129 PetriNetUnfolder]: 179/497 cut-off events. [2021-03-26 14:30:38,637 INFO L130 PetriNetUnfolder]: For 26336/26356 co-relation queries the response was YES. [2021-03-26 14:30:38,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5373 conditions, 497 events. 179/497 cut-off events. For 26336/26356 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3197 event pairs, 18 based on Foata normal form. 9/502 useless extension candidates. Maximal degree in co-relation 5201. Up to 256 conditions per place. [2021-03-26 14:30:38,642 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 14:30:39,090 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:39,090 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:39,090 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 510 [2021-03-26 14:30:39,091 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 183 transitions, 3121 flow [2021-03-26 14:30:39,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:39,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:39,091 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:39,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable189 [2021-03-26 14:30:39,296 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:39,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:39,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1902871965, now seen corresponding path program 2 times [2021-03-26 14:30:39,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:39,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078091514] [2021-03-26 14:30:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:39,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,312 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 14:30:39,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:30:39,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:39,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:39,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:39,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078091514] [2021-03-26 14:30:39,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713655665] [2021-03-26 14:30:39,342 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 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 [2021-03-26 14:30:39,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:39,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:39,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:30:39,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:39,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:39,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:39,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:39,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:39,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,402 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:39,403 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:39,404 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:39,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:39,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:39,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:39,419 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:30:39,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:39,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:30:39,421 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:30:39,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:39,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:39,445 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 14:30:39,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:39,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:39,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:39,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:39,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:39,458 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 14:30:39,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:39,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:39,460 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:39,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:39,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:39,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:30:39,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490683750] [2021-03-26 14:30:39,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:30:39,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:39,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:30:39,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:30:39,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-26 14:30:39,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 183 transitions, 3121 flow. Second operand has 8 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) [2021-03-26 14:30:39,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:39,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-26 14:30:39,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:39,758 INFO L129 PetriNetUnfolder]: 185/506 cut-off events. [2021-03-26 14:30:39,758 INFO L130 PetriNetUnfolder]: For 27658/27666 co-relation queries the response was YES. [2021-03-26 14:30:39,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5935 conditions, 506 events. 185/506 cut-off events. For 27658/27666 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3247 event pairs, 11 based on Foata normal form. 2/504 useless extension candidates. Maximal degree in co-relation 5754. Up to 263 conditions per place. [2021-03-26 14:30:39,763 INFO L132 encePairwiseOnDemand]: 49/67 looper letters, 154 selfloop transitions, 45 changer transitions 0/205 dead transitions. [2021-03-26 14:30:39,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 205 transitions, 4367 flow [2021-03-26 14:30:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:30:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:30:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2021-03-26 14:30:39,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2802653399668325 [2021-03-26 14:30:39,764 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 169 transitions. [2021-03-26 14:30:39,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 169 transitions. [2021-03-26 14:30:39,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:39,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 169 transitions. [2021-03-26 14:30:39,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:39,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:39,765 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:39,765 INFO L185 Difference]: Start difference. First operand has 242 places, 183 transitions, 3121 flow. Second operand 9 states and 169 transitions. [2021-03-26 14:30:39,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 205 transitions, 4367 flow [2021-03-26 14:30:39,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 205 transitions, 3944 flow, removed 161 selfloop flow, removed 14 redundant places. [2021-03-26 14:30:39,857 INFO L241 Difference]: Finished difference. Result has 237 places, 184 transitions, 2842 flow [2021-03-26 14:30:39,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2716, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2842, PETRI_PLACES=237, PETRI_TRANSITIONS=184} [2021-03-26 14:30:39,857 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 221 predicate places. [2021-03-26 14:30:39,857 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:39,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 184 transitions, 2842 flow [2021-03-26 14:30:39,857 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 184 transitions, 2842 flow [2021-03-26 14:30:39,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 184 transitions, 2842 flow [2021-03-26 14:30:39,916 INFO L129 PetriNetUnfolder]: 181/506 cut-off events. [2021-03-26 14:30:39,916 INFO L130 PetriNetUnfolder]: For 24604/24658 co-relation queries the response was YES. [2021-03-26 14:30:39,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5169 conditions, 506 events. 181/506 cut-off events. For 24604/24658 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3332 event pairs, 19 based on Foata normal form. 3/505 useless extension candidates. Maximal degree in co-relation 5007. Up to 249 conditions per place. [2021-03-26 14:30:39,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-26 14:30:39,926 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:39,926 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:39,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 14:30:39,927 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 184 transitions, 2842 flow [2021-03-26 14:30:39,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:30:39,927 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:39,927 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:40,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:40,143 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:40,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1384281135, now seen corresponding path program 1 times [2021-03-26 14:30:40,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:40,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249725259] [2021-03-26 14:30:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:40,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:40,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:40,175 INFO L142 QuantifierPusher]: treesize reduction 245, result has 10.9 percent of original size [2021-03-26 14:30:40,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:40,186 INFO L142 QuantifierPusher]: treesize reduction 31, result has 20.5 percent of original size [2021-03-26 14:30:40,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:40,195 INFO L142 QuantifierPusher]: treesize reduction 32, result has 13.5 percent of original size [2021-03-26 14:30:40,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:40,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:40,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249725259] [2021-03-26 14:30:40,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:40,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:30:40,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498989207] [2021-03-26 14:30:40,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:40,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:40,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:40,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:40,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-26 14:30:40,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 184 transitions, 2842 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:40,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:40,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-26 14:30:40,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:40,417 INFO L129 PetriNetUnfolder]: 187/518 cut-off events. [2021-03-26 14:30:40,417 INFO L130 PetriNetUnfolder]: For 26016/26044 co-relation queries the response was YES. [2021-03-26 14:30:40,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5758 conditions, 518 events. 187/518 cut-off events. For 26016/26044 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3383 event pairs, 21 based on Foata normal form. 9/523 useless extension candidates. Maximal degree in co-relation 5587. Up to 388 conditions per place. [2021-03-26 14:30:40,422 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 168 selfloop transitions, 14 changer transitions 0/188 dead transitions. [2021-03-26 14:30:40,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 188 transitions, 3297 flow [2021-03-26 14:30:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2021-03-26 14:30:40,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2814498933901919 [2021-03-26 14:30:40,423 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 132 transitions. [2021-03-26 14:30:40,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 132 transitions. [2021-03-26 14:30:40,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:40,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 132 transitions. [2021-03-26 14:30:40,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2021-03-26 14:30:40,424 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) [2021-03-26 14:30:40,424 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) [2021-03-26 14:30:40,424 INFO L185 Difference]: Start difference. First operand has 237 places, 184 transitions, 2842 flow. Second operand 7 states and 132 transitions. [2021-03-26 14:30:40,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 188 transitions, 3297 flow [2021-03-26 14:30:40,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 188 transitions, 3232 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:40,503 INFO L241 Difference]: Finished difference. Result has 240 places, 186 transitions, 2855 flow [2021-03-26 14:30:40,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2777, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2855, PETRI_PLACES=240, PETRI_TRANSITIONS=186} [2021-03-26 14:30:40,504 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 224 predicate places. [2021-03-26 14:30:40,504 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:40,504 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 186 transitions, 2855 flow [2021-03-26 14:30:40,504 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 186 transitions, 2855 flow [2021-03-26 14:30:40,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 186 transitions, 2855 flow [2021-03-26 14:30:40,554 INFO L129 PetriNetUnfolder]: 183/513 cut-off events. [2021-03-26 14:30:40,554 INFO L130 PetriNetUnfolder]: For 25208/25262 co-relation queries the response was YES. [2021-03-26 14:30:40,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5269 conditions, 513 events. 183/513 cut-off events. For 25208/25262 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3413 event pairs, 20 based on Foata normal form. 3/512 useless extension candidates. Maximal degree in co-relation 5106. Up to 255 conditions per place. [2021-03-26 14:30:40,559 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 14:30:40,564 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:40,564 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:40,564 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-26 14:30:40,564 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 186 transitions, 2855 flow [2021-03-26 14:30:40,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:40,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:40,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:40,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-26 14:30:40,565 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:40,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1744454325, now seen corresponding path program 2 times [2021-03-26 14:30:40,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:40,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472432437] [2021-03-26 14:30:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:40,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:40,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:40,584 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-26 14:30:40,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:40,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:40,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:40,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:40,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:40,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472432437] [2021-03-26 14:30:40,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:40,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:30:40,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122705090] [2021-03-26 14:30:40,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:40,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:40,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:40,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-26 14:30:40,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 186 transitions, 2855 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:40,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:40,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-26 14:30:40,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:40,810 INFO L129 PetriNetUnfolder]: 186/512 cut-off events. [2021-03-26 14:30:40,810 INFO L130 PetriNetUnfolder]: For 25349/25357 co-relation queries the response was YES. [2021-03-26 14:30:40,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5721 conditions, 512 events. 186/512 cut-off events. For 25349/25357 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3306 event pairs, 23 based on Foata normal form. 5/513 useless extension candidates. Maximal degree in co-relation 5549. Up to 388 conditions per place. [2021-03-26 14:30:40,817 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 169 selfloop transitions, 11 changer transitions 1/187 dead transitions. [2021-03-26 14:30:40,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 187 transitions, 3263 flow [2021-03-26 14:30:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2021-03-26 14:30:40,818 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.291044776119403 [2021-03-26 14:30:40,818 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 117 transitions. [2021-03-26 14:30:40,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 117 transitions. [2021-03-26 14:30:40,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:40,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 117 transitions. [2021-03-26 14:30:40,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:40,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:40,819 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:40,819 INFO L185 Difference]: Start difference. First operand has 240 places, 186 transitions, 2855 flow. Second operand 6 states and 117 transitions. [2021-03-26 14:30:40,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 187 transitions, 3263 flow [2021-03-26 14:30:40,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 187 transitions, 3220 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:40,943 INFO L241 Difference]: Finished difference. Result has 242 places, 184 transitions, 2811 flow [2021-03-26 14:30:40,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2804, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2811, PETRI_PLACES=242, PETRI_TRANSITIONS=184} [2021-03-26 14:30:40,944 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 226 predicate places. [2021-03-26 14:30:40,944 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:40,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 184 transitions, 2811 flow [2021-03-26 14:30:40,945 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 184 transitions, 2811 flow [2021-03-26 14:30:40,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 184 transitions, 2811 flow [2021-03-26 14:30:41,015 INFO L129 PetriNetUnfolder]: 182/506 cut-off events. [2021-03-26 14:30:41,015 INFO L130 PetriNetUnfolder]: For 24836/24890 co-relation queries the response was YES. [2021-03-26 14:30:41,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5199 conditions, 506 events. 182/506 cut-off events. For 24836/24890 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3330 event pairs, 20 based on Foata normal form. 3/505 useless extension candidates. Maximal degree in co-relation 5036. Up to 253 conditions per place. [2021-03-26 14:30:41,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 14:30:41,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:41,030 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:41,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 14:30:41,031 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 184 transitions, 2811 flow [2021-03-26 14:30:41,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:41,031 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:41,031 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:41,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-26 14:30:41,031 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:41,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1471062318, now seen corresponding path program 1 times [2021-03-26 14:30:41,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:41,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890045105] [2021-03-26 14:30:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:41,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,050 INFO L142 QuantifierPusher]: treesize reduction 63, result has 33.0 percent of original size [2021-03-26 14:30:41,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:41,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:30:41,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:41,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890045105] [2021-03-26 14:30:41,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849353457] [2021-03-26 14:30:41,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:41,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-26 14:30:41,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:41,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:41,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:41,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,137 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:41,137 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 14:30:41,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:30:41,142 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-26 14:30:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:30:41,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:30:41,169 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-03-26 14:30:41,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:41,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:41,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 14:30:41,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:30:41,173 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-26 14:30:41,173 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:41,173 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,174 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 14:30:41,174 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:41,175 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,175 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-26 14:30:41,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:41,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:41,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:41,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:41,194 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:30:41,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:41,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:41,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:41,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:41,204 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:41,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:41,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:41,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:30:41,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845581585] [2021-03-26 14:30:41,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:30:41,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:41,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:30:41,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:30:41,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-26 14:30:41,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 184 transitions, 2811 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:30:41,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:41,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-26 14:30:41,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:41,401 INFO L129 PetriNetUnfolder]: 189/506 cut-off events. [2021-03-26 14:30:41,401 INFO L130 PetriNetUnfolder]: For 24843/24851 co-relation queries the response was YES. [2021-03-26 14:30:41,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5727 conditions, 506 events. 189/506 cut-off events. For 24843/24851 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3173 event pairs, 21 based on Foata normal form. 8/511 useless extension candidates. Maximal degree in co-relation 5555. Up to 383 conditions per place. [2021-03-26 14:30:41,405 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 166 selfloop transitions, 15 changer transitions 0/187 dead transitions. [2021-03-26 14:30:41,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 187 transitions, 3376 flow [2021-03-26 14:30:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:30:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:30:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2021-03-26 14:30:41,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27238805970149255 [2021-03-26 14:30:41,406 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 146 transitions. [2021-03-26 14:30:41,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 146 transitions. [2021-03-26 14:30:41,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:41,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 146 transitions. [2021-03-26 14:30:41,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:41,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:41,407 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:41,407 INFO L185 Difference]: Start difference. First operand has 239 places, 184 transitions, 2811 flow. Second operand 8 states and 146 transitions. [2021-03-26 14:30:41,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 187 transitions, 3376 flow [2021-03-26 14:30:41,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 187 transitions, 3325 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-26 14:30:41,490 INFO L241 Difference]: Finished difference. Result has 239 places, 183 transitions, 2809 flow [2021-03-26 14:30:41,490 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2750, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2809, PETRI_PLACES=239, PETRI_TRANSITIONS=183} [2021-03-26 14:30:41,490 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 223 predicate places. [2021-03-26 14:30:41,490 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:41,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 183 transitions, 2809 flow [2021-03-26 14:30:41,490 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 183 transitions, 2809 flow [2021-03-26 14:30:41,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 183 transitions, 2809 flow [2021-03-26 14:30:41,560 INFO L129 PetriNetUnfolder]: 185/498 cut-off events. [2021-03-26 14:30:41,560 INFO L130 PetriNetUnfolder]: For 23404/23426 co-relation queries the response was YES. [2021-03-26 14:30:41,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5186 conditions, 498 events. 185/498 cut-off events. For 23404/23426 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3205 event pairs, 21 based on Foata normal form. 3/498 useless extension candidates. Maximal degree in co-relation 5025. Up to 258 conditions per place. [2021-03-26 14:30:41,568 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 14:30:41,575 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:41,575 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:41,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-26 14:30:41,575 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 183 transitions, 2809 flow [2021-03-26 14:30:41,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:30:41,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:41,576 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:41,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:41,798 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:41,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:41,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1844268710, now seen corresponding path program 2 times [2021-03-26 14:30:41,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:41,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705638079] [2021-03-26 14:30:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:41,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:41,842 INFO L142 QuantifierPusher]: treesize reduction 125, result has 30.2 percent of original size [2021-03-26 14:30:41,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:41,881 INFO L142 QuantifierPusher]: treesize reduction 1169, result has 2.9 percent of original size [2021-03-26 14:30:41,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:41,901 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:41,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:41,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:41,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705638079] [2021-03-26 14:30:41,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424556525] [2021-03-26 14:30:41,921 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 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 [2021-03-26 14:30:41,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:41,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:41,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 14:30:41,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:41,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,960 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:41,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:41,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:41,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:41,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:41,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,965 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:41,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,966 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:41,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:41,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:41,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:41,985 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-26 14:30:41,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:41,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:41,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:41,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,988 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:41,988 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:41,989 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:41,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:41,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:41,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:41,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:42,013 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.0 percent of original size [2021-03-26 14:30:42,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:42,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:30:42,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 14:30:42,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 14:30:42,018 INFO L142 QuantifierPusher]: treesize reduction 1183, result has 11.8 percent of original size [2021-03-26 14:30:42,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,019 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-26 14:30:42,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,020 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:42,021 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,021 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-26 14:30:42,022 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 14:30:42,023 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 14:30:42,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,023 INFO L142 QuantifierPusher]: treesize reduction 57, result has 39.4 percent of original size [2021-03-26 14:30:42,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:30:42,024 INFO L147 QuantifierPusher]: treesize reduction 31, result has 59.7 percent of original size 46 [2021-03-26 14:30:42,025 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.7 percent of original size [2021-03-26 14:30:42,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:42,053 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-26 14:30:42,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:30:42,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 14:30:42,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-03-26 14:30:42,057 INFO L142 QuantifierPusher]: treesize reduction 46, result has 77.5 percent of original size [2021-03-26 14:30:42,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,058 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:42,059 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:42,059 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,060 INFO L142 QuantifierPusher]: treesize reduction 166, result has 37.4 percent of original size [2021-03-26 14:30:42,062 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:42,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,064 INFO L142 QuantifierPusher]: treesize reduction 50, result has 64.0 percent of original size [2021-03-26 14:30:42,064 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:42,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,065 INFO L142 QuantifierPusher]: treesize reduction 66, result has 36.5 percent of original size [2021-03-26 14:30:42,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:42,069 INFO L147 QuantifierPusher]: treesize reduction 7, result has 74.1 percent of original size 20 [2021-03-26 14:30:42,069 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-26 14:30:42,070 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-26 14:30:42,070 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-03-26 14:30:42,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:42,108 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 14:30:42,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:42,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:30:42,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,114 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-26 14:30:42,114 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:42,114 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,116 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.4 percent of original size 51 [2021-03-26 14:30:42,116 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:42,117 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:42,117 INFO L142 QuantifierPusher]: treesize reduction 26, result has 65.3 percent of original size [2021-03-26 14:30:42,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:42,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:42,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:30:42,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209758855] [2021-03-26 14:30:42,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:30:42,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:42,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:30:42,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:30:42,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2021-03-26 14:30:42,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 183 transitions, 2809 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:42,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:42,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2021-03-26 14:30:42,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:42,912 INFO L129 PetriNetUnfolder]: 197/538 cut-off events. [2021-03-26 14:30:42,912 INFO L130 PetriNetUnfolder]: For 25382/25390 co-relation queries the response was YES. [2021-03-26 14:30:42,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 538 events. 197/538 cut-off events. For 25382/25390 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3478 event pairs, 23 based on Foata normal form. 5/540 useless extension candidates. Maximal degree in co-relation 5935. Up to 420 conditions per place. [2021-03-26 14:30:42,917 INFO L132 encePairwiseOnDemand]: 54/67 looper letters, 167 selfloop transitions, 35 changer transitions 1/207 dead transitions. [2021-03-26 14:30:42,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 207 transitions, 3992 flow [2021-03-26 14:30:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 14:30:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 14:30:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 202 transitions. [2021-03-26 14:30:42,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21535181236673773 [2021-03-26 14:30:42,918 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 202 transitions. [2021-03-26 14:30:42,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 202 transitions. [2021-03-26 14:30:42,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:42,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 202 transitions. [2021-03-26 14:30:42,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:42,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 67.0) internal successors, (1005), 15 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:42,919 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 67.0) internal successors, (1005), 15 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:42,919 INFO L185 Difference]: Start difference. First operand has 239 places, 183 transitions, 2809 flow. Second operand 14 states and 202 transitions. [2021-03-26 14:30:42,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 207 transitions, 3992 flow [2021-03-26 14:30:43,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 3959 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:43,006 INFO L241 Difference]: Finished difference. Result has 251 places, 203 transitions, 3634 flow [2021-03-26 14:30:43,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3634, PETRI_PLACES=251, PETRI_TRANSITIONS=203} [2021-03-26 14:30:43,006 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 235 predicate places. [2021-03-26 14:30:43,006 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:43,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 203 transitions, 3634 flow [2021-03-26 14:30:43,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 203 transitions, 3634 flow [2021-03-26 14:30:43,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 203 transitions, 3634 flow [2021-03-26 14:30:43,063 INFO L129 PetriNetUnfolder]: 194/526 cut-off events. [2021-03-26 14:30:43,064 INFO L130 PetriNetUnfolder]: For 27046/27061 co-relation queries the response was YES. [2021-03-26 14:30:43,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 526 events. 194/526 cut-off events. For 27046/27061 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3409 event pairs, 17 based on Foata normal form. 5/528 useless extension candidates. Maximal degree in co-relation 5644. Up to 276 conditions per place. [2021-03-26 14:30:43,069 INFO L142 LiptonReduction]: Number of co-enabled transitions 120 [2021-03-26 14:30:43,529 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:43,529 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:43,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 523 [2021-03-26 14:30:43,530 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 202 transitions, 3644 flow [2021-03-26 14:30:43,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:43,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:43,530 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:43,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable204 [2021-03-26 14:30:43,744 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:43,744 INFO L82 PathProgramCache]: Analyzing trace with hash 332483735, now seen corresponding path program 1 times [2021-03-26 14:30:43,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:43,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266133308] [2021-03-26 14:30:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:43,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:43,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:43,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:43,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:43,767 INFO L142 QuantifierPusher]: treesize reduction 1004, result has 27.4 percent of original size [2021-03-26 14:30:43,769 INFO L147 QuantifierPusher]: treesize reduction 14, result has 96.3 percent of original size 364 [2021-03-26 14:30:43,928 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-03-26 14:30:43,929 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.6 percent of original size [2021-03-26 14:30:43,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:43,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-03-26 14:30:43,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:43,982 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-03-26 14:30:43,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:43,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:43,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:44,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266133308] [2021-03-26 14:30:44,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478522163] [2021-03-26 14:30:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:30:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:44,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:30:44,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:44,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:44,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:44,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:44,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:44,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,044 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:44,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:44,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:44,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:30:44,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:30:44,059 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-26 14:30:44,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:30:44,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:30:44,101 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-03-26 14:30:44,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:44,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-03-26 14:30:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:30:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 794 [2021-03-26 14:30:44,159 INFO L142 QuantifierPusher]: treesize reduction 43281, result has 0.5 percent of original size [2021-03-26 14:30:44,160 INFO L147 QuantifierPusher]: treesize reduction 68, result has 65.7 percent of original size 130 [2021-03-26 14:30:44,161 INFO L142 QuantifierPusher]: treesize reduction 68, result has 65.7 percent of original size [2021-03-26 14:30:44,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 14:30:44,266 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.6 percent of original size [2021-03-26 14:30:44,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:44,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 14:30:44,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-26 14:30:44,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-03-26 14:30:44,274 INFO L142 QuantifierPusher]: treesize reduction 214, result has 51.7 percent of original size [2021-03-26 14:30:44,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,276 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:44,276 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:44,277 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,279 INFO L142 QuantifierPusher]: treesize reduction 238, result has 41.2 percent of original size [2021-03-26 14:30:44,280 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:30:44,281 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,282 INFO L142 QuantifierPusher]: treesize reduction 82, result has 65.0 percent of original size [2021-03-26 14:30:44,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:30:44,284 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,285 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-26 14:30:44,287 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:30:44,288 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,289 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-26 14:30:44,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:44,292 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 14:30:44,294 INFO L147 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size 37 [2021-03-26 14:30:44,296 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 14:30:44,296 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 14:30:44,297 INFO L142 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size [2021-03-26 14:30:44,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:30:44,367 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:30:44,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:44,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:44,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:44,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:44,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:30:44,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,375 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:30:44,375 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:44,375 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,377 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:30:44,377 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:30:44,377 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,378 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:30:44,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:44,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:44,407 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:44,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:44,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:44,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:44,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,415 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:44,415 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:44,416 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,416 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:44,417 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:44,417 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:44,418 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 14:30:44,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:44,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:44,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:30:44,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969194790] [2021-03-26 14:30:44,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:30:44,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:44,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:30:44,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:30:44,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 70 [2021-03-26 14:30:44,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 202 transitions, 3644 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:44,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:44,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 70 [2021-03-26 14:30:44,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:44,914 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-03-26 14:30:45,239 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-03-26 14:30:45,365 INFO L129 PetriNetUnfolder]: 201/558 cut-off events. [2021-03-26 14:30:45,365 INFO L130 PetriNetUnfolder]: For 29676/29676 co-relation queries the response was YES. [2021-03-26 14:30:45,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6616 conditions, 558 events. 201/558 cut-off events. For 29676/29676 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3701 event pairs, 22 based on Foata normal form. 4/559 useless extension candidates. Maximal degree in co-relation 6435. Up to 428 conditions per place. [2021-03-26 14:30:45,371 INFO L132 encePairwiseOnDemand]: 56/70 looper letters, 187 selfloop transitions, 25 changer transitions 6/222 dead transitions. [2021-03-26 14:30:45,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 222 transitions, 4715 flow [2021-03-26 14:30:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 14:30:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 14:30:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 208 transitions. [2021-03-26 14:30:45,372 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21224489795918366 [2021-03-26 14:30:45,372 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 208 transitions. [2021-03-26 14:30:45,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 208 transitions. [2021-03-26 14:30:45,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:45,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 208 transitions. [2021-03-26 14:30:45,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:45,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 70.0) internal successors, (1050), 15 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:45,373 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 70.0) internal successors, (1050), 15 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:45,373 INFO L185 Difference]: Start difference. First operand has 250 places, 202 transitions, 3644 flow. Second operand 14 states and 208 transitions. [2021-03-26 14:30:45,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 222 transitions, 4715 flow [2021-03-26 14:30:45,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 222 transitions, 4029 flow, removed 335 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:45,475 INFO L241 Difference]: Finished difference. Result has 262 places, 210 transitions, 3244 flow [2021-03-26 14:30:45,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2976, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3244, PETRI_PLACES=262, PETRI_TRANSITIONS=210} [2021-03-26 14:30:45,476 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 246 predicate places. [2021-03-26 14:30:45,476 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:45,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 262 places, 210 transitions, 3244 flow [2021-03-26 14:30:45,476 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 262 places, 210 transitions, 3244 flow [2021-03-26 14:30:45,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 210 transitions, 3244 flow [2021-03-26 14:30:45,536 INFO L129 PetriNetUnfolder]: 195/535 cut-off events. [2021-03-26 14:30:45,537 INFO L130 PetriNetUnfolder]: For 27250/27269 co-relation queries the response was YES. [2021-03-26 14:30:45,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 535 events. 195/535 cut-off events. For 27250/27269 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3524 event pairs, 19 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 5542. Up to 267 conditions per place. [2021-03-26 14:30:45,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-26 14:30:45,693 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:45,693 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:30:45,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 217 [2021-03-26 14:30:45,693 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 210 transitions, 3252 flow [2021-03-26 14:30:45,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:30:45,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:45,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:45,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2021-03-26 14:30:45,908 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:45,908 INFO L82 PathProgramCache]: Analyzing trace with hash -475418680, now seen corresponding path program 1 times [2021-03-26 14:30:45,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:45,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002241392] [2021-03-26 14:30:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:45,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:45,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:45,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:45,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:45,935 INFO L142 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size [2021-03-26 14:30:45,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:45,955 INFO L142 QuantifierPusher]: treesize reduction 146, result has 34.8 percent of original size [2021-03-26 14:30:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 14:30:45,993 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:30:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:46,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002241392] [2021-03-26 14:30:46,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435096166] [2021-03-26 14:30:46,002 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 [2021-03-26 14:30:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:46,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:30:46,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:46,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,042 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:46,042 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:46,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:46,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:46,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,045 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:46,046 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,046 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:46,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:46,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:46,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:46,071 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-26 14:30:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:46,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:46,074 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,075 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:46,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:46,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:46,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:46,096 INFO L142 QuantifierPusher]: treesize reduction 10, result has 86.1 percent of original size [2021-03-26 14:30:46,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:30:46,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:46,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:30:46,100 INFO L142 QuantifierPusher]: treesize reduction 107, result has 42.8 percent of original size [2021-03-26 14:30:46,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,100 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:46,101 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,101 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-26 14:30:46,102 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 14:30:46,103 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 14:30:46,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,103 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 14:30:46,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:30:46,104 INFO L147 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size 28 [2021-03-26 14:30:46,104 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-26 14:30:46,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:30:46,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-03-26 14:30:46,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:46,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:46,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:46,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:30:46,124 INFO L142 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-03-26 14:30:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:46,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:46,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:30:46,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399588959] [2021-03-26 14:30:46,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:30:46,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:46,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:30:46,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:30:46,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-26 14:30:46,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 210 transitions, 3252 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:46,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:46,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-26 14:30:46,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:46,473 INFO L129 PetriNetUnfolder]: 198/543 cut-off events. [2021-03-26 14:30:46,474 INFO L130 PetriNetUnfolder]: For 27535/27543 co-relation queries the response was YES. [2021-03-26 14:30:46,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6272 conditions, 543 events. 198/543 cut-off events. For 27535/27543 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3538 event pairs, 21 based on Foata normal form. 6/545 useless extension candidates. Maximal degree in co-relation 6136. Up to 412 conditions per place. [2021-03-26 14:30:46,479 INFO L132 encePairwiseOnDemand]: 59/71 looper letters, 190 selfloop transitions, 12 changer transitions 1/209 dead transitions. [2021-03-26 14:30:46,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 209 transitions, 3736 flow [2021-03-26 14:30:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:30:46,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:30:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2021-03-26 14:30:46,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25 [2021-03-26 14:30:46,493 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 142 transitions. [2021-03-26 14:30:46,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 142 transitions. [2021-03-26 14:30:46,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:46,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 142 transitions. [2021-03-26 14:30:46,493 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) [2021-03-26 14:30:46,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 71.0) internal successors, (639), 9 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:46,494 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 71.0) internal successors, (639), 9 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:46,494 INFO L185 Difference]: Start difference. First operand has 261 places, 210 transitions, 3252 flow. Second operand 8 states and 142 transitions. [2021-03-26 14:30:46,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 209 transitions, 3736 flow [2021-03-26 14:30:46,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 209 transitions, 3594 flow, removed 59 selfloop flow, removed 7 redundant places. [2021-03-26 14:30:46,616 INFO L241 Difference]: Finished difference. Result has 257 places, 206 transitions, 3081 flow [2021-03-26 14:30:46,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3084, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3081, PETRI_PLACES=257, PETRI_TRANSITIONS=206} [2021-03-26 14:30:46,617 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 241 predicate places. [2021-03-26 14:30:46,617 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:46,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 206 transitions, 3081 flow [2021-03-26 14:30:46,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 206 transitions, 3081 flow [2021-03-26 14:30:46,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 206 transitions, 3081 flow [2021-03-26 14:30:46,672 INFO L129 PetriNetUnfolder]: 193/528 cut-off events. [2021-03-26 14:30:46,672 INFO L130 PetriNetUnfolder]: For 26314/26331 co-relation queries the response was YES. [2021-03-26 14:30:46,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5527 conditions, 528 events. 193/528 cut-off events. For 26314/26331 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3451 event pairs, 17 based on Foata normal form. 7/531 useless extension candidates. Maximal degree in co-relation 5418. Up to 262 conditions per place. [2021-03-26 14:30:46,678 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-26 14:30:46,684 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:46,685 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:46,685 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 14:30:46,685 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 206 transitions, 3081 flow [2021-03-26 14:30:46,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:46,685 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:46,685 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:46,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2021-03-26 14:30:46,888 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:46,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1852111961, now seen corresponding path program 1 times [2021-03-26 14:30:46,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:46,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644380670] [2021-03-26 14:30:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:46,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:46,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:46,920 INFO L142 QuantifierPusher]: treesize reduction 2525, result has 5.1 percent of original size [2021-03-26 14:30:46,920 INFO L147 QuantifierPusher]: treesize reduction 36, result has 73.5 percent of original size 100 [2021-03-26 14:30:46,968 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 14:30:46,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:46,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:46,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:47,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:47,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644380670] [2021-03-26 14:30:47,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95092841] [2021-03-26 14:30:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:47,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:30:47,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:47,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:47,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:47,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:47,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:30:47,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,069 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:30:47,069 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:30:47,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:30:47,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:30:47,074 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-26 14:30:47,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:30:47,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:30:47,124 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.6 percent of original size [2021-03-26 14:30:47,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 14:30:47,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 14:30:47,127 INFO L142 QuantifierPusher]: treesize reduction 203, result has 26.2 percent of original size [2021-03-26 14:30:47,127 INFO L147 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size 33 [2021-03-26 14:30:47,128 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-26 14:30:47,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:30:47,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.2 percent of original size [2021-03-26 14:30:47,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:30:47,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:47,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:30:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:30:47,150 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-26 14:30:47,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:47,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:47,153 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:47,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:47,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:47,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:30:47,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857212369] [2021-03-26 14:30:47,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:30:47,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:47,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:30:47,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:30:47,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-26 14:30:47,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 206 transitions, 3081 flow. Second operand has 8 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) [2021-03-26 14:30:47,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:47,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-26 14:30:47,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:47,453 INFO L129 PetriNetUnfolder]: 200/546 cut-off events. [2021-03-26 14:30:47,453 INFO L130 PetriNetUnfolder]: For 28116/28124 co-relation queries the response was YES. [2021-03-26 14:30:47,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6163 conditions, 546 events. 200/546 cut-off events. For 28116/28124 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3554 event pairs, 22 based on Foata normal form. 6/548 useless extension candidates. Maximal degree in co-relation 6051. Up to 402 conditions per place. [2021-03-26 14:30:47,461 INFO L132 encePairwiseOnDemand]: 62/71 looper letters, 191 selfloop transitions, 16 changer transitions 0/213 dead transitions. [2021-03-26 14:30:47,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 213 transitions, 3745 flow [2021-03-26 14:30:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 131 transitions. [2021-03-26 14:30:47,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2635814889336016 [2021-03-26 14:30:47,463 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 131 transitions. [2021-03-26 14:30:47,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 131 transitions. [2021-03-26 14:30:47,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:47,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 131 transitions. [2021-03-26 14:30:47,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 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) [2021-03-26 14:30:47,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:47,464 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:47,464 INFO L185 Difference]: Start difference. First operand has 251 places, 206 transitions, 3081 flow. Second operand 7 states and 131 transitions. [2021-03-26 14:30:47,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 213 transitions, 3745 flow [2021-03-26 14:30:47,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 213 transitions, 3720 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:47,598 INFO L241 Difference]: Finished difference. Result has 252 places, 207 transitions, 3137 flow [2021-03-26 14:30:47,598 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3137, PETRI_PLACES=252, PETRI_TRANSITIONS=207} [2021-03-26 14:30:47,598 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 236 predicate places. [2021-03-26 14:30:47,599 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:47,599 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 207 transitions, 3137 flow [2021-03-26 14:30:47,599 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 207 transitions, 3137 flow [2021-03-26 14:30:47,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 207 transitions, 3137 flow [2021-03-26 14:30:47,675 INFO L129 PetriNetUnfolder]: 196/534 cut-off events. [2021-03-26 14:30:47,675 INFO L130 PetriNetUnfolder]: For 27171/27188 co-relation queries the response was YES. [2021-03-26 14:30:47,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5643 conditions, 534 events. 196/534 cut-off events. For 27171/27188 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3493 event pairs, 17 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 5474. Up to 267 conditions per place. [2021-03-26 14:30:47,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 14:30:47,692 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:47,692 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:47,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-26 14:30:47,693 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 207 transitions, 3137 flow [2021-03-26 14:30:47,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:30:47,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:47,693 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:47,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable226 [2021-03-26 14:30:47,900 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:47,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:47,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1810649933, now seen corresponding path program 1 times [2021-03-26 14:30:47,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:47,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689038606] [2021-03-26 14:30:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:47,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:47,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:47,928 INFO L142 QuantifierPusher]: treesize reduction 2119, result has 20.8 percent of original size [2021-03-26 14:30:47,930 INFO L147 QuantifierPusher]: treesize reduction 70, result has 87.4 percent of original size 485 [2021-03-26 14:30:48,115 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2021-03-26 14:30:48,117 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 14:30:48,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:30:48,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:48,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:48,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689038606] [2021-03-26 14:30:48,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:48,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:30:48,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443350487] [2021-03-26 14:30:48,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:30:48,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:48,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:30:48,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:30:48,137 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-26 14:30:48,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 207 transitions, 3137 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:48,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:48,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-26 14:30:48,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:48,301 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-03-26 14:30:48,521 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-03-26 14:30:48,647 INFO L129 PetriNetUnfolder]: 199/542 cut-off events. [2021-03-26 14:30:48,647 INFO L130 PetriNetUnfolder]: For 27599/27607 co-relation queries the response was YES. [2021-03-26 14:30:48,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6124 conditions, 542 events. 199/542 cut-off events. For 27599/27607 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3506 event pairs, 22 based on Foata normal form. 5/544 useless extension candidates. Maximal degree in co-relation 5946. Up to 417 conditions per place. [2021-03-26 14:30:48,652 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 190 selfloop transitions, 8 changer transitions 2/206 dead transitions. [2021-03-26 14:30:48,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 206 transitions, 3530 flow [2021-03-26 14:30:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:30:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:30:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2021-03-26 14:30:48,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2652582159624413 [2021-03-26 14:30:48,653 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 113 transitions. [2021-03-26 14:30:48,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 113 transitions. [2021-03-26 14:30:48,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:48,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 113 transitions. [2021-03-26 14:30:48,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:48,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:48,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:48,654 INFO L185 Difference]: Start difference. First operand has 252 places, 207 transitions, 3137 flow. Second operand 6 states and 113 transitions. [2021-03-26 14:30:48,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 206 transitions, 3530 flow [2021-03-26 14:30:48,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 206 transitions, 3475 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:48,744 INFO L241 Difference]: Finished difference. Result has 252 places, 204 transitions, 3059 flow [2021-03-26 14:30:48,745 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3075, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3059, PETRI_PLACES=252, PETRI_TRANSITIONS=204} [2021-03-26 14:30:48,745 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 236 predicate places. [2021-03-26 14:30:48,745 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:48,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 204 transitions, 3059 flow [2021-03-26 14:30:48,745 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 204 transitions, 3059 flow [2021-03-26 14:30:48,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 204 transitions, 3059 flow [2021-03-26 14:30:48,799 INFO L129 PetriNetUnfolder]: 194/524 cut-off events. [2021-03-26 14:30:48,799 INFO L130 PetriNetUnfolder]: For 26525/26542 co-relation queries the response was YES. [2021-03-26 14:30:48,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5515 conditions, 524 events. 194/524 cut-off events. For 26525/26542 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3366 event pairs, 19 based on Foata normal form. 7/528 useless extension candidates. Maximal degree in co-relation 5346. Up to 264 conditions per place. [2021-03-26 14:30:48,806 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 14:30:48,812 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:48,812 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:48,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-26 14:30:48,812 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 204 transitions, 3059 flow [2021-03-26 14:30:48,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:30:48,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:48,813 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:48,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-26 14:30:48,813 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:48,813 INFO L82 PathProgramCache]: Analyzing trace with hash 466685970, now seen corresponding path program 2 times [2021-03-26 14:30:48,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:48,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770920166] [2021-03-26 14:30:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:48,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:48,840 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-03-26 14:30:48,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:30:48,865 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-26 14:30:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:30:48,886 INFO L142 QuantifierPusher]: treesize reduction 1170, result has 2.9 percent of original size [2021-03-26 14:30:48,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:48,905 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:48,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:48,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:48,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770920166] [2021-03-26 14:30:48,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758640711] [2021-03-26 14:30:48,928 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 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 [2021-03-26 14:30:48,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:30:48,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:48,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 14:30:48,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:48,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:48,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:48,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:48,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,982 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:48,983 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:48,984 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:48,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:48,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:49,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:30:49,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:49,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:30:49,008 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-26 14:30:49,009 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:30:49,010 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:30:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:30:49,128 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-26 14:30:49,129 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-26 14:30:49,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:49,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:30:49,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:49,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:30:49,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,136 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:49,136 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,137 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:49,137 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,137 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:49,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,138 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,139 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:30:49,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:49,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:49,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 14:30:49,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 14:30:49,190 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.3 percent of original size [2021-03-26 14:30:49,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:30:49,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:49,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:30:49,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,193 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,193 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,194 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:49,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:30:49,224 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-26 14:30:49,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:49,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 14:30:49,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-26 14:30:49,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:30:49,229 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-26 14:30:49,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,230 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:49,230 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:49,231 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,232 INFO L142 QuantifierPusher]: treesize reduction 180, result has 31.0 percent of original size [2021-03-26 14:30:49,232 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:49,233 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,233 INFO L142 QuantifierPusher]: treesize reduction 79, result has 17.7 percent of original size [2021-03-26 14:30:49,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:49,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:49,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:49,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:49,262 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:49,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:49,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:49,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:49,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:49,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,266 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:49,266 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,267 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,267 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:49,268 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:30:49,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:49,268 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,269 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:49,269 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:49,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:49,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:49,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:30:49,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397350559] [2021-03-26 14:30:49,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:30:49,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:49,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:30:49,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:30:49,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 71 [2021-03-26 14:30:49,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 204 transitions, 3059 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:49,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:49,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 71 [2021-03-26 14:30:49,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:50,289 INFO L129 PetriNetUnfolder]: 205/561 cut-off events. [2021-03-26 14:30:50,289 INFO L130 PetriNetUnfolder]: For 29625/29633 co-relation queries the response was YES. [2021-03-26 14:30:50,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6439 conditions, 561 events. 205/561 cut-off events. For 29625/29633 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3703 event pairs, 13 based on Foata normal form. 2/560 useless extension candidates. Maximal degree in co-relation 6259. Up to 415 conditions per place. [2021-03-26 14:30:50,295 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 189 selfloop transitions, 35 changer transitions 4/232 dead transitions. [2021-03-26 14:30:50,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 232 transitions, 4478 flow [2021-03-26 14:30:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 14:30:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 14:30:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 231 transitions. [2021-03-26 14:30:50,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20334507042253522 [2021-03-26 14:30:50,296 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 231 transitions. [2021-03-26 14:30:50,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 231 transitions. [2021-03-26 14:30:50,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:50,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 231 transitions. [2021-03-26 14:30:50,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 14.4375) internal successors, (231), 16 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:50,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 71.0) internal successors, (1207), 17 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:50,297 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 71.0) internal successors, (1207), 17 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:50,297 INFO L185 Difference]: Start difference. First operand has 247 places, 204 transitions, 3059 flow. Second operand 16 states and 231 transitions. [2021-03-26 14:30:50,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 232 transitions, 4478 flow [2021-03-26 14:30:50,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 232 transitions, 4458 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:50,393 INFO L241 Difference]: Finished difference. Result has 264 places, 223 transitions, 3922 flow [2021-03-26 14:30:50,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3041, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3922, PETRI_PLACES=264, PETRI_TRANSITIONS=223} [2021-03-26 14:30:50,393 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 248 predicate places. [2021-03-26 14:30:50,393 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:50,393 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 223 transitions, 3922 flow [2021-03-26 14:30:50,393 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 223 transitions, 3922 flow [2021-03-26 14:30:50,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 223 transitions, 3922 flow [2021-03-26 14:30:50,453 INFO L129 PetriNetUnfolder]: 201/547 cut-off events. [2021-03-26 14:30:50,453 INFO L130 PetriNetUnfolder]: For 30648/30680 co-relation queries the response was YES. [2021-03-26 14:30:50,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6067 conditions, 547 events. 201/547 cut-off events. For 30648/30680 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3577 event pairs, 17 based on Foata normal form. 3/547 useless extension candidates. Maximal degree in co-relation 5956. Up to 277 conditions per place. [2021-03-26 14:30:50,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-26 14:30:51,066 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:51,067 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:30:51,067 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 674 [2021-03-26 14:30:51,067 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 223 transitions, 3952 flow [2021-03-26 14:30:51,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:51,067 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:51,067 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:51,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:51,268 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:51,268 INFO L82 PathProgramCache]: Analyzing trace with hash -2108748328, now seen corresponding path program 3 times [2021-03-26 14:30:51,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:51,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102123329] [2021-03-26 14:30:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:51,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:51,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:51,294 INFO L142 QuantifierPusher]: treesize reduction 33, result has 73.2 percent of original size [2021-03-26 14:30:51,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 14:30:51,330 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.7 percent of original size [2021-03-26 14:30:51,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-26 14:30:51,382 INFO L142 QuantifierPusher]: treesize reduction 2287, result has 14.1 percent of original size [2021-03-26 14:30:51,384 INFO L147 QuantifierPusher]: treesize reduction 59, result has 84.3 percent of original size 317 [2021-03-26 14:30:51,480 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:51,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:51,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:51,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:51,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102123329] [2021-03-26 14:30:51,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162821011] [2021-03-26 14:30:51,501 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 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 [2021-03-26 14:30:51,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:30:51,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:30:51,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 14:30:51,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:51,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:51,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:51,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:51,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:51,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,542 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,543 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,543 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:30:51,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:51,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:30:51,564 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-26 14:30:51,565 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:30:51,566 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:30:51,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:30:51,682 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-26 14:30:51,684 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.2 percent of original size [2021-03-26 14:30:51,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:30:51,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:51,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-26 14:30:51,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,689 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:51,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:51,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:51,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:51,739 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-26 14:30:51,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:30:51,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:30:51,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:30:51,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:30:51,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,744 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:30:51,744 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,744 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,745 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:30:51,745 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,746 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:30:51,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,747 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,747 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,748 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:30:51,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:51,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:51,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 14:30:51,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 14:30:51,799 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-26 14:30:51,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:51,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 14:30:51,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-26 14:30:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:30:51,803 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-26 14:30:51,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,804 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:51,805 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:51,805 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,806 INFO L142 QuantifierPusher]: treesize reduction 180, result has 31.0 percent of original size [2021-03-26 14:30:51,806 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:51,807 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,807 INFO L142 QuantifierPusher]: treesize reduction 79, result has 17.7 percent of original size [2021-03-26 14:30:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:51,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:51,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:51,833 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:30:51,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:51,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:51,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:30:51,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:51,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:30:51,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:51,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,838 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:30:51,838 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,839 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,839 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:30:51,839 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:30:51,839 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:51,840 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,840 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:30:51,840 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:30:51,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:51,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:51,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:51,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:30:51,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219859768] [2021-03-26 14:30:51,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:30:51,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:51,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:30:51,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:30:51,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-26 14:30:51,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 223 transitions, 3952 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:51,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:51,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-26 14:30:51,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:52,237 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-03-26 14:30:52,428 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-26 14:30:52,558 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2021-03-26 14:30:53,200 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2021-03-26 14:30:53,340 INFO L129 PetriNetUnfolder]: 210/595 cut-off events. [2021-03-26 14:30:53,340 INFO L130 PetriNetUnfolder]: For 34284/34316 co-relation queries the response was YES. [2021-03-26 14:30:53,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7177 conditions, 595 events. 210/595 cut-off events. For 34284/34316 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4084 event pairs, 13 based on Foata normal form. 13/605 useless extension candidates. Maximal degree in co-relation 7048. Up to 429 conditions per place. [2021-03-26 14:30:53,346 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 202 selfloop transitions, 39 changer transitions 7/252 dead transitions. [2021-03-26 14:30:53,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 252 transitions, 5490 flow [2021-03-26 14:30:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-26 14:30:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-26 14:30:53,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 291 transitions. [2021-03-26 14:30:53,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18725868725868725 [2021-03-26 14:30:53,347 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 291 transitions. [2021-03-26 14:30:53,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 291 transitions. [2021-03-26 14:30:53,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:53,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 291 transitions. [2021-03-26 14:30:53,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:53,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 74.0) internal successors, (1628), 22 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) [2021-03-26 14:30:53,349 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 74.0) internal successors, (1628), 22 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) [2021-03-26 14:30:53,349 INFO L185 Difference]: Start difference. First operand has 261 places, 223 transitions, 3952 flow. Second operand 21 states and 291 transitions. [2021-03-26 14:30:53,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 252 transitions, 5490 flow [2021-03-26 14:30:53,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 252 transitions, 4460 flow, removed 511 selfloop flow, removed 5 redundant places. [2021-03-26 14:30:53,465 INFO L241 Difference]: Finished difference. Result has 280 places, 237 transitions, 3826 flow [2021-03-26 14:30:53,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=3268, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3826, PETRI_PLACES=280, PETRI_TRANSITIONS=237} [2021-03-26 14:30:53,465 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 264 predicate places. [2021-03-26 14:30:53,465 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:53,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 237 transitions, 3826 flow [2021-03-26 14:30:53,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 237 transitions, 3826 flow [2021-03-26 14:30:53,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 237 transitions, 3826 flow [2021-03-26 14:30:53,527 INFO L129 PetriNetUnfolder]: 205/577 cut-off events. [2021-03-26 14:30:53,527 INFO L130 PetriNetUnfolder]: For 31689/31730 co-relation queries the response was YES. [2021-03-26 14:30:53,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6196 conditions, 577 events. 205/577 cut-off events. For 31689/31730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3915 event pairs, 10 based on Foata normal form. 1/575 useless extension candidates. Maximal degree in co-relation 6062. Up to 269 conditions per place. [2021-03-26 14:30:53,533 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 14:30:55,115 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:55,116 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 14:30:55,116 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1651 [2021-03-26 14:30:55,116 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 235 transitions, 3804 flow [2021-03-26 14:30:55,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:30:55,116 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:55,116 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:55,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable238 [2021-03-26 14:30:55,332 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:55,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:55,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1092187379, now seen corresponding path program 1 times [2021-03-26 14:30:55,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:55,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173994746] [2021-03-26 14:30:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:55,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,346 INFO L142 QuantifierPusher]: treesize reduction 67, result has 8.2 percent of original size [2021-03-26 14:30:55,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:55,351 INFO L142 QuantifierPusher]: treesize reduction 63, result has 31.5 percent of original size [2021-03-26 14:30:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:30:55,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:55,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173994746] [2021-03-26 14:30:55,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235291558] [2021-03-26 14:30:55,369 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 [2021-03-26 14:30:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:55,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:30:55,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:55,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:55,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:55,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,434 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:55,435 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:55,435 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:55,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:30:55,451 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 14:30:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:30:55,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.3 percent of original size [2021-03-26 14:30:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:55,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:30:55,488 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 14:30:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:55,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:55,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:55,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 14:30:55,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343296143] [2021-03-26 14:30:55,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 14:30:55,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:55,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 14:30:55,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 14:30:55,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2021-03-26 14:30:55,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 235 transitions, 3804 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:55,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:55,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2021-03-26 14:30:55,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:55,803 INFO L129 PetriNetUnfolder]: 207/572 cut-off events. [2021-03-26 14:30:55,803 INFO L130 PetriNetUnfolder]: For 32473/32534 co-relation queries the response was YES. [2021-03-26 14:30:55,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6683 conditions, 572 events. 207/572 cut-off events. For 32473/32534 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3829 event pairs, 13 based on Foata normal form. 16/586 useless extension candidates. Maximal degree in co-relation 6545. Up to 332 conditions per place. [2021-03-26 14:30:55,808 INFO L132 encePairwiseOnDemand]: 70/83 looper letters, 177 selfloop transitions, 25 changer transitions 1/238 dead transitions. [2021-03-26 14:30:55,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 238 transitions, 4393 flow [2021-03-26 14:30:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-03-26 14:30:55,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.270223752151463 [2021-03-26 14:30:55,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-03-26 14:30:55,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-03-26 14:30:55,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:55,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-03-26 14:30:55,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 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) [2021-03-26 14:30:55,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:55,811 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:55,811 INFO L185 Difference]: Start difference. First operand has 275 places, 235 transitions, 3804 flow. Second operand 7 states and 157 transitions. [2021-03-26 14:30:55,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 238 transitions, 4393 flow [2021-03-26 14:30:55,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 238 transitions, 3979 flow, removed 190 selfloop flow, removed 8 redundant places. [2021-03-26 14:30:55,925 INFO L241 Difference]: Finished difference. Result has 274 places, 233 transitions, 3461 flow [2021-03-26 14:30:55,925 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3461, PETRI_PLACES=274, PETRI_TRANSITIONS=233} [2021-03-26 14:30:55,925 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 258 predicate places. [2021-03-26 14:30:55,925 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:55,925 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 233 transitions, 3461 flow [2021-03-26 14:30:55,925 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 233 transitions, 3461 flow [2021-03-26 14:30:55,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 273 places, 233 transitions, 3461 flow [2021-03-26 14:30:55,986 INFO L129 PetriNetUnfolder]: 206/566 cut-off events. [2021-03-26 14:30:55,986 INFO L130 PetriNetUnfolder]: For 31950/31991 co-relation queries the response was YES. [2021-03-26 14:30:55,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6141 conditions, 566 events. 206/566 cut-off events. For 31950/31991 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3741 event pairs, 11 based on Foata normal form. 1/563 useless extension candidates. Maximal degree in co-relation 6007. Up to 266 conditions per place. [2021-03-26 14:30:55,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 14:30:56,001 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:56,001 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:56,001 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-26 14:30:56,001 INFO L480 AbstractCegarLoop]: Abstraction has has 273 places, 233 transitions, 3461 flow [2021-03-26 14:30:56,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:56,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:56,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:56,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable248 [2021-03-26 14:30:56,202 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:56,202 INFO L82 PathProgramCache]: Analyzing trace with hash -2131800975, now seen corresponding path program 1 times [2021-03-26 14:30:56,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:56,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229785089] [2021-03-26 14:30:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:56,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,215 INFO L142 QuantifierPusher]: treesize reduction 209, result has 4.6 percent of original size [2021-03-26 14:30:56,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:56,222 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-26 14:30:56,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:56,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:56,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:56,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229785089] [2021-03-26 14:30:56,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:56,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:56,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365945007] [2021-03-26 14:30:56,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:56,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:56,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:56,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:56,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-26 14:30:56,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 233 transitions, 3461 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:56,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:56,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-26 14:30:56,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:56,532 INFO L129 PetriNetUnfolder]: 211/577 cut-off events. [2021-03-26 14:30:56,532 INFO L130 PetriNetUnfolder]: For 34428/34460 co-relation queries the response was YES. [2021-03-26 14:30:56,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6799 conditions, 577 events. 211/577 cut-off events. For 34428/34460 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3808 event pairs, 17 based on Foata normal form. 12/585 useless extension candidates. Maximal degree in co-relation 6661. Up to 399 conditions per place. [2021-03-26 14:30:56,541 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 202 selfloop transitions, 29 changer transitions 0/237 dead transitions. [2021-03-26 14:30:56,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 237 transitions, 4255 flow [2021-03-26 14:30:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:30:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:30:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2021-03-26 14:30:56,542 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24784853700516352 [2021-03-26 14:30:56,542 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 144 transitions. [2021-03-26 14:30:56,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 144 transitions. [2021-03-26 14:30:56,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:56,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 144 transitions. [2021-03-26 14:30:56,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 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) [2021-03-26 14:30:56,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:56,543 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:56,543 INFO L185 Difference]: Start difference. First operand has 273 places, 233 transitions, 3461 flow. Second operand 7 states and 144 transitions. [2021-03-26 14:30:56,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 237 transitions, 4255 flow [2021-03-26 14:30:56,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 237 transitions, 4175 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:56,652 INFO L241 Difference]: Finished difference. Result has 274 places, 231 transitions, 3532 flow [2021-03-26 14:30:56,653 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3367, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3532, PETRI_PLACES=274, PETRI_TRANSITIONS=231} [2021-03-26 14:30:56,653 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 258 predicate places. [2021-03-26 14:30:56,653 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:56,653 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 231 transitions, 3532 flow [2021-03-26 14:30:56,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 231 transitions, 3532 flow [2021-03-26 14:30:56,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 231 transitions, 3532 flow [2021-03-26 14:30:56,719 INFO L129 PetriNetUnfolder]: 207/567 cut-off events. [2021-03-26 14:30:56,719 INFO L130 PetriNetUnfolder]: For 34351/34383 co-relation queries the response was YES. [2021-03-26 14:30:56,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6302 conditions, 567 events. 207/567 cut-off events. For 34351/34383 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3772 event pairs, 12 based on Foata normal form. 3/566 useless extension candidates. Maximal degree in co-relation 6167. Up to 272 conditions per place. [2021-03-26 14:30:56,726 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 14:30:56,733 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:56,733 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:56,733 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-26 14:30:56,733 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 231 transitions, 3532 flow [2021-03-26 14:30:56,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:56,734 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:56,734 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:56,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-26 14:30:56,734 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:56,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1670467524, now seen corresponding path program 1 times [2021-03-26 14:30:56,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:56,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641203199] [2021-03-26 14:30:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:56,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:56,767 INFO L142 QuantifierPusher]: treesize reduction 3834, result has 3.5 percent of original size [2021-03-26 14:30:56,768 INFO L147 QuantifierPusher]: treesize reduction 62, result has 54.7 percent of original size 75 [2021-03-26 14:30:56,811 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size [2021-03-26 14:30:56,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:30:56,826 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:30:56,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:30:56,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:30:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:56,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641203199] [2021-03-26 14:30:56,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4206945] [2021-03-26 14:30:56,844 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 [2021-03-26 14:30:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:56,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjunts are in the unsatisfiable core [2021-03-26 14:30:56,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:56,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:56,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:56,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:56,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:56,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,889 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:56,890 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,890 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:30:56,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:30:56,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:56,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:30:56,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,911 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:30:56,912 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,913 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:30:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:30:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:56,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:30:56,939 INFO L142 QuantifierPusher]: treesize reduction 10, result has 97.4 percent of original size [2021-03-26 14:30:56,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:30:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-26 14:30:56,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:56,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 579 [2021-03-26 14:30:56,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 614 [2021-03-26 14:30:56,946 INFO L142 QuantifierPusher]: treesize reduction 1874, result has 4.6 percent of original size [2021-03-26 14:30:56,948 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-26 14:30:56,948 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-26 14:30:56,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:30:57,011 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.8 percent of original size [2021-03-26 14:30:57,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:30:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:30:57,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 14:30:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-03-26 14:30:57,015 INFO L142 QuantifierPusher]: treesize reduction 39, result has 75.5 percent of original size [2021-03-26 14:30:57,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,016 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:30:57,016 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:30:57,017 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,017 INFO L142 QuantifierPusher]: treesize reduction 121, result has 42.9 percent of original size [2021-03-26 14:30:57,017 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:30:57,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,024 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-26 14:30:57,025 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:30:57,026 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,027 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-26 14:30:57,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:57,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:57,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:57,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:30:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:30:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:30:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:57,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:57,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:30:57,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420635481] [2021-03-26 14:30:57,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:30:57,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:57,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:30:57,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:30:57,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 83 [2021-03-26 14:30:57,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 231 transitions, 3532 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:57,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:57,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 83 [2021-03-26 14:30:57,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:57,522 INFO L129 PetriNetUnfolder]: 216/584 cut-off events. [2021-03-26 14:30:57,523 INFO L130 PetriNetUnfolder]: For 37185/37217 co-relation queries the response was YES. [2021-03-26 14:30:57,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7046 conditions, 584 events. 216/584 cut-off events. For 37185/37217 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3861 event pairs, 15 based on Foata normal form. 10/590 useless extension candidates. Maximal degree in co-relation 6907. Up to 439 conditions per place. [2021-03-26 14:30:57,529 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 205 selfloop transitions, 32 changer transitions 3/244 dead transitions. [2021-03-26 14:30:57,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 244 transitions, 4517 flow [2021-03-26 14:30:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:30:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:30:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 177 transitions. [2021-03-26 14:30:57,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19386637458926614 [2021-03-26 14:30:57,530 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 177 transitions. [2021-03-26 14:30:57,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 177 transitions. [2021-03-26 14:30:57,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:57,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 177 transitions. [2021-03-26 14:30:57,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 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) [2021-03-26 14:30:57,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:57,531 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:57,531 INFO L185 Difference]: Start difference. First operand has 274 places, 231 transitions, 3532 flow. Second operand 11 states and 177 transitions. [2021-03-26 14:30:57,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 244 transitions, 4517 flow [2021-03-26 14:30:57,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 244 transitions, 4361 flow, removed 52 selfloop flow, removed 4 redundant places. [2021-03-26 14:30:57,660 INFO L241 Difference]: Finished difference. Result has 283 places, 238 transitions, 3827 flow [2021-03-26 14:30:57,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3827, PETRI_PLACES=283, PETRI_TRANSITIONS=238} [2021-03-26 14:30:57,660 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 267 predicate places. [2021-03-26 14:30:57,660 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:57,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 238 transitions, 3827 flow [2021-03-26 14:30:57,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 238 transitions, 3827 flow [2021-03-26 14:30:57,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 280 places, 238 transitions, 3827 flow [2021-03-26 14:30:57,730 INFO L129 PetriNetUnfolder]: 212/570 cut-off events. [2021-03-26 14:30:57,730 INFO L130 PetriNetUnfolder]: For 37019/37060 co-relation queries the response was YES. [2021-03-26 14:30:57,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6533 conditions, 570 events. 212/570 cut-off events. For 37019/37060 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3741 event pairs, 10 based on Foata normal form. 1/567 useless extension candidates. Maximal degree in co-relation 6395. Up to 279 conditions per place. [2021-03-26 14:30:57,737 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-26 14:30:57,745 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:57,745 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:57,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-26 14:30:57,745 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 238 transitions, 3827 flow [2021-03-26 14:30:57,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:30:57,745 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:57,745 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:57,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:30:57,946 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:57,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:57,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1784984128, now seen corresponding path program 1 times [2021-03-26 14:30:57,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:57,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030657901] [2021-03-26 14:30:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:57,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:57,959 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-26 14:30:57,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:30:57,967 INFO L142 QuantifierPusher]: treesize reduction 63, result has 33.0 percent of original size [2021-03-26 14:30:57,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:30:57,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:30:57,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:57,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:57,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030657901] [2021-03-26 14:30:57,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:30:57,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:30:57,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193838452] [2021-03-26 14:30:57,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:30:57,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:57,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:30:57,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:30:57,985 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-26 14:30:57,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 238 transitions, 3827 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:57,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:57,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-26 14:30:57,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:58,207 INFO L129 PetriNetUnfolder]: 215/574 cut-off events. [2021-03-26 14:30:58,207 INFO L130 PetriNetUnfolder]: For 38002/38034 co-relation queries the response was YES. [2021-03-26 14:30:58,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7067 conditions, 574 events. 215/574 cut-off events. For 38002/38034 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3726 event pairs, 17 based on Foata normal form. 9/579 useless extension candidates. Maximal degree in co-relation 6925. Up to 416 conditions per place. [2021-03-26 14:30:58,230 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 209 selfloop transitions, 22 changer transitions 1/238 dead transitions. [2021-03-26 14:30:58,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 238 transitions, 4378 flow [2021-03-26 14:30:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:30:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:30:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-26 14:30:58,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26506024096385544 [2021-03-26 14:30:58,231 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-26 14:30:58,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-26 14:30:58,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:58,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-26 14:30:58,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:58,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:58,232 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:58,232 INFO L185 Difference]: Start difference. First operand has 280 places, 238 transitions, 3827 flow. Second operand 5 states and 110 transitions. [2021-03-26 14:30:58,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 238 transitions, 4378 flow [2021-03-26 14:30:58,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 238 transitions, 4036 flow, removed 160 selfloop flow, removed 3 redundant places. [2021-03-26 14:30:58,366 INFO L241 Difference]: Finished difference. Result has 278 places, 234 transitions, 3492 flow [2021-03-26 14:30:58,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3466, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3492, PETRI_PLACES=278, PETRI_TRANSITIONS=234} [2021-03-26 14:30:58,366 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 262 predicate places. [2021-03-26 14:30:58,366 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:58,366 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 234 transitions, 3492 flow [2021-03-26 14:30:58,366 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 234 transitions, 3492 flow [2021-03-26 14:30:58,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 234 transitions, 3492 flow [2021-03-26 14:30:58,432 INFO L129 PetriNetUnfolder]: 211/563 cut-off events. [2021-03-26 14:30:58,432 INFO L130 PetriNetUnfolder]: For 35546/35581 co-relation queries the response was YES. [2021-03-26 14:30:58,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6311 conditions, 563 events. 211/563 cut-off events. For 35546/35581 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3677 event pairs, 15 based on Foata normal form. 1/559 useless extension candidates. Maximal degree in co-relation 6172. Up to 270 conditions per place. [2021-03-26 14:30:58,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 14:30:58,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:58,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:58,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-26 14:30:58,465 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 234 transitions, 3492 flow [2021-03-26 14:30:58,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:58,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:58,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:58,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-26 14:30:58,465 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:58,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:58,465 INFO L82 PathProgramCache]: Analyzing trace with hash -905487154, now seen corresponding path program 1 times [2021-03-26 14:30:58,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:58,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154652337] [2021-03-26 14:30:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:58,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:30:58,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:58,509 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-26 14:30:58,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:30:58,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:58,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154652337] [2021-03-26 14:30:58,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486052736] [2021-03-26 14:30:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:30:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:58,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-26 14:30:58,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:30:58,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:30:58,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:30:58,589 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 14:30:58,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:58,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:30:58,634 INFO L142 QuantifierPusher]: treesize reduction 65, result has 50.0 percent of original size [2021-03-26 14:30:58,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:30:58,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:30:58,637 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.8 percent of original size [2021-03-26 14:30:58,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:30:58,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:30:58,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1275 [2021-03-26 14:30:58,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2668 [2021-03-26 14:30:58,701 INFO L142 QuantifierPusher]: treesize reduction 11115, result has 1.0 percent of original size [2021-03-26 14:30:58,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-26 14:30:58,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-26 14:30:58,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 14:30:58,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:30:58,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 14:30:58,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-03-26 14:30:58,770 INFO L142 QuantifierPusher]: treesize reduction 76, result has 38.7 percent of original size [2021-03-26 14:30:58,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:58,790 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:30:58,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:30:58,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:30:58,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:30:58,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293071106] [2021-03-26 14:30:58,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:30:58,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:30:58,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:30:58,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:30:58,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-26 14:30:58,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 234 transitions, 3492 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:58,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:30:58,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-26 14:30:58,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:30:59,486 INFO L129 PetriNetUnfolder]: 216/576 cut-off events. [2021-03-26 14:30:59,486 INFO L130 PetriNetUnfolder]: For 38105/38137 co-relation queries the response was YES. [2021-03-26 14:30:59,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6984 conditions, 576 events. 216/576 cut-off events. For 38105/38137 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3755 event pairs, 8 based on Foata normal form. 11/582 useless extension candidates. Maximal degree in co-relation 6874. Up to 305 conditions per place. [2021-03-26 14:30:59,492 INFO L132 encePairwiseOnDemand]: 61/83 looper letters, 177 selfloop transitions, 67 changer transitions 1/251 dead transitions. [2021-03-26 14:30:59,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 251 transitions, 4894 flow [2021-03-26 14:30:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 14:30:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 14:30:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 257 transitions. [2021-03-26 14:30:59,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20642570281124498 [2021-03-26 14:30:59,493 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 257 transitions. [2021-03-26 14:30:59,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 257 transitions. [2021-03-26 14:30:59,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:30:59,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 257 transitions. [2021-03-26 14:30:59,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 17.133333333333333) internal successors, (257), 15 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:59,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 83.0) internal successors, (1328), 16 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:59,495 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 83.0) internal successors, (1328), 16 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:59,495 INFO L185 Difference]: Start difference. First operand has 274 places, 234 transitions, 3492 flow. Second operand 15 states and 257 transitions. [2021-03-26 14:30:59,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 251 transitions, 4894 flow [2021-03-26 14:30:59,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 251 transitions, 4822 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-26 14:30:59,619 INFO L241 Difference]: Finished difference. Result has 280 places, 228 transitions, 3533 flow [2021-03-26 14:30:59,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3350, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3533, PETRI_PLACES=280, PETRI_TRANSITIONS=228} [2021-03-26 14:30:59,619 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 264 predicate places. [2021-03-26 14:30:59,619 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:30:59,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 228 transitions, 3533 flow [2021-03-26 14:30:59,619 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 228 transitions, 3533 flow [2021-03-26 14:30:59,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 228 transitions, 3533 flow [2021-03-26 14:30:59,687 INFO L129 PetriNetUnfolder]: 212/564 cut-off events. [2021-03-26 14:30:59,687 INFO L130 PetriNetUnfolder]: For 36000/36032 co-relation queries the response was YES. [2021-03-26 14:30:59,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6434 conditions, 564 events. 212/564 cut-off events. For 36000/36032 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3676 event pairs, 17 based on Foata normal form. 3/562 useless extension candidates. Maximal degree in co-relation 6297. Up to 276 conditions per place. [2021-03-26 14:30:59,695 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 14:30:59,706 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:30:59,707 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:30:59,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-26 14:30:59,707 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 228 transitions, 3533 flow [2021-03-26 14:30:59,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:30:59,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:30:59,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:30:59,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-03-26 14:30:59,931 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:30:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:30:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2053366523, now seen corresponding path program 1 times [2021-03-26 14:30:59,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:30:59,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154846422] [2021-03-26 14:30:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:30:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:30:59,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:59,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:30:59,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:59,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:30:59,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:59,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:30:59,964 INFO L142 QuantifierPusher]: treesize reduction 17, result has 57.5 percent of original size [2021-03-26 14:30:59,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:30:59,978 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 14:30:59,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:30:59,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:30:59,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:30:59,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:00,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154846422] [2021-03-26 14:31:00,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626651910] [2021-03-26 14:31:00,000 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 [2021-03-26 14:31:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:00,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:31:00,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:00,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:00,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:00,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:00,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:00,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,063 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:00,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:00,064 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:00,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:00,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:00,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:00,078 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 14:31:00,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:00,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:31:00,079 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:31:00,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:00,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:00,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:00,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:00,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:00,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-26 14:31:00,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,100 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:00,100 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:00,100 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:00,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:00,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:00,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:00,129 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-26 14:31:00,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:00,153 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 14:31:00,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:00,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:00,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:31:00,156 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 14:31:00,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:00,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:00,158 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:00,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:00,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:00,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:00,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 14:31:00,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557293390] [2021-03-26 14:31:00,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:31:00,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:00,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:31:00,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:31:00,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-26 14:31:00,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 228 transitions, 3533 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:31:00,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:00,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-26 14:31:00,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:00,546 INFO L129 PetriNetUnfolder]: 218/571 cut-off events. [2021-03-26 14:31:00,546 INFO L130 PetriNetUnfolder]: For 38125/38157 co-relation queries the response was YES. [2021-03-26 14:31:00,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7031 conditions, 571 events. 218/571 cut-off events. For 38125/38157 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3636 event pairs, 12 based on Foata normal form. 11/577 useless extension candidates. Maximal degree in co-relation 6890. Up to 282 conditions per place. [2021-03-26 14:31:00,555 INFO L132 encePairwiseOnDemand]: 61/83 looper letters, 187 selfloop transitions, 53 changer transitions 0/246 dead transitions. [2021-03-26 14:31:00,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 246 transitions, 4777 flow [2021-03-26 14:31:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2021-03-26 14:31:00,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2289156626506024 [2021-03-26 14:31:00,556 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 190 transitions. [2021-03-26 14:31:00,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 190 transitions. [2021-03-26 14:31:00,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:00,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 190 transitions. [2021-03-26 14:31:00,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:00,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:00,558 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:00,558 INFO L185 Difference]: Start difference. First operand has 279 places, 228 transitions, 3533 flow. Second operand 10 states and 190 transitions. [2021-03-26 14:31:00,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 246 transitions, 4777 flow [2021-03-26 14:31:00,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 246 transitions, 4641 flow, removed 11 selfloop flow, removed 8 redundant places. [2021-03-26 14:31:00,722 INFO L241 Difference]: Finished difference. Result has 281 places, 229 transitions, 3553 flow [2021-03-26 14:31:00,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3397, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3553, PETRI_PLACES=281, PETRI_TRANSITIONS=229} [2021-03-26 14:31:00,722 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 265 predicate places. [2021-03-26 14:31:00,722 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:00,722 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 229 transitions, 3553 flow [2021-03-26 14:31:00,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 229 transitions, 3553 flow [2021-03-26 14:31:00,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 229 transitions, 3553 flow [2021-03-26 14:31:00,802 INFO L129 PetriNetUnfolder]: 214/567 cut-off events. [2021-03-26 14:31:00,802 INFO L130 PetriNetUnfolder]: For 36372/36407 co-relation queries the response was YES. [2021-03-26 14:31:00,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6478 conditions, 567 events. 214/567 cut-off events. For 36372/36407 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3682 event pairs, 11 based on Foata normal form. 1/563 useless extension candidates. Maximal degree in co-relation 6340. Up to 279 conditions per place. [2021-03-26 14:31:00,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 14:31:01,017 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:01,017 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:01,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 296 [2021-03-26 14:31:01,018 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 229 transitions, 3588 flow [2021-03-26 14:31:01,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:31:01,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:01,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:01,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:01,232 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:01,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:01,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1480069583, now seen corresponding path program 1 times [2021-03-26 14:31:01,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:01,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369007187] [2021-03-26 14:31:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:01,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:01,253 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-26 14:31:01,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:01,259 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.3 percent of original size [2021-03-26 14:31:01,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:01,280 INFO L142 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-03-26 14:31:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:31:01,307 INFO L142 QuantifierPusher]: treesize reduction 31, result has 50.0 percent of original size [2021-03-26 14:31:01,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:01,326 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:01,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:01,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:01,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369007187] [2021-03-26 14:31:01,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594517973] [2021-03-26 14:31:01,355 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 [2021-03-26 14:31:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:01,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:31:01,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:01,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:01,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:01,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:01,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:01,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:01,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:01,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,419 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,420 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,420 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:01,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:01,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:01,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:01,440 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.0 percent of original size [2021-03-26 14:31:01,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:01,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:01,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:01,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 14:31:01,444 INFO L142 QuantifierPusher]: treesize reduction 23, result has 78.1 percent of original size [2021-03-26 14:31:01,445 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-26 14:31:01,445 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-26 14:31:01,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:01,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:01,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:01,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:01,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:01,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:01,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:01,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,487 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,488 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,488 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 14:31:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 14:31:01,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:31:01,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:31:01,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:31:01,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:31:01,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,540 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:31:01,540 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,541 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,541 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:31:01,541 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,541 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:31:01,543 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,543 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,543 INFO L142 QuantifierPusher]: treesize reduction 48, result has 61.0 percent of original size [2021-03-26 14:31:01,544 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,544 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,544 INFO L142 QuantifierPusher]: treesize reduction 36, result has 45.5 percent of original size [2021-03-26 14:31:01,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:01,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:01,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:01,582 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-26 14:31:01,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:01,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:31:01,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 14:31:01,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 14:31:01,587 INFO L142 QuantifierPusher]: treesize reduction 214, result has 44.3 percent of original size [2021-03-26 14:31:01,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,589 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:01,589 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:01,589 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,590 INFO L142 QuantifierPusher]: treesize reduction 176, result has 38.7 percent of original size [2021-03-26 14:31:01,591 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:01,591 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,592 INFO L142 QuantifierPusher]: treesize reduction 105, result has 30.5 percent of original size [2021-03-26 14:31:01,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:01,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:01,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:01,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:01,623 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:31:01,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:01,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:31:01,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:31:01,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:31:01,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,629 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:31:01,629 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:01,630 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,631 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:31:01,631 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:01,632 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:01,632 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-26 14:31:01,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:01,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:01,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:01,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:01,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668276805] [2021-03-26 14:31:01,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:01,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:01,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:01,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:01,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 84 [2021-03-26 14:31:01,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 229 transitions, 3588 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:01,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:01,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 84 [2021-03-26 14:31:01,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:02,876 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-03-26 14:31:03,030 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2021-03-26 14:31:03,240 INFO L129 PetriNetUnfolder]: 222/595 cut-off events. [2021-03-26 14:31:03,240 INFO L130 PetriNetUnfolder]: For 39667/39699 co-relation queries the response was YES. [2021-03-26 14:31:03,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7422 conditions, 595 events. 222/595 cut-off events. For 39667/39699 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3930 event pairs, 9 based on Foata normal form. 9/599 useless extension candidates. Maximal degree in co-relation 7268. Up to 356 conditions per place. [2021-03-26 14:31:03,246 INFO L132 encePairwiseOnDemand]: 60/84 looper letters, 193 selfloop transitions, 64 changer transitions 2/263 dead transitions. [2021-03-26 14:31:03,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 263 transitions, 5472 flow [2021-03-26 14:31:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-26 14:31:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-26 14:31:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 276 transitions. [2021-03-26 14:31:03,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17293233082706766 [2021-03-26 14:31:03,247 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 276 transitions. [2021-03-26 14:31:03,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 276 transitions. [2021-03-26 14:31:03,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:03,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 276 transitions. [2021-03-26 14:31:03,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 14.526315789473685) internal successors, (276), 19 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:03,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 84.0) internal successors, (1680), 20 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:03,249 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 84.0) internal successors, (1680), 20 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:03,249 INFO L185 Difference]: Start difference. First operand has 281 places, 229 transitions, 3588 flow. Second operand 19 states and 276 transitions. [2021-03-26 14:31:03,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 263 transitions, 5472 flow [2021-03-26 14:31:03,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 263 transitions, 5271 flow, removed 69 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:03,382 INFO L241 Difference]: Finished difference. Result has 298 places, 237 transitions, 3883 flow [2021-03-26 14:31:03,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=3456, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3883, PETRI_PLACES=298, PETRI_TRANSITIONS=237} [2021-03-26 14:31:03,383 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 282 predicate places. [2021-03-26 14:31:03,383 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:03,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 237 transitions, 3883 flow [2021-03-26 14:31:03,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 237 transitions, 3883 flow [2021-03-26 14:31:03,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 297 places, 237 transitions, 3883 flow [2021-03-26 14:31:03,453 INFO L129 PetriNetUnfolder]: 218/586 cut-off events. [2021-03-26 14:31:03,453 INFO L130 PetriNetUnfolder]: For 40078/40110 co-relation queries the response was YES. [2021-03-26 14:31:03,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6955 conditions, 586 events. 218/586 cut-off events. For 40078/40110 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3879 event pairs, 10 based on Foata normal form. 3/584 useless extension candidates. Maximal degree in co-relation 6812. Up to 291 conditions per place. [2021-03-26 14:31:03,460 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 14:31:03,815 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:03,816 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:31:03,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 433 [2021-03-26 14:31:03,816 INFO L480 AbstractCegarLoop]: Abstraction has has 296 places, 236 transitions, 3895 flow [2021-03-26 14:31:03,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:03,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:03,816 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:04,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:04,017 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1734337477, now seen corresponding path program 2 times [2021-03-26 14:31:04,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:04,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75747168] [2021-03-26 14:31:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:04,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,039 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 14:31:04,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:31:04,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:31:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:04,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:04,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75747168] [2021-03-26 14:31:04,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353381857] [2021-03-26 14:31:04,073 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 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 [2021-03-26 14:31:04,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:04,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:04,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:04,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:04,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:04,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:04,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:04,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:04,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,133 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:04,134 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:04,134 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:04,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:04,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:04,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:04,148 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 14:31:04,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:31:04,149 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:31:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:04,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-03-26 14:31:04,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:04,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 471 [2021-03-26 14:31:04,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 472 [2021-03-26 14:31:04,172 INFO L142 QuantifierPusher]: treesize reduction 645, result has 16.7 percent of original size [2021-03-26 14:31:04,176 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:04,177 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:04,177 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 14:31:04,178 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:04,178 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:04,179 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-26 14:31:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:04,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:04,200 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:31:04,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:04,204 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:04,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:04,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:04,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:04,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:04,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558612080] [2021-03-26 14:31:04,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:04,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:04,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:04,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:04,210 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-26 14:31:04,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 236 transitions, 3895 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:04,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:04,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-26 14:31:04,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:04,594 INFO L129 PetriNetUnfolder]: 222/585 cut-off events. [2021-03-26 14:31:04,594 INFO L130 PetriNetUnfolder]: For 40517/40525 co-relation queries the response was YES. [2021-03-26 14:31:04,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7481 conditions, 585 events. 222/585 cut-off events. For 40517/40525 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3794 event pairs, 10 based on Foata normal form. 2/582 useless extension candidates. Maximal degree in co-relation 7320. Up to 294 conditions per place. [2021-03-26 14:31:04,600 INFO L132 encePairwiseOnDemand]: 63/86 looper letters, 194 selfloop transitions, 54 changer transitions 0/254 dead transitions. [2021-03-26 14:31:04,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 254 transitions, 5164 flow [2021-03-26 14:31:04,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2021-03-26 14:31:04,601 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22209302325581395 [2021-03-26 14:31:04,601 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 191 transitions. [2021-03-26 14:31:04,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 191 transitions. [2021-03-26 14:31:04,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:04,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 191 transitions. [2021-03-26 14:31:04,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.1) internal successors, (191), 10 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:04,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:04,602 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:04,602 INFO L185 Difference]: Start difference. First operand has 296 places, 236 transitions, 3895 flow. Second operand 10 states and 191 transitions. [2021-03-26 14:31:04,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 254 transitions, 5164 flow [2021-03-26 14:31:04,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 254 transitions, 4937 flow, removed 95 selfloop flow, removed 9 redundant places. [2021-03-26 14:31:04,747 INFO L241 Difference]: Finished difference. Result has 298 places, 238 transitions, 3848 flow [2021-03-26 14:31:04,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3678, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3848, PETRI_PLACES=298, PETRI_TRANSITIONS=238} [2021-03-26 14:31:04,747 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 282 predicate places. [2021-03-26 14:31:04,748 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:04,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 238 transitions, 3848 flow [2021-03-26 14:31:04,748 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 238 transitions, 3848 flow [2021-03-26 14:31:04,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 238 transitions, 3848 flow [2021-03-26 14:31:04,818 INFO L129 PetriNetUnfolder]: 218/581 cut-off events. [2021-03-26 14:31:04,819 INFO L130 PetriNetUnfolder]: For 39666/39698 co-relation queries the response was YES. [2021-03-26 14:31:04,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 581 events. 218/581 cut-off events. For 39666/39698 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3825 event pairs, 12 based on Foata normal form. 3/579 useless extension candidates. Maximal degree in co-relation 6748. Up to 286 conditions per place. [2021-03-26 14:31:04,829 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 14:31:04,837 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:04,837 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:04,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-26 14:31:04,837 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 238 transitions, 3848 flow [2021-03-26 14:31:04,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:04,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:04,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:05,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:05,043 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:05,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:05,043 INFO L82 PathProgramCache]: Analyzing trace with hash -826615451, now seen corresponding path program 1 times [2021-03-26 14:31:05,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:05,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534989064] [2021-03-26 14:31:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:05,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,072 INFO L142 QuantifierPusher]: treesize reduction 4234, result has 3.3 percent of original size [2021-03-26 14:31:05,073 INFO L147 QuantifierPusher]: treesize reduction 96, result has 34.2 percent of original size 50 [2021-03-26 14:31:05,117 INFO L142 QuantifierPusher]: treesize reduction 6553, result has 2.9 percent of original size [2021-03-26 14:31:05,118 INFO L147 QuantifierPusher]: treesize reduction 85, result has 56.6 percent of original size 111 [2021-03-26 14:31:05,189 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 14:31:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:05,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:05,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:05,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534989064] [2021-03-26 14:31:05,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189043974] [2021-03-26 14:31:05,213 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 [2021-03-26 14:31:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:05,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:05,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:05,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:05,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:05,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:05,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:05,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,259 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:05,260 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:05,260 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:05,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:05,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:05,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:05,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:05,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,279 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:05,280 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:05,281 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:05,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:05,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:05,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:05,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 95.3 percent of original size [2021-03-26 14:31:05,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 14:31:05,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 14:31:05,306 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.1 percent of original size [2021-03-26 14:31:05,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:05,332 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 14:31:05,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:31:05,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:05,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:05,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:05,336 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-26 14:31:05,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:05,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:05,339 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:05,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:05,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:05,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759825431] [2021-03-26 14:31:05,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:05,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:05,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:05,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:05,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-26 14:31:05,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 238 transitions, 3848 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:05,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:05,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-26 14:31:05,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:05,861 INFO L129 PetriNetUnfolder]: 241/667 cut-off events. [2021-03-26 14:31:05,862 INFO L130 PetriNetUnfolder]: For 51655/51663 co-relation queries the response was YES. [2021-03-26 14:31:05,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8724 conditions, 667 events. 241/667 cut-off events. For 51655/51663 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4636 event pairs, 1 based on Foata normal form. 4/665 useless extension candidates. Maximal degree in co-relation 8546. Up to 341 conditions per place. [2021-03-26 14:31:05,869 INFO L132 encePairwiseOnDemand]: 56/86 looper letters, 158 selfloop transitions, 119 changer transitions 2/285 dead transitions. [2021-03-26 14:31:05,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 285 transitions, 5552 flow [2021-03-26 14:31:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2021-03-26 14:31:05,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22209302325581395 [2021-03-26 14:31:05,870 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 191 transitions. [2021-03-26 14:31:05,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 191 transitions. [2021-03-26 14:31:05,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:05,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 191 transitions. [2021-03-26 14:31:05,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.1) internal successors, (191), 10 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:05,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:05,871 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:05,872 INFO L185 Difference]: Start difference. First operand has 298 places, 238 transitions, 3848 flow. Second operand 10 states and 191 transitions. [2021-03-26 14:31:05,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 285 transitions, 5552 flow [2021-03-26 14:31:06,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 285 transitions, 5379 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-26 14:31:06,042 INFO L241 Difference]: Finished difference. Result has 303 places, 275 transitions, 5021 flow [2021-03-26 14:31:06,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3695, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5021, PETRI_PLACES=303, PETRI_TRANSITIONS=275} [2021-03-26 14:31:06,043 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 287 predicate places. [2021-03-26 14:31:06,043 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:06,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 275 transitions, 5021 flow [2021-03-26 14:31:06,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 275 transitions, 5021 flow [2021-03-26 14:31:06,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 303 places, 275 transitions, 5021 flow [2021-03-26 14:31:06,143 INFO L129 PetriNetUnfolder]: 238/654 cut-off events. [2021-03-26 14:31:06,143 INFO L130 PetriNetUnfolder]: For 52502/52517 co-relation queries the response was YES. [2021-03-26 14:31:06,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8501 conditions, 654 events. 238/654 cut-off events. For 52502/52517 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4590 event pairs, 9 based on Foata normal form. 11/663 useless extension candidates. Maximal degree in co-relation 8325. Up to 330 conditions per place. [2021-03-26 14:31:06,152 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 14:31:06,161 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:06,161 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:06,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-26 14:31:06,161 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 275 transitions, 5021 flow [2021-03-26 14:31:06,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:06,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:06,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:06,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable277 [2021-03-26 14:31:06,362 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:06,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1585916963, now seen corresponding path program 1 times [2021-03-26 14:31:06,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:06,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648944816] [2021-03-26 14:31:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:06,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:06,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:06,377 INFO L142 QuantifierPusher]: treesize reduction 209, result has 4.6 percent of original size [2021-03-26 14:31:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:06,385 INFO L142 QuantifierPusher]: treesize reduction 228, result has 11.6 percent of original size [2021-03-26 14:31:06,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:06,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:06,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:06,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:06,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:06,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:06,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:06,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648944816] [2021-03-26 14:31:06,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:31:06,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:31:06,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034311241] [2021-03-26 14:31:06,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:31:06,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:31:06,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:31:06,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-26 14:31:06,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 275 transitions, 5021 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:31:06,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:06,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-26 14:31:06,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:06,675 INFO L129 PetriNetUnfolder]: 240/656 cut-off events. [2021-03-26 14:31:06,675 INFO L130 PetriNetUnfolder]: For 54191/54223 co-relation queries the response was YES. [2021-03-26 14:31:06,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9092 conditions, 656 events. 240/656 cut-off events. For 54191/54223 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4501 event pairs, 14 based on Foata normal form. 9/663 useless extension candidates. Maximal degree in co-relation 8939. Up to 471 conditions per place. [2021-03-26 14:31:06,683 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 244 selfloop transitions, 26 changer transitions 1/277 dead transitions. [2021-03-26 14:31:06,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 277 transitions, 5683 flow [2021-03-26 14:31:06,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:31:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:31:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2021-03-26 14:31:06,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24612403100775193 [2021-03-26 14:31:06,684 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 127 transitions. [2021-03-26 14:31:06,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 127 transitions. [2021-03-26 14:31:06,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:06,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 127 transitions. [2021-03-26 14:31:06,684 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) [2021-03-26 14:31:06,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:06,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:06,685 INFO L185 Difference]: Start difference. First operand has 303 places, 275 transitions, 5021 flow. Second operand 6 states and 127 transitions. [2021-03-26 14:31:06,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 277 transitions, 5683 flow [2021-03-26 14:31:06,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 277 transitions, 5464 flow, removed 92 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:06,903 INFO L241 Difference]: Finished difference. Result has 302 places, 272 transitions, 4816 flow [2021-03-26 14:31:06,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=4772, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4816, PETRI_PLACES=302, PETRI_TRANSITIONS=272} [2021-03-26 14:31:06,903 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 286 predicate places. [2021-03-26 14:31:06,903 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:06,903 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 272 transitions, 4816 flow [2021-03-26 14:31:06,903 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 272 transitions, 4816 flow [2021-03-26 14:31:06,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 272 transitions, 4816 flow [2021-03-26 14:31:06,987 INFO L129 PetriNetUnfolder]: 237/648 cut-off events. [2021-03-26 14:31:06,987 INFO L130 PetriNetUnfolder]: For 47424/47442 co-relation queries the response was YES. [2021-03-26 14:31:06,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8164 conditions, 648 events. 237/648 cut-off events. For 47424/47442 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4519 event pairs, 8 based on Foata normal form. 9/655 useless extension candidates. Maximal degree in co-relation 8011. Up to 326 conditions per place. [2021-03-26 14:31:06,996 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 14:31:07,005 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:07,005 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:07,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-03-26 14:31:07,005 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 272 transitions, 4816 flow [2021-03-26 14:31:07,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:31:07,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:07,005 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:07,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-26 14:31:07,006 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:07,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:07,006 INFO L82 PathProgramCache]: Analyzing trace with hash 542500454, now seen corresponding path program 1 times [2021-03-26 14:31:07,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:07,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692749830] [2021-03-26 14:31:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:07,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:07,037 INFO L142 QuantifierPusher]: treesize reduction 46, result has 31.3 percent of original size [2021-03-26 14:31:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:07,047 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 14:31:07,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:07,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:07,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:07,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692749830] [2021-03-26 14:31:07,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457577735] [2021-03-26 14:31:07,067 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) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:07,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:31:07,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:07,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:07,121 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 14:31:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:07,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:07,157 INFO L142 QuantifierPusher]: treesize reduction 65, result has 40.4 percent of original size [2021-03-26 14:31:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:07,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:07,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:07,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:07,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,160 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:07,160 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:07,160 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:07,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 14:31:07,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 14:31:07,185 INFO L142 QuantifierPusher]: treesize reduction 158, result has 25.8 percent of original size [2021-03-26 14:31:07,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:07,215 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-26 14:31:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:07,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:07,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:31:07,218 INFO L142 QuantifierPusher]: treesize reduction 183, result has 20.8 percent of original size [2021-03-26 14:31:07,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:07,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:07,221 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:07,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:07,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:07,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:07,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820061020] [2021-03-26 14:31:07,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:07,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:07,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:07,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:07,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 86 [2021-03-26 14:31:07,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 272 transitions, 4816 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:07,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:07,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 86 [2021-03-26 14:31:07,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:07,688 INFO L129 PetriNetUnfolder]: 239/654 cut-off events. [2021-03-26 14:31:07,688 INFO L130 PetriNetUnfolder]: For 49235/49273 co-relation queries the response was YES. [2021-03-26 14:31:07,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8708 conditions, 654 events. 239/654 cut-off events. For 49235/49273 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4484 event pairs, 9 based on Foata normal form. 3/657 useless extension candidates. Maximal degree in co-relation 8554. Up to 330 conditions per place. [2021-03-26 14:31:07,699 INFO L132 encePairwiseOnDemand]: 67/86 looper letters, 202 selfloop transitions, 56 changer transitions 0/288 dead transitions. [2021-03-26 14:31:07,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 288 transitions, 6132 flow [2021-03-26 14:31:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:31:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:31:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 242 transitions. [2021-03-26 14:31:07,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23449612403100775 [2021-03-26 14:31:07,705 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 242 transitions. [2021-03-26 14:31:07,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 242 transitions. [2021-03-26 14:31:07,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:07,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 242 transitions. [2021-03-26 14:31:07,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 20.166666666666668) internal successors, (242), 12 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:07,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:07,706 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:07,706 INFO L185 Difference]: Start difference. First operand has 301 places, 272 transitions, 4816 flow. Second operand 12 states and 242 transitions. [2021-03-26 14:31:07,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 288 transitions, 6132 flow [2021-03-26 14:31:07,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 288 transitions, 6081 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 14:31:07,901 INFO L241 Difference]: Finished difference. Result has 309 places, 273 transitions, 4924 flow [2021-03-26 14:31:07,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=4765, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4924, PETRI_PLACES=309, PETRI_TRANSITIONS=273} [2021-03-26 14:31:07,902 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 293 predicate places. [2021-03-26 14:31:07,902 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:07,902 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 273 transitions, 4924 flow [2021-03-26 14:31:07,902 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 273 transitions, 4924 flow [2021-03-26 14:31:07,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 273 transitions, 4924 flow [2021-03-26 14:31:07,993 INFO L129 PetriNetUnfolder]: 239/653 cut-off events. [2021-03-26 14:31:07,993 INFO L130 PetriNetUnfolder]: For 49958/49973 co-relation queries the response was YES. [2021-03-26 14:31:07,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8408 conditions, 653 events. 239/653 cut-off events. For 49958/49973 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4545 event pairs, 8 based on Foata normal form. 11/662 useless extension candidates. Maximal degree in co-relation 8253. Up to 330 conditions per place. [2021-03-26 14:31:08,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 14:31:08,198 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:08,198 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:08,198 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 296 [2021-03-26 14:31:08,198 INFO L480 AbstractCegarLoop]: Abstraction has has 309 places, 273 transitions, 4959 flow [2021-03-26 14:31:08,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:08,199 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:08,199 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:08,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable281 [2021-03-26 14:31:08,399 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash 129839127, now seen corresponding path program 1 times [2021-03-26 14:31:08,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:08,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607735706] [2021-03-26 14:31:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:08,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:08,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:08,430 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-03-26 14:31:08,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:31:08,457 INFO L142 QuantifierPusher]: treesize reduction 172, result has 30.9 percent of original size [2021-03-26 14:31:08,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:08,520 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 14:31:08,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:08,541 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:08,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:08,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:08,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607735706] [2021-03-26 14:31:08,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184933847] [2021-03-26 14:31:08,565 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 [2021-03-26 14:31:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:08,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:31:08,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:08,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:08,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:08,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:08,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:08,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:08,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:08,629 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 14:31:08,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:31:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-03-26 14:31:08,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:08,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:31:08,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 794 [2021-03-26 14:31:08,688 INFO L142 QuantifierPusher]: treesize reduction 582, result has 27.2 percent of original size [2021-03-26 14:31:08,690 INFO L147 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size 204 [2021-03-26 14:31:08,691 INFO L142 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-03-26 14:31:08,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 14:31:08,932 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-03-26 14:31:08,934 INFO L142 QuantifierPusher]: treesize reduction 21, result has 90.0 percent of original size [2021-03-26 14:31:08,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:08,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:31:08,937 INFO L147 QuantifierPusher]: treesize reduction 40, result has 78.9 percent of original size 150 [2021-03-26 14:31:08,938 INFO L142 QuantifierPusher]: treesize reduction 40, result has 79.1 percent of original size [2021-03-26 14:31:08,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:08,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-26 14:31:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,942 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:08,942 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:08,943 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:08,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:31:08,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:31:09,014 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-26 14:31:09,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:09,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:31:09,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:31:09,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-26 14:31:09,020 INFO L142 QuantifierPusher]: treesize reduction 107, result has 65.1 percent of original size [2021-03-26 14:31:09,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,021 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:09,022 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:31:09,022 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,023 INFO L142 QuantifierPusher]: treesize reduction 188, result has 47.3 percent of original size [2021-03-26 14:31:09,024 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:09,024 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,025 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.6 percent of original size [2021-03-26 14:31:09,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:09,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:09,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:09,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:09,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:31:09,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:31:09,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:31:09,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:31:09,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,064 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:31:09,064 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:09,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,066 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 14:31:09,066 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-26 14:31:09,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:09,095 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:31:09,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:09,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:31:09,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:31:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:31:09,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,100 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:31:09,100 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:09,100 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,101 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:31:09,102 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:09,102 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:09,103 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-26 14:31:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:09,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:09,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:09,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:09,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360387449] [2021-03-26 14:31:09,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:09,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:09,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:09,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:09,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 87 [2021-03-26 14:31:09,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 273 transitions, 4959 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:09,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:09,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 87 [2021-03-26 14:31:09,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:09,301 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-26 14:31:09,560 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-03-26 14:31:09,726 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-03-26 14:31:09,967 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-26 14:31:10,844 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2021-03-26 14:31:10,930 INFO L129 PetriNetUnfolder]: 255/708 cut-off events. [2021-03-26 14:31:10,930 INFO L130 PetriNetUnfolder]: For 57292/57324 co-relation queries the response was YES. [2021-03-26 14:31:10,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10037 conditions, 708 events. 255/708 cut-off events. For 57292/57324 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5036 event pairs, 13 based on Foata normal form. 12/718 useless extension candidates. Maximal degree in co-relation 9877. Up to 517 conditions per place. [2021-03-26 14:31:10,938 INFO L132 encePairwiseOnDemand]: 70/87 looper letters, 246 selfloop transitions, 51 changer transitions 5/306 dead transitions. [2021-03-26 14:31:10,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 306 transitions, 6970 flow [2021-03-26 14:31:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 14:31:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 14:31:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 275 transitions. [2021-03-26 14:31:10,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1756066411238825 [2021-03-26 14:31:10,940 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 275 transitions. [2021-03-26 14:31:10,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 275 transitions. [2021-03-26 14:31:10,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:10,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 275 transitions. [2021-03-26 14:31:10,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.277777777777779) internal successors, (275), 18 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:10,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:10,942 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:10,942 INFO L185 Difference]: Start difference. First operand has 309 places, 273 transitions, 4959 flow. Second operand 18 states and 275 transitions. [2021-03-26 14:31:10,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 306 transitions, 6970 flow [2021-03-26 14:31:11,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 306 transitions, 6793 flow, removed 36 selfloop flow, removed 9 redundant places. [2021-03-26 14:31:11,181 INFO L241 Difference]: Finished difference. Result has 324 places, 292 transitions, 5771 flow [2021-03-26 14:31:11,182 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=4785, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5771, PETRI_PLACES=324, PETRI_TRANSITIONS=292} [2021-03-26 14:31:11,182 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 308 predicate places. [2021-03-26 14:31:11,182 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:11,182 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 292 transitions, 5771 flow [2021-03-26 14:31:11,182 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 292 transitions, 5771 flow [2021-03-26 14:31:11,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 322 places, 292 transitions, 5771 flow [2021-03-26 14:31:11,280 INFO L129 PetriNetUnfolder]: 250/694 cut-off events. [2021-03-26 14:31:11,281 INFO L130 PetriNetUnfolder]: For 58949/58964 co-relation queries the response was YES. [2021-03-26 14:31:11,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9439 conditions, 694 events. 250/694 cut-off events. For 58949/58964 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4964 event pairs, 9 based on Foata normal form. 11/703 useless extension candidates. Maximal degree in co-relation 9282. Up to 360 conditions per place. [2021-03-26 14:31:11,290 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 14:31:12,441 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:12,441 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 14:31:12,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1259 [2021-03-26 14:31:12,441 INFO L480 AbstractCegarLoop]: Abstraction has has 322 places, 292 transitions, 5853 flow [2021-03-26 14:31:12,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:12,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:12,442 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:12,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:12,642 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:12,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1416051607, now seen corresponding path program 1 times [2021-03-26 14:31:12,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:12,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323601061] [2021-03-26 14:31:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:12,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,657 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 14:31:12,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:12,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:12,672 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:31:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:12,685 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 14:31:12,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:31:12,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:12,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323601061] [2021-03-26 14:31:12,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804262339] [2021-03-26 14:31:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:12,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:12,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:12,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:12,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:12,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:12,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,755 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:12,756 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,756 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:12,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:12,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:12,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:12,770 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:31:12,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:12,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:12,772 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 14:31:12,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:12,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:12,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:12,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:12,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:12,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:12,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:12,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:12,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 14:31:12,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,829 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:12,830 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,830 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:12,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:12,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:31:12,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:31:12,868 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.7 percent of original size [2021-03-26 14:31:12,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 14:31:12,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 14:31:12,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,871 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:12,872 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,872 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 14:31:12,873 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:31:12,874 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:31:12,874 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:12,874 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,875 INFO L142 QuantifierPusher]: treesize reduction 74, result has 20.4 percent of original size [2021-03-26 14:31:12,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:12,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:12,895 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-03-26 14:31:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:12,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:12,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:12,897 INFO L142 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-03-26 14:31:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:12,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:12,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:12,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:31:12,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646496559] [2021-03-26 14:31:12,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:31:12,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:12,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:31:12,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:31:12,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 94 [2021-03-26 14:31:12,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 292 transitions, 5853 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:31:12,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:12,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 94 [2021-03-26 14:31:12,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:13,400 INFO L129 PetriNetUnfolder]: 253/704 cut-off events. [2021-03-26 14:31:13,400 INFO L130 PetriNetUnfolder]: For 61115/61147 co-relation queries the response was YES. [2021-03-26 14:31:13,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10228 conditions, 704 events. 253/704 cut-off events. For 61115/61147 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4990 event pairs, 5 based on Foata normal form. 9/707 useless extension candidates. Maximal degree in co-relation 10066. Up to 396 conditions per place. [2021-03-26 14:31:13,408 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 254 selfloop transitions, 56 changer transitions 3/319 dead transitions. [2021-03-26 14:31:13,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 319 transitions, 7906 flow [2021-03-26 14:31:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:31:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:31:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 207 transitions. [2021-03-26 14:31:13,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20019342359767892 [2021-03-26 14:31:13,409 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 207 transitions. [2021-03-26 14:31:13,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 207 transitions. [2021-03-26 14:31:13,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:13,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 207 transitions. [2021-03-26 14:31:13,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 18.818181818181817) internal successors, (207), 11 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:13,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:13,410 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:13,410 INFO L185 Difference]: Start difference. First operand has 322 places, 292 transitions, 5853 flow. Second operand 11 states and 207 transitions. [2021-03-26 14:31:13,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 319 transitions, 7906 flow [2021-03-26 14:31:13,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 319 transitions, 7095 flow, removed 387 selfloop flow, removed 8 redundant places. [2021-03-26 14:31:13,666 INFO L241 Difference]: Finished difference. Result has 322 places, 289 transitions, 5232 flow [2021-03-26 14:31:13,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5136, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5232, PETRI_PLACES=322, PETRI_TRANSITIONS=289} [2021-03-26 14:31:13,666 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 306 predicate places. [2021-03-26 14:31:13,666 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:13,666 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 322 places, 289 transitions, 5232 flow [2021-03-26 14:31:13,666 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 322 places, 289 transitions, 5232 flow [2021-03-26 14:31:13,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 289 transitions, 5232 flow [2021-03-26 14:31:13,795 INFO L129 PetriNetUnfolder]: 250/695 cut-off events. [2021-03-26 14:31:13,795 INFO L130 PetriNetUnfolder]: For 57663/57688 co-relation queries the response was YES. [2021-03-26 14:31:13,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9046 conditions, 695 events. 250/695 cut-off events. For 57663/57688 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4989 event pairs, 12 based on Foata normal form. 9/701 useless extension candidates. Maximal degree in co-relation 8892. Up to 343 conditions per place. [2021-03-26 14:31:13,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 14:31:13,825 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:13,825 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:13,826 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-26 14:31:13,826 INFO L480 AbstractCegarLoop]: Abstraction has has 320 places, 289 transitions, 5232 flow [2021-03-26 14:31:13,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:31:13,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:13,826 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:14,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable290 [2021-03-26 14:31:14,040 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:14,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1890952528, now seen corresponding path program 1 times [2021-03-26 14:31:14,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:14,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869822881] [2021-03-26 14:31:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:14,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,053 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 14:31:14,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:31:14,062 INFO L142 QuantifierPusher]: treesize reduction 204, result has 25.5 percent of original size [2021-03-26 14:31:14,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:31:14,101 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 14:31:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:14,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869822881] [2021-03-26 14:31:14,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405090169] [2021-03-26 14:31:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:14,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:14,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:14,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:14,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:14,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:14,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:14,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,182 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:14,183 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:14,183 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:14,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:14,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:14,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,205 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:14,205 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:14,206 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:14,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:14,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-26 14:31:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:14,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:14,239 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 14:31:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:14,263 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 14:31:14,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:14,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:14,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:14,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:31:14,267 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 14:31:14,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:14,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:14,269 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:14,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:14,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:14,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:14,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913527350] [2021-03-26 14:31:14,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:14,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:14,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:14,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:14,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 94 [2021-03-26 14:31:14,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 289 transitions, 5232 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:14,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:14,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 94 [2021-03-26 14:31:14,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:14,798 INFO L129 PetriNetUnfolder]: 255/700 cut-off events. [2021-03-26 14:31:14,798 INFO L130 PetriNetUnfolder]: For 60076/60084 co-relation queries the response was YES. [2021-03-26 14:31:14,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9745 conditions, 700 events. 255/700 cut-off events. For 60076/60084 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4929 event pairs, 12 based on Foata normal form. 4/701 useless extension candidates. Maximal degree in co-relation 9583. Up to 489 conditions per place. [2021-03-26 14:31:14,806 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 265 selfloop transitions, 35 changer transitions 1/307 dead transitions. [2021-03-26 14:31:14,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 307 transitions, 6512 flow [2021-03-26 14:31:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 14:31:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 14:31:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 231 transitions. [2021-03-26 14:31:14,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1890343698854337 [2021-03-26 14:31:14,807 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 231 transitions. [2021-03-26 14:31:14,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 231 transitions. [2021-03-26 14:31:14,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:14,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 231 transitions. [2021-03-26 14:31:14,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:14,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:14,809 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:14,809 INFO L185 Difference]: Start difference. First operand has 320 places, 289 transitions, 5232 flow. Second operand 13 states and 231 transitions. [2021-03-26 14:31:14,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 307 transitions, 6512 flow [2021-03-26 14:31:15,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 307 transitions, 6403 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:15,028 INFO L241 Difference]: Finished difference. Result has 328 places, 292 transitions, 5346 flow [2021-03-26 14:31:15,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5123, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5346, PETRI_PLACES=328, PETRI_TRANSITIONS=292} [2021-03-26 14:31:15,028 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-26 14:31:15,028 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:15,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 292 transitions, 5346 flow [2021-03-26 14:31:15,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 292 transitions, 5346 flow [2021-03-26 14:31:15,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 328 places, 292 transitions, 5346 flow [2021-03-26 14:31:15,136 INFO L129 PetriNetUnfolder]: 252/696 cut-off events. [2021-03-26 14:31:15,136 INFO L130 PetriNetUnfolder]: For 57863/57888 co-relation queries the response was YES. [2021-03-26 14:31:15,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9085 conditions, 696 events. 252/696 cut-off events. For 57863/57888 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4933 event pairs, 8 based on Foata normal form. 9/702 useless extension candidates. Maximal degree in co-relation 8887. Up to 345 conditions per place. [2021-03-26 14:31:15,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:15,156 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:15,157 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:15,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-26 14:31:15,157 INFO L480 AbstractCegarLoop]: Abstraction has has 328 places, 292 transitions, 5346 flow [2021-03-26 14:31:15,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:15,157 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:15,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:15,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:15,358 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:15,358 INFO L82 PathProgramCache]: Analyzing trace with hash 442082434, now seen corresponding path program 1 times [2021-03-26 14:31:15,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:15,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113811461] [2021-03-26 14:31:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:15,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:15,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:15,399 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:31:15,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:31:15,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:15,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:15,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113811461] [2021-03-26 14:31:15,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768060257] [2021-03-26 14:31:15,417 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 [2021-03-26 14:31:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:15,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 14:31:15,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:15,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:15,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:15,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,485 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:15,486 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,486 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:15,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:31:15,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 14:31:15,507 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-26 14:31:15,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:15,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:15,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.1 percent of original size [2021-03-26 14:31:15,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:31:15,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:15,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:31:15,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,531 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:15,532 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,532 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:15,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:15,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:15,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:15,555 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-26 14:31:15,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:15,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:15,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:15,557 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-26 14:31:15,558 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:15,558 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:15,561 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-26 14:31:15,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:15,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:15,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:15,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:15,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:15,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:15,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:15,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253727170] [2021-03-26 14:31:15,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:15,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:15,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:15,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:15,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 94 [2021-03-26 14:31:15,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 292 transitions, 5346 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:15,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:15,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 94 [2021-03-26 14:31:15,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:15,849 INFO L129 PetriNetUnfolder]: 250/686 cut-off events. [2021-03-26 14:31:15,849 INFO L130 PetriNetUnfolder]: For 58120/58158 co-relation queries the response was YES. [2021-03-26 14:31:15,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9491 conditions, 686 events. 250/686 cut-off events. For 58120/58158 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4780 event pairs, 12 based on Foata normal form. 9/695 useless extension candidates. Maximal degree in co-relation 9329. Up to 420 conditions per place. [2021-03-26 14:31:15,857 INFO L132 encePairwiseOnDemand]: 78/94 looper letters, 240 selfloop transitions, 23 changer transitions 3/296 dead transitions. [2021-03-26 14:31:15,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 296 transitions, 6024 flow [2021-03-26 14:31:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:31:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:31:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2021-03-26 14:31:15,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24772036474164133 [2021-03-26 14:31:15,858 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 163 transitions. [2021-03-26 14:31:15,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 163 transitions. [2021-03-26 14:31:15,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:15,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 163 transitions. [2021-03-26 14:31:15,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:15,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:15,859 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:15,860 INFO L185 Difference]: Start difference. First operand has 328 places, 292 transitions, 5346 flow. Second operand 7 states and 163 transitions. [2021-03-26 14:31:15,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 296 transitions, 6024 flow [2021-03-26 14:31:16,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 296 transitions, 5820 flow, removed 56 selfloop flow, removed 8 redundant places. [2021-03-26 14:31:16,080 INFO L241 Difference]: Finished difference. Result has 328 places, 290 transitions, 5148 flow [2021-03-26 14:31:16,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5142, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5148, PETRI_PLACES=328, PETRI_TRANSITIONS=290} [2021-03-26 14:31:16,081 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-26 14:31:16,081 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:16,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 290 transitions, 5148 flow [2021-03-26 14:31:16,081 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 290 transitions, 5148 flow [2021-03-26 14:31:16,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 323 places, 290 transitions, 5148 flow [2021-03-26 14:31:16,195 INFO L129 PetriNetUnfolder]: 250/684 cut-off events. [2021-03-26 14:31:16,195 INFO L130 PetriNetUnfolder]: For 57155/57173 co-relation queries the response was YES. [2021-03-26 14:31:16,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8908 conditions, 684 events. 250/684 cut-off events. For 57155/57173 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4840 event pairs, 10 based on Foata normal form. 9/690 useless extension candidates. Maximal degree in co-relation 8764. Up to 341 conditions per place. [2021-03-26 14:31:16,209 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:16,440 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:16,440 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:16,440 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 359 [2021-03-26 14:31:16,443 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 290 transitions, 5167 flow [2021-03-26 14:31:16,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:16,444 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:16,444 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:16,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable298 [2021-03-26 14:31:16,652 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1925751299, now seen corresponding path program 1 times [2021-03-26 14:31:16,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:16,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869675287] [2021-03-26 14:31:16,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:16,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:16,667 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:31:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:16,673 INFO L142 QuantifierPusher]: treesize reduction 34, result has 60.9 percent of original size [2021-03-26 14:31:16,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:31:16,705 INFO L142 QuantifierPusher]: treesize reduction 60, result has 53.5 percent of original size [2021-03-26 14:31:16,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 14:31:16,742 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:16,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:16,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:16,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869675287] [2021-03-26 14:31:16,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858998929] [2021-03-26 14:31:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:16,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:31:16,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:16,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:16,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:16,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:16,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:16,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:16,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,804 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,804 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,805 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:16,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:16,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:16,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:16,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,824 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,824 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,825 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:16,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:16,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:16,850 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.1 percent of original size [2021-03-26 14:31:16,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:16,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:31:16,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:16,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:31:16,855 INFO L142 QuantifierPusher]: treesize reduction 499, result has 25.9 percent of original size [2021-03-26 14:31:16,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,857 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-26 14:31:16,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,857 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.0 percent of original size [2021-03-26 14:31:16,858 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-03-26 14:31:16,858 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,860 INFO L142 QuantifierPusher]: treesize reduction 180, result has 37.1 percent of original size [2021-03-26 14:31:16,860 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,860 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-26 14:31:16,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 14:31:16,863 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,863 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-26 14:31:16,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 14:31:16,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-26 14:31:16,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-26 14:31:16,866 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:16,866 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,867 INFO L142 QuantifierPusher]: treesize reduction 179, result has 18.6 percent of original size [2021-03-26 14:31:16,868 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,868 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,869 INFO L142 QuantifierPusher]: treesize reduction 12, result has 40.0 percent of original size [2021-03-26 14:31:16,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:16,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:16,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:16,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:16,895 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.7 percent of original size [2021-03-26 14:31:16,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:16,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:16,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 14:31:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-03-26 14:31:16,899 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.2 percent of original size [2021-03-26 14:31:16,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,900 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:16,900 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:16,901 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,902 INFO L142 QuantifierPusher]: treesize reduction 175, result has 29.1 percent of original size [2021-03-26 14:31:16,902 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:16,902 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,903 INFO L142 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-03-26 14:31:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:16,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:16,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:16,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:16,929 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:31:16,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:16,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,934 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:31:16,934 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,934 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,935 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:31:16,935 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:16,935 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:16,936 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:31:16,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:16,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:16,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:16,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 14:31:16,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938058236] [2021-03-26 14:31:16,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:31:16,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:16,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:31:16,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:31:16,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 95 [2021-03-26 14:31:16,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 290 transitions, 5167 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:31:16,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:16,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 95 [2021-03-26 14:31:16,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:17,457 INFO L129 PetriNetUnfolder]: 252/683 cut-off events. [2021-03-26 14:31:17,458 INFO L130 PetriNetUnfolder]: For 58707/58715 co-relation queries the response was YES. [2021-03-26 14:31:17,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9521 conditions, 683 events. 252/683 cut-off events. For 58707/58715 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4725 event pairs, 11 based on Foata normal form. 2/682 useless extension candidates. Maximal degree in co-relation 9372. Up to 530 conditions per place. [2021-03-26 14:31:17,468 INFO L132 encePairwiseOnDemand]: 78/95 looper letters, 264 selfloop transitions, 26 changer transitions 3/297 dead transitions. [2021-03-26 14:31:17,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 297 transitions, 6019 flow [2021-03-26 14:31:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:31:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:31:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2021-03-26 14:31:17,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1847953216374269 [2021-03-26 14:31:17,469 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 158 transitions. [2021-03-26 14:31:17,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 158 transitions. [2021-03-26 14:31:17,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:17,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 158 transitions. [2021-03-26 14:31:17,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:17,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:17,470 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:17,470 INFO L185 Difference]: Start difference. First operand has 323 places, 290 transitions, 5167 flow. Second operand 9 states and 158 transitions. [2021-03-26 14:31:17,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 297 transitions, 6019 flow [2021-03-26 14:31:17,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 297 transitions, 5942 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-03-26 14:31:17,752 INFO L241 Difference]: Finished difference. Result has 328 places, 288 transitions, 5097 flow [2021-03-26 14:31:17,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=5096, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5097, PETRI_PLACES=328, PETRI_TRANSITIONS=288} [2021-03-26 14:31:17,753 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-26 14:31:17,753 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:17,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 288 transitions, 5097 flow [2021-03-26 14:31:17,753 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 288 transitions, 5097 flow [2021-03-26 14:31:17,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 288 transitions, 5097 flow [2021-03-26 14:31:17,889 INFO L129 PetriNetUnfolder]: 249/673 cut-off events. [2021-03-26 14:31:17,889 INFO L130 PetriNetUnfolder]: For 55992/56007 co-relation queries the response was YES. [2021-03-26 14:31:17,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8780 conditions, 673 events. 249/673 cut-off events. For 55992/56007 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4668 event pairs, 9 based on Foata normal form. 11/681 useless extension candidates. Maximal degree in co-relation 8621. Up to 337 conditions per place. [2021-03-26 14:31:17,899 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 14:31:17,909 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:17,909 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:17,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-26 14:31:17,909 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 288 transitions, 5097 flow [2021-03-26 14:31:17,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 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) [2021-03-26 14:31:17,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:17,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:18,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable302 [2021-03-26 14:31:18,110 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:18,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:18,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2030829394, now seen corresponding path program 1 times [2021-03-26 14:31:18,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:18,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605546514] [2021-03-26 14:31:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:18,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:18,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:18,133 INFO L142 QuantifierPusher]: treesize reduction 79, result has 57.3 percent of original size [2021-03-26 14:31:18,134 INFO L147 QuantifierPusher]: treesize reduction 73, result has 31.1 percent of original size 33 [2021-03-26 14:31:18,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 14:31:18,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:18,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:18,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605546514] [2021-03-26 14:31:18,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:31:18,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:31:18,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130043980] [2021-03-26 14:31:18,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:31:18,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:18,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:31:18,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:31:18,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 95 [2021-03-26 14:31:18,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 288 transitions, 5097 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:18,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:18,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 95 [2021-03-26 14:31:18,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:18,543 INFO L129 PetriNetUnfolder]: 272/718 cut-off events. [2021-03-26 14:31:18,543 INFO L130 PetriNetUnfolder]: For 64966/64998 co-relation queries the response was YES. [2021-03-26 14:31:18,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10252 conditions, 718 events. 272/718 cut-off events. For 64966/64998 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4964 event pairs, 3 based on Foata normal form. 10/726 useless extension candidates. Maximal degree in co-relation 10045. Up to 375 conditions per place. [2021-03-26 14:31:18,551 INFO L132 encePairwiseOnDemand]: 59/95 looper letters, 136 selfloop transitions, 177 changer transitions 3/322 dead transitions. [2021-03-26 14:31:18,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 322 transitions, 7040 flow [2021-03-26 14:31:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:31:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:31:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2021-03-26 14:31:18,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25087719298245614 [2021-03-26 14:31:18,552 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 143 transitions. [2021-03-26 14:31:18,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 143 transitions. [2021-03-26 14:31:18,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:18,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 143 transitions. [2021-03-26 14:31:18,553 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) [2021-03-26 14:31:18,553 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) [2021-03-26 14:31:18,553 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) [2021-03-26 14:31:18,553 INFO L185 Difference]: Start difference. First operand has 325 places, 288 transitions, 5097 flow. Second operand 6 states and 143 transitions. [2021-03-26 14:31:18,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 322 transitions, 7040 flow [2021-03-26 14:31:18,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 322 transitions, 6981 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:18,794 INFO L241 Difference]: Finished difference. Result has 327 places, 306 transitions, 6403 flow [2021-03-26 14:31:18,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=5027, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6403, PETRI_PLACES=327, PETRI_TRANSITIONS=306} [2021-03-26 14:31:18,794 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 311 predicate places. [2021-03-26 14:31:18,795 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:18,795 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 306 transitions, 6403 flow [2021-03-26 14:31:18,795 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 306 transitions, 6403 flow [2021-03-26 14:31:18,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 327 places, 306 transitions, 6403 flow [2021-03-26 14:31:18,896 INFO L129 PetriNetUnfolder]: 269/707 cut-off events. [2021-03-26 14:31:18,897 INFO L130 PetriNetUnfolder]: For 67920/67936 co-relation queries the response was YES. [2021-03-26 14:31:18,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10173 conditions, 707 events. 269/707 cut-off events. For 67920/67936 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4928 event pairs, 9 based on Foata normal form. 7/712 useless extension candidates. Maximal degree in co-relation 10010. Up to 372 conditions per place. [2021-03-26 14:31:18,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:18,918 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:18,918 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:18,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-26 14:31:18,918 INFO L480 AbstractCegarLoop]: Abstraction has has 327 places, 306 transitions, 6403 flow [2021-03-26 14:31:18,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:18,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:18,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:18,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-26 14:31:18,918 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:18,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:18,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1050716861, now seen corresponding path program 1 times [2021-03-26 14:31:18,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:18,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135750977] [2021-03-26 14:31:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:18,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:18,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:18,936 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:31:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:18,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:18,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:18,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135750977] [2021-03-26 14:31:18,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:31:18,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:31:18,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539555088] [2021-03-26 14:31:18,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:31:18,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:31:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:31:18,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 95 [2021-03-26 14:31:18,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 306 transitions, 6403 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:18,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:18,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 95 [2021-03-26 14:31:18,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:19,275 INFO L129 PetriNetUnfolder]: 274/722 cut-off events. [2021-03-26 14:31:19,276 INFO L130 PetriNetUnfolder]: For 71953/71985 co-relation queries the response was YES. [2021-03-26 14:31:19,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11059 conditions, 722 events. 274/722 cut-off events. For 71953/71985 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4987 event pairs, 17 based on Foata normal form. 2/722 useless extension candidates. Maximal degree in co-relation 10845. Up to 539 conditions per place. [2021-03-26 14:31:19,284 INFO L132 encePairwiseOnDemand]: 85/95 looper letters, 277 selfloop transitions, 32 changer transitions 0/315 dead transitions. [2021-03-26 14:31:19,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 315 transitions, 7498 flow [2021-03-26 14:31:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:31:19,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:31:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2021-03-26 14:31:19,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23333333333333334 [2021-03-26 14:31:19,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 133 transitions. [2021-03-26 14:31:19,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 133 transitions. [2021-03-26 14:31:19,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:19,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 133 transitions. [2021-03-26 14:31:19,286 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) [2021-03-26 14:31:19,286 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) [2021-03-26 14:31:19,286 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) [2021-03-26 14:31:19,286 INFO L185 Difference]: Start difference. First operand has 327 places, 306 transitions, 6403 flow. Second operand 6 states and 133 transitions. [2021-03-26 14:31:19,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 315 transitions, 7498 flow [2021-03-26 14:31:19,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 315 transitions, 7325 flow, removed 84 selfloop flow, removed 2 redundant places. [2021-03-26 14:31:19,570 INFO L241 Difference]: Finished difference. Result has 331 places, 307 transitions, 6338 flow [2021-03-26 14:31:19,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=6234, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6338, PETRI_PLACES=331, PETRI_TRANSITIONS=307} [2021-03-26 14:31:19,570 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 315 predicate places. [2021-03-26 14:31:19,570 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:19,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 307 transitions, 6338 flow [2021-03-26 14:31:19,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 307 transitions, 6338 flow [2021-03-26 14:31:19,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 307 transitions, 6338 flow [2021-03-26 14:31:19,675 INFO L129 PetriNetUnfolder]: 271/716 cut-off events. [2021-03-26 14:31:19,675 INFO L130 PetriNetUnfolder]: For 66213/66229 co-relation queries the response was YES. [2021-03-26 14:31:19,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10191 conditions, 716 events. 271/716 cut-off events. For 66213/66229 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5033 event pairs, 9 based on Foata normal form. 7/720 useless extension candidates. Maximal degree in co-relation 10028. Up to 378 conditions per place. [2021-03-26 14:31:19,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:19,697 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:19,697 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:19,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-26 14:31:19,697 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 307 transitions, 6338 flow [2021-03-26 14:31:19,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:19,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:19,697 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:19,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-26 14:31:19,697 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:19,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1025671859, now seen corresponding path program 1 times [2021-03-26 14:31:19,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:19,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162499138] [2021-03-26 14:31:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:19,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,716 INFO L142 QuantifierPusher]: treesize reduction 88, result has 38.9 percent of original size [2021-03-26 14:31:19,716 INFO L147 QuantifierPusher]: treesize reduction 46, result has 17.9 percent of original size 10 [2021-03-26 14:31:19,731 INFO L142 QuantifierPusher]: treesize reduction 126, result has 46.8 percent of original size [2021-03-26 14:31:19,731 INFO L147 QuantifierPusher]: treesize reduction 58, result has 47.7 percent of original size 53 [2021-03-26 14:31:19,770 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.8 percent of original size [2021-03-26 14:31:19,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:19,798 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size [2021-03-26 14:31:19,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:19,820 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:19,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:19,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162499138] [2021-03-26 14:31:19,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133064175] [2021-03-26 14:31:19,849 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 [2021-03-26 14:31:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:19,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:31:19,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:19,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:19,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:19,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:19,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:19,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,913 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:19,913 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,914 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:19,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:19,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:19,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:19,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:19,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:19,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:19,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,932 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:19,933 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,933 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:19,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:19,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:19,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:19,959 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.1 percent of original size [2021-03-26 14:31:19,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:19,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:31:19,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:19,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:31:19,963 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 14:31:19,964 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:31:19,965 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:31:19,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:31:20,103 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-26 14:31:20,104 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-26 14:31:20,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:31:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:31:20,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:31:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 14:31:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,109 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:31:20,109 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:20,109 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,110 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:31:20,110 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:20,116 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:31:20,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,118 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:20,119 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,119 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 14:31:20,121 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:31:20,121 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 14:31:20,121 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:20,122 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,124 INFO L142 QuantifierPusher]: treesize reduction 95, result has 43.8 percent of original size [2021-03-26 14:31:20,125 INFO L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-03-26 14:31:20,125 INFO L147 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size 38 [2021-03-26 14:31:20,126 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-26 14:31:20,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:20,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:20,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:20,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:20,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:20,163 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.1 percent of original size [2021-03-26 14:31:20,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:31:20,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:31:20,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-03-26 14:31:20,168 INFO L142 QuantifierPusher]: treesize reduction 23, result has 82.3 percent of original size [2021-03-26 14:31:20,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,169 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:20,169 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:20,170 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,170 INFO L142 QuantifierPusher]: treesize reduction 99, result has 39.3 percent of original size [2021-03-26 14:31:20,172 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:20,172 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,172 INFO L142 QuantifierPusher]: treesize reduction 32, result has 25.6 percent of original size [2021-03-26 14:31:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:20,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:20,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:20,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:20,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:20,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,197 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:31:20,198 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:20,198 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,198 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:31:20,199 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:31:20,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:20,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:20,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:20,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:20,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:20,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007896030] [2021-03-26 14:31:20,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:20,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:20,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:20,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:20,219 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 95 [2021-03-26 14:31:20,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 307 transitions, 6338 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:20,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:20,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 95 [2021-03-26 14:31:20,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:20,865 INFO L129 PetriNetUnfolder]: 277/731 cut-off events. [2021-03-26 14:31:20,865 INFO L130 PetriNetUnfolder]: For 70464/70496 co-relation queries the response was YES. [2021-03-26 14:31:20,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11130 conditions, 731 events. 277/731 cut-off events. For 70464/70496 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5090 event pairs, 14 based on Foata normal form. 10/738 useless extension candidates. Maximal degree in co-relation 10916. Up to 571 conditions per place. [2021-03-26 14:31:20,874 INFO L132 encePairwiseOnDemand]: 78/95 looper letters, 282 selfloop transitions, 31 changer transitions 3/320 dead transitions. [2021-03-26 14:31:20,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 320 transitions, 7548 flow [2021-03-26 14:31:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 172 transitions. [2021-03-26 14:31:20,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18105263157894738 [2021-03-26 14:31:20,875 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 172 transitions. [2021-03-26 14:31:20,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 172 transitions. [2021-03-26 14:31:20,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:20,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 172 transitions. [2021-03-26 14:31:20,875 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) [2021-03-26 14:31:20,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:20,876 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:20,876 INFO L185 Difference]: Start difference. First operand has 331 places, 307 transitions, 6338 flow. Second operand 10 states and 172 transitions. [2021-03-26 14:31:20,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 320 transitions, 7548 flow [2021-03-26 14:31:21,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 320 transitions, 7478 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-26 14:31:21,153 INFO L241 Difference]: Finished difference. Result has 339 places, 312 transitions, 6632 flow [2021-03-26 14:31:21,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=6268, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6632, PETRI_PLACES=339, PETRI_TRANSITIONS=312} [2021-03-26 14:31:21,153 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 323 predicate places. [2021-03-26 14:31:21,153 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:21,153 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 312 transitions, 6632 flow [2021-03-26 14:31:21,153 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 312 transitions, 6632 flow [2021-03-26 14:31:21,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 337 places, 312 transitions, 6632 flow [2021-03-26 14:31:21,277 INFO L129 PetriNetUnfolder]: 274/719 cut-off events. [2021-03-26 14:31:21,277 INFO L130 PetriNetUnfolder]: For 70129/70144 co-relation queries the response was YES. [2021-03-26 14:31:21,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10427 conditions, 719 events. 274/719 cut-off events. For 70129/70144 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4984 event pairs, 11 based on Foata normal form. 11/727 useless extension candidates. Maximal degree in co-relation 10286. Up to 382 conditions per place. [2021-03-26 14:31:21,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:21,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:21,597 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:31:21,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 444 [2021-03-26 14:31:21,597 INFO L480 AbstractCegarLoop]: Abstraction has has 337 places, 312 transitions, 6656 flow [2021-03-26 14:31:21,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:21,597 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:21,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:21,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-03-26 14:31:21,798 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:21,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:21,798 INFO L82 PathProgramCache]: Analyzing trace with hash 717366085, now seen corresponding path program 2 times [2021-03-26 14:31:21,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:21,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39664902] [2021-03-26 14:31:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:21,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:21,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:21,822 INFO L142 QuantifierPusher]: treesize reduction 34, result has 60.9 percent of original size [2021-03-26 14:31:21,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:31:21,851 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.8 percent of original size [2021-03-26 14:31:21,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:31:21,908 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:31:21,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:21,927 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:21,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:21,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:21,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39664902] [2021-03-26 14:31:21,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188196472] [2021-03-26 14:31:21,948 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 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 [2021-03-26 14:31:21,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:21,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:21,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 14:31:21,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:21,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:21,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:21,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:21,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:21,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:21,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:21,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:21,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:21,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,992 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:21,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:21,993 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:21,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:21,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:21,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:21,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:22,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:22,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:22,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,014 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:22,015 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,015 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:22,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:22,042 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.1 percent of original size [2021-03-26 14:31:22,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:22,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:31:22,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:22,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:31:22,045 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 14:31:22,046 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:31:22,047 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:31:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:31:22,120 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.9 percent of original size [2021-03-26 14:31:22,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:22,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-03-26 14:31:22,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-03-26 14:31:22,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-03-26 14:31:22,127 INFO L142 QuantifierPusher]: treesize reduction 46, result has 83.7 percent of original size [2021-03-26 14:31:22,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,130 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:22,130 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:22,132 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,134 INFO L142 QuantifierPusher]: treesize reduction 274, result has 34.9 percent of original size [2021-03-26 14:31:22,135 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:31:22,135 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,136 INFO L142 QuantifierPusher]: treesize reduction 161, result has 24.4 percent of original size [2021-03-26 14:31:22,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:22,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:22,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:22,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:22,179 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:31:22,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:31:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:31:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:22,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,184 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:31:22,185 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:22,185 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,190 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:31:22,190 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 2, 1] term [2021-03-26 14:31:22,190 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:22,191 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,192 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-03-26 14:31:22,192 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-26 14:31:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:22,217 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:31:22,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:22,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:22,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:22,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,221 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:31:22,222 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:22,222 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,222 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:31:22,223 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:22,223 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:22,224 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 14:31:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:22,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:22,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:22,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563971081] [2021-03-26 14:31:22,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:22,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:22,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 97 [2021-03-26 14:31:22,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 312 transitions, 6656 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:22,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:22,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 97 [2021-03-26 14:31:22,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:22,890 INFO L129 PetriNetUnfolder]: 278/738 cut-off events. [2021-03-26 14:31:22,890 INFO L130 PetriNetUnfolder]: For 75011/75019 co-relation queries the response was YES. [2021-03-26 14:31:22,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11436 conditions, 738 events. 278/738 cut-off events. For 75011/75019 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5160 event pairs, 12 based on Foata normal form. 4/739 useless extension candidates. Maximal degree in co-relation 11293. Up to 568 conditions per place. [2021-03-26 14:31:22,899 INFO L132 encePairwiseOnDemand]: 78/97 looper letters, 284 selfloop transitions, 33 changer transitions 4/325 dead transitions. [2021-03-26 14:31:22,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 325 transitions, 7910 flow [2021-03-26 14:31:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2021-03-26 14:31:22,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18350515463917524 [2021-03-26 14:31:22,900 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 178 transitions. [2021-03-26 14:31:22,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 178 transitions. [2021-03-26 14:31:22,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:22,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 178 transitions. [2021-03-26 14:31:22,901 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) [2021-03-26 14:31:22,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:22,901 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:22,901 INFO L185 Difference]: Start difference. First operand has 337 places, 312 transitions, 6656 flow. Second operand 10 states and 178 transitions. [2021-03-26 14:31:22,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 325 transitions, 7910 flow [2021-03-26 14:31:23,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 325 transitions, 7651 flow, removed 114 selfloop flow, removed 5 redundant places. [2021-03-26 14:31:23,241 INFO L241 Difference]: Finished difference. Result has 344 places, 314 transitions, 6731 flow [2021-03-26 14:31:23,241 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=6359, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6731, PETRI_PLACES=344, PETRI_TRANSITIONS=314} [2021-03-26 14:31:23,241 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 328 predicate places. [2021-03-26 14:31:23,241 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:23,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 314 transitions, 6731 flow [2021-03-26 14:31:23,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 314 transitions, 6731 flow [2021-03-26 14:31:23,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 314 transitions, 6731 flow [2021-03-26 14:31:23,403 INFO L129 PetriNetUnfolder]: 274/726 cut-off events. [2021-03-26 14:31:23,403 INFO L130 PetriNetUnfolder]: For 74170/74185 co-relation queries the response was YES. [2021-03-26 14:31:23,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10691 conditions, 726 events. 274/726 cut-off events. For 74170/74185 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5145 event pairs, 9 based on Foata normal form. 11/734 useless extension candidates. Maximal degree in co-relation 10521. Up to 384 conditions per place. [2021-03-26 14:31:23,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:31:23,438 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:23,438 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:23,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 197 [2021-03-26 14:31:23,440 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 314 transitions, 6731 flow [2021-03-26 14:31:23,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:23,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:23,440 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:23,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable326 [2021-03-26 14:31:23,663 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1415464899, now seen corresponding path program 2 times [2021-03-26 14:31:23,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:23,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868710215] [2021-03-26 14:31:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:23,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:23,685 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-26 14:31:23,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:23,689 INFO L142 QuantifierPusher]: treesize reduction 133, result has 25.7 percent of original size [2021-03-26 14:31:23,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:31:23,720 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-26 14:31:23,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:23,740 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:31:23,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:23,771 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:23,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:23,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:23,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868710215] [2021-03-26 14:31:23,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301423812] [2021-03-26 14:31:23,791 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 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 [2021-03-26 14:31:23,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:23,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:23,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 14:31:23,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:23,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:23,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:23,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:23,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:23,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:23,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:23,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:23,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,837 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:23,837 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,838 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:23,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:23,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:23,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,858 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:23,858 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,859 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:23,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:23,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:23,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:23,894 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-26 14:31:23,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:23,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:31:23,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:23,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:23,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:23,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:31:23,899 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-26 14:31:23,900 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:31:23,901 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:31:23,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:31:24,002 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-26 14:31:24,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:24,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 14:31:24,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 14:31:24,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:31:24,007 INFO L142 QuantifierPusher]: treesize reduction 214, result has 50.1 percent of original size [2021-03-26 14:31:24,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,008 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:24,009 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:24,009 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,010 INFO L142 QuantifierPusher]: treesize reduction 238, result has 36.9 percent of original size [2021-03-26 14:31:24,011 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:31:24,011 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,012 INFO L142 QuantifierPusher]: treesize reduction 82, result has 60.2 percent of original size [2021-03-26 14:31:24,013 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:24,014 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,015 INFO L142 QuantifierPusher]: treesize reduction 69, result has 61.5 percent of original size [2021-03-26 14:31:24,016 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:24,017 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,019 INFO L142 QuantifierPusher]: treesize reduction 103, result has 28.5 percent of original size [2021-03-26 14:31:24,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:31:24,021 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 14:31:24,022 INFO L147 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size 37 [2021-03-26 14:31:24,023 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 14:31:24,024 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 14:31:24,024 INFO L142 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size [2021-03-26 14:31:24,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:31:24,095 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:31:24,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:31:24,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:31:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:24,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,100 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:31:24,101 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:24,101 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,102 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:31:24,102 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:24,103 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,103 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:31:24,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:24,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:24,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:24,129 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:31:24,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:24,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:24,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:24,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:24,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:24,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,134 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:31:24,134 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:24,135 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,135 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:31:24,136 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:24,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:24,137 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 14:31:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:24,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:24,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:24,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689609668] [2021-03-26 14:31:24,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:24,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:24,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:24,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:24,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 97 [2021-03-26 14:31:24,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 314 transitions, 6731 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:24,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:24,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 97 [2021-03-26 14:31:24,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:25,255 INFO L129 PetriNetUnfolder]: 283/758 cut-off events. [2021-03-26 14:31:25,255 INFO L130 PetriNetUnfolder]: For 80528/80536 co-relation queries the response was YES. [2021-03-26 14:31:25,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12032 conditions, 758 events. 283/758 cut-off events. For 80528/80536 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5349 event pairs, 12 based on Foata normal form. 4/759 useless extension candidates. Maximal degree in co-relation 11809. Up to 573 conditions per place. [2021-03-26 14:31:25,265 INFO L132 encePairwiseOnDemand]: 80/97 looper letters, 290 selfloop transitions, 42 changer transitions 6/342 dead transitions. [2021-03-26 14:31:25,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 342 transitions, 8835 flow [2021-03-26 14:31:25,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 14:31:25,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 14:31:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 271 transitions. [2021-03-26 14:31:25,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1552119129438717 [2021-03-26 14:31:25,266 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 271 transitions. [2021-03-26 14:31:25,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 271 transitions. [2021-03-26 14:31:25,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:25,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 271 transitions. [2021-03-26 14:31:25,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:25,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 97.0) internal successors, (1843), 19 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:25,268 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 97.0) internal successors, (1843), 19 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:25,268 INFO L185 Difference]: Start difference. First operand has 342 places, 314 transitions, 6731 flow. Second operand 18 states and 271 transitions. [2021-03-26 14:31:25,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 342 transitions, 8835 flow [2021-03-26 14:31:25,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 342 transitions, 8559 flow, removed 123 selfloop flow, removed 5 redundant places. [2021-03-26 14:31:25,563 INFO L241 Difference]: Finished difference. Result has 361 places, 329 transitions, 7402 flow [2021-03-26 14:31:25,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=6467, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7402, PETRI_PLACES=361, PETRI_TRANSITIONS=329} [2021-03-26 14:31:25,563 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 345 predicate places. [2021-03-26 14:31:25,563 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:25,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 329 transitions, 7402 flow [2021-03-26 14:31:25,564 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 329 transitions, 7402 flow [2021-03-26 14:31:25,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 360 places, 329 transitions, 7402 flow [2021-03-26 14:31:25,712 INFO L129 PetriNetUnfolder]: 278/745 cut-off events. [2021-03-26 14:31:25,713 INFO L130 PetriNetUnfolder]: For 81111/81133 co-relation queries the response was YES. [2021-03-26 14:31:25,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11328 conditions, 745 events. 278/745 cut-off events. For 81111/81133 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5289 event pairs, 12 based on Foata normal form. 7/749 useless extension candidates. Maximal degree in co-relation 11101. Up to 394 conditions per place. [2021-03-26 14:31:25,729 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-26 14:31:26,337 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:26,337 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:31:26,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 774 [2021-03-26 14:31:26,337 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 329 transitions, 7454 flow [2021-03-26 14:31:26,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:26,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:26,337 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:26,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:26,538 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1306983041, now seen corresponding path program 2 times [2021-03-26 14:31:26,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:26,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092828467] [2021-03-26 14:31:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:26,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:26,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:31:26,587 INFO L142 QuantifierPusher]: treesize reduction 28, result has 74.8 percent of original size [2021-03-26 14:31:26,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:31:26,636 INFO L142 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size [2021-03-26 14:31:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:31:26,675 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:26,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:26,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092828467] [2021-03-26 14:31:26,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732166299] [2021-03-26 14:31:26,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:26,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:26,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:26,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-26 14:31:26,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:26,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:26,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:26,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:26,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,745 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,756 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,757 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:26,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:26,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,779 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,779 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,780 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:26,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:26,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:26,810 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.4 percent of original size [2021-03-26 14:31:26,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:31:26,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:26,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:31:26,816 INFO L142 QuantifierPusher]: treesize reduction 1086, result has 13.1 percent of original size [2021-03-26 14:31:26,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,819 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.9 percent of original size 71 [2021-03-26 14:31:26,819 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-03-26 14:31:26,820 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,821 INFO L142 QuantifierPusher]: treesize reduction 171, result has 38.3 percent of original size [2021-03-26 14:31:26,822 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,824 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-26 14:31:26,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 14:31:26,827 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,827 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,828 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-26 14:31:26,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 14:31:26,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-26 14:31:26,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-26 14:31:26,830 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,835 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,837 INFO L142 QuantifierPusher]: treesize reduction 124, result has 43.9 percent of original size [2021-03-26 14:31:26,837 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,838 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,838 INFO L142 QuantifierPusher]: treesize reduction 104, result has 12.6 percent of original size [2021-03-26 14:31:26,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 14:31:26,840 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size 25 [2021-03-26 14:31:26,841 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-03-26 14:31:26,841 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size [2021-03-26 14:31:26,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:26,869 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-03-26 14:31:26,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:26,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:31:26,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,880 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,881 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,882 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:26,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:26,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:26,916 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.7 percent of original size [2021-03-26 14:31:26,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:26,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:26,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 14:31:26,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-03-26 14:31:26,919 INFO L142 QuantifierPusher]: treesize reduction 46, result has 76.5 percent of original size [2021-03-26 14:31:26,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,921 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:26,921 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:26,921 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,922 INFO L142 QuantifierPusher]: treesize reduction 179, result has 28.1 percent of original size [2021-03-26 14:31:26,922 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:26,923 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,923 INFO L142 QuantifierPusher]: treesize reduction 32, result has 25.6 percent of original size [2021-03-26 14:31:26,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:26,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:26,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:26,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:26,959 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:31:26,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:26,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:26,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:26,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,963 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:31:26,963 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,964 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,965 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:31:26,965 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:31:26,965 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:26,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,966 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:31:26,967 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:31:26,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:26,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:26,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:26,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:26,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677803147] [2021-03-26 14:31:26,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:26,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:26,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:26,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:26,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 101 [2021-03-26 14:31:26,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 329 transitions, 7454 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:26,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:26,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 101 [2021-03-26 14:31:26,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:27,734 INFO L129 PetriNetUnfolder]: 280/750 cut-off events. [2021-03-26 14:31:27,734 INFO L130 PetriNetUnfolder]: For 85013/85045 co-relation queries the response was YES. [2021-03-26 14:31:27,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12093 conditions, 750 events. 280/750 cut-off events. For 85013/85045 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5296 event pairs, 16 based on Foata normal form. 10/756 useless extension candidates. Maximal degree in co-relation 11862. Up to 591 conditions per place. [2021-03-26 14:31:27,743 INFO L132 encePairwiseOnDemand]: 85/101 looper letters, 301 selfloop transitions, 24 changer transitions 4/333 dead transitions. [2021-03-26 14:31:27,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 333 transitions, 8284 flow [2021-03-26 14:31:27,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-26 14:31:27,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1844059405940594 [2021-03-26 14:31:27,744 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-26 14:31:27,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-26 14:31:27,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:27,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-26 14:31:27,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 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) [2021-03-26 14:31:27,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 101.0) internal successors, (909), 9 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:27,745 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 101.0) internal successors, (909), 9 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:27,745 INFO L185 Difference]: Start difference. First operand has 360 places, 329 transitions, 7454 flow. Second operand 8 states and 149 transitions. [2021-03-26 14:31:27,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 333 transitions, 8284 flow [2021-03-26 14:31:28,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 333 transitions, 7899 flow, removed 177 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:28,076 INFO L241 Difference]: Finished difference. Result has 362 places, 326 transitions, 7046 flow [2021-03-26 14:31:28,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=7073, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7046, PETRI_PLACES=362, PETRI_TRANSITIONS=326} [2021-03-26 14:31:28,076 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 346 predicate places. [2021-03-26 14:31:28,076 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:28,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 326 transitions, 7046 flow [2021-03-26 14:31:28,076 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 326 transitions, 7046 flow [2021-03-26 14:31:28,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 326 transitions, 7046 flow [2021-03-26 14:31:28,212 INFO L129 PetriNetUnfolder]: 277/737 cut-off events. [2021-03-26 14:31:28,212 INFO L130 PetriNetUnfolder]: For 81488/81503 co-relation queries the response was YES. [2021-03-26 14:31:28,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11063 conditions, 737 events. 277/737 cut-off events. For 81488/81503 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5272 event pairs, 10 based on Foata normal form. 11/744 useless extension candidates. Maximal degree in co-relation 10835. Up to 387 conditions per place. [2021-03-26 14:31:28,222 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 14:31:28,423 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:28,424 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:28,424 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 348 [2021-03-26 14:31:28,424 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 325 transitions, 7044 flow [2021-03-26 14:31:28,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:28,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:28,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:28,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable346 [2021-03-26 14:31:28,625 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:28,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:28,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1119013731, now seen corresponding path program 1 times [2021-03-26 14:31:28,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:28,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589980434] [2021-03-26 14:31:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:28,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,639 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-26 14:31:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:28,647 INFO L142 QuantifierPusher]: treesize reduction 210, result has 41.8 percent of original size [2021-03-26 14:31:28,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-03-26 14:31:28,693 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:31:28,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:28,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589980434] [2021-03-26 14:31:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87339741] [2021-03-26 14:31:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:28,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:28,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:28,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:28,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:28,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:28,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,780 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:28,780 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:28,781 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:28,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,799 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:28,799 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:28,800 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:28,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:28,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:28,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.0 percent of original size [2021-03-26 14:31:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:31:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:31:28,829 INFO L142 QuantifierPusher]: treesize reduction 109, result has 45.5 percent of original size [2021-03-26 14:31:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:28,962 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-26 14:31:28,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-26 14:31:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:28,966 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 14:31:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:28,971 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:28,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:28,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:28,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158383922] [2021-03-26 14:31:28,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:28,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:28,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:28,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:28,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-26 14:31:28,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 325 transitions, 7044 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:28,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:28,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-26 14:31:28,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:29,587 INFO L129 PetriNetUnfolder]: 286/762 cut-off events. [2021-03-26 14:31:29,587 INFO L130 PetriNetUnfolder]: For 87759/87791 co-relation queries the response was YES. [2021-03-26 14:31:29,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12254 conditions, 762 events. 286/762 cut-off events. For 87759/87791 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5388 event pairs, 15 based on Foata normal form. 10/768 useless extension candidates. Maximal degree in co-relation 12021. Up to 545 conditions per place. [2021-03-26 14:31:29,602 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 297 selfloop transitions, 35 changer transitions 0/339 dead transitions. [2021-03-26 14:31:29,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 339 transitions, 8534 flow [2021-03-26 14:31:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:31:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:31:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2021-03-26 14:31:29,603 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19825708061002179 [2021-03-26 14:31:29,603 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 182 transitions. [2021-03-26 14:31:29,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 182 transitions. [2021-03-26 14:31:29,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:29,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 182 transitions. [2021-03-26 14:31:29,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 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) [2021-03-26 14:31:29,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 102.0) internal successors, (1020), 10 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:29,604 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 102.0) internal successors, (1020), 10 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:29,605 INFO L185 Difference]: Start difference. First operand has 351 places, 325 transitions, 7044 flow. Second operand 9 states and 182 transitions. [2021-03-26 14:31:29,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 339 transitions, 8534 flow [2021-03-26 14:31:30,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 339 transitions, 8452 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-26 14:31:30,010 INFO L241 Difference]: Finished difference. Result has 354 places, 328 transitions, 7184 flow [2021-03-26 14:31:30,010 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6970, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7184, PETRI_PLACES=354, PETRI_TRANSITIONS=328} [2021-03-26 14:31:30,011 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 338 predicate places. [2021-03-26 14:31:30,011 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:30,011 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 328 transitions, 7184 flow [2021-03-26 14:31:30,011 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 328 transitions, 7184 flow [2021-03-26 14:31:30,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 354 places, 328 transitions, 7184 flow [2021-03-26 14:31:30,131 INFO L129 PetriNetUnfolder]: 283/755 cut-off events. [2021-03-26 14:31:30,131 INFO L130 PetriNetUnfolder]: For 83380/83395 co-relation queries the response was YES. [2021-03-26 14:31:30,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11457 conditions, 755 events. 283/755 cut-off events. For 83380/83395 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5418 event pairs, 11 based on Foata normal form. 11/762 useless extension candidates. Maximal degree in co-relation 11278. Up to 401 conditions per place. [2021-03-26 14:31:30,143 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 14:31:30,155 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:30,156 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:30,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-26 14:31:30,156 INFO L480 AbstractCegarLoop]: Abstraction has has 354 places, 328 transitions, 7184 flow [2021-03-26 14:31:30,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:30,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:30,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:30,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable359 [2021-03-26 14:31:30,357 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:30,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:30,357 INFO L82 PathProgramCache]: Analyzing trace with hash 604386227, now seen corresponding path program 1 times [2021-03-26 14:31:30,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:30,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037853680] [2021-03-26 14:31:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:30,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,368 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 14:31:30,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:30,372 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-26 14:31:30,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:30,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:30,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:30,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:30,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037853680] [2021-03-26 14:31:30,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323485899] [2021-03-26 14:31:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:30,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-26 14:31:30,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:30,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:30,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:30,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:30,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,440 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:30,441 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:30,441 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:30,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:30,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:30,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:30,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:31:30,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:31:30,456 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size [2021-03-26 14:31:30,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:30,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:30,482 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.9 percent of original size [2021-03-26 14:31:30,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:30,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:30,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:30,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:31:30,485 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-26 14:31:30,485 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:30,486 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:30,486 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-26 14:31:30,486 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:30,487 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:30,487 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-26 14:31:30,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:30,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:30,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:30,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:30,506 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:31:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:30,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:30,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:30,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:30,508 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:30,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:30,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:30,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:30,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468135212] [2021-03-26 14:31:30,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:30,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:30,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:30,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:30,515 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-26 14:31:30,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 328 transitions, 7184 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:30,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:30,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-26 14:31:30,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:30,897 INFO L129 PetriNetUnfolder]: 287/754 cut-off events. [2021-03-26 14:31:30,897 INFO L130 PetriNetUnfolder]: For 85981/86013 co-relation queries the response was YES. [2021-03-26 14:31:30,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12173 conditions, 754 events. 287/754 cut-off events. For 85981/86013 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5257 event pairs, 16 based on Foata normal form. 12/762 useless extension candidates. Maximal degree in co-relation 11937. Up to 554 conditions per place. [2021-03-26 14:31:30,906 INFO L132 encePairwiseOnDemand]: 86/102 looper letters, 292 selfloop transitions, 32 changer transitions 0/330 dead transitions. [2021-03-26 14:31:30,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 330 transitions, 8080 flow [2021-03-26 14:31:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-03-26 14:31:30,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2034313725490196 [2021-03-26 14:31:30,907 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-03-26 14:31:30,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-03-26 14:31:30,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:30,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-03-26 14:31:30,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:30,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:30,908 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:30,908 INFO L185 Difference]: Start difference. First operand has 354 places, 328 transitions, 7184 flow. Second operand 8 states and 166 transitions. [2021-03-26 14:31:30,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 330 transitions, 8080 flow [2021-03-26 14:31:31,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 330 transitions, 7923 flow, removed 62 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:31,230 INFO L241 Difference]: Finished difference. Result has 352 places, 325 transitions, 7091 flow [2021-03-26 14:31:31,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6979, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7091, PETRI_PLACES=352, PETRI_TRANSITIONS=325} [2021-03-26 14:31:31,231 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 336 predicate places. [2021-03-26 14:31:31,231 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:31,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 325 transitions, 7091 flow [2021-03-26 14:31:31,231 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 325 transitions, 7091 flow [2021-03-26 14:31:31,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 325 transitions, 7091 flow [2021-03-26 14:31:31,348 INFO L129 PetriNetUnfolder]: 284/748 cut-off events. [2021-03-26 14:31:31,348 INFO L130 PetriNetUnfolder]: For 79108/79123 co-relation queries the response was YES. [2021-03-26 14:31:31,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11219 conditions, 748 events. 284/748 cut-off events. For 79108/79123 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5325 event pairs, 10 based on Foata normal form. 11/755 useless extension candidates. Maximal degree in co-relation 10992. Up to 403 conditions per place. [2021-03-26 14:31:31,359 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:31:31,371 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:31,372 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:31,372 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-26 14:31:31,372 INFO L480 AbstractCegarLoop]: Abstraction has has 352 places, 325 transitions, 7091 flow [2021-03-26 14:31:31,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:31,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:31,372 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:31,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:31,573 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:31,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:31,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1366671606, now seen corresponding path program 1 times [2021-03-26 14:31:31,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:31,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318052895] [2021-03-26 14:31:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:31,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:31,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:31,602 INFO L142 QuantifierPusher]: treesize reduction 85, result has 19.8 percent of original size [2021-03-26 14:31:31,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:31,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:31,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:31,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318052895] [2021-03-26 14:31:31,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920113676] [2021-03-26 14:31:31,622 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 [2021-03-26 14:31:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:31,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:31,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:31,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:31,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:31,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:31,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:31,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,689 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:31,689 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:31,690 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:31,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:31,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:31,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:31,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:31,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:31,705 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 14:31:31,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,723 INFO L142 QuantifierPusher]: treesize reduction 13, result has 77.2 percent of original size [2021-03-26 14:31:31,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:31,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:31,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:31,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:31,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,725 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:31,725 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:31,726 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:31,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:31,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:31:31,747 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 14:31:31,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:31:31,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:31,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:31,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:31:31,750 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 14:31:31,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:31,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:31,752 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:31,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:31,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:31,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:31,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:31,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422286829] [2021-03-26 14:31:31,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:31,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:31,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:31,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:31,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 102 [2021-03-26 14:31:31,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 325 transitions, 7091 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:31,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:31,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 102 [2021-03-26 14:31:31,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:32,198 INFO L129 PetriNetUnfolder]: 290/760 cut-off events. [2021-03-26 14:31:32,198 INFO L130 PetriNetUnfolder]: For 83932/83996 co-relation queries the response was YES. [2021-03-26 14:31:32,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12078 conditions, 760 events. 290/760 cut-off events. For 83932/83996 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5349 event pairs, 15 based on Foata normal form. 21/779 useless extension candidates. Maximal degree in co-relation 11842. Up to 470 conditions per place. [2021-03-26 14:31:32,207 INFO L132 encePairwiseOnDemand]: 88/102 looper letters, 273 selfloop transitions, 32 changer transitions 0/334 dead transitions. [2021-03-26 14:31:32,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 334 transitions, 8139 flow [2021-03-26 14:31:32,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:32,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2021-03-26 14:31:32,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22549019607843138 [2021-03-26 14:31:32,209 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 184 transitions. [2021-03-26 14:31:32,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 184 transitions. [2021-03-26 14:31:32,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:32,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 184 transitions. [2021-03-26 14:31:32,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:32,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:32,210 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:32,210 INFO L185 Difference]: Start difference. First operand has 352 places, 325 transitions, 7091 flow. Second operand 8 states and 184 transitions. [2021-03-26 14:31:32,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 334 transitions, 8139 flow [2021-03-26 14:31:32,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 334 transitions, 8067 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-26 14:31:32,569 INFO L241 Difference]: Finished difference. Result has 355 places, 328 transitions, 7222 flow [2021-03-26 14:31:32,569 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=7022, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7222, PETRI_PLACES=355, PETRI_TRANSITIONS=328} [2021-03-26 14:31:32,569 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 339 predicate places. [2021-03-26 14:31:32,569 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:32,569 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 328 transitions, 7222 flow [2021-03-26 14:31:32,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 328 transitions, 7222 flow [2021-03-26 14:31:32,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 328 transitions, 7222 flow [2021-03-26 14:31:32,684 INFO L129 PetriNetUnfolder]: 290/756 cut-off events. [2021-03-26 14:31:32,684 INFO L130 PetriNetUnfolder]: For 83419/83435 co-relation queries the response was YES. [2021-03-26 14:31:32,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11638 conditions, 756 events. 290/756 cut-off events. For 83419/83435 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5384 event pairs, 14 based on Foata normal form. 7/759 useless extension candidates. Maximal degree in co-relation 11408. Up to 414 conditions per place. [2021-03-26 14:31:32,695 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:31:32,709 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:32,709 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:32,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-26 14:31:32,709 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 328 transitions, 7222 flow [2021-03-26 14:31:32,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:32,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:32,710 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:32,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable366 [2021-03-26 14:31:32,931 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:32,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:32,932 INFO L82 PathProgramCache]: Analyzing trace with hash -359456084, now seen corresponding path program 1 times [2021-03-26 14:31:32,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:32,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332766352] [2021-03-26 14:31:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:32,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:32,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:32,943 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 14:31:32,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:32,949 INFO L142 QuantifierPusher]: treesize reduction 162, result has 34.9 percent of original size [2021-03-26 14:31:32,949 INFO L147 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-03-26 14:31:32,985 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:31:32,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:32,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:32,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:33,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:33,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332766352] [2021-03-26 14:31:33,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808605061] [2021-03-26 14:31:33,005 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 [2021-03-26 14:31:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:33,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:33,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:33,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:33,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:33,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:33,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:33,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,063 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:33,064 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:33,065 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:33,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:33,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:33,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:33,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:33,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:33,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,083 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:33,084 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:33,084 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:33,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:33,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:33,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:33,109 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-03-26 14:31:33,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:31:33,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:31:33,111 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.4 percent of original size [2021-03-26 14:31:33,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:33,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:33,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-26 14:31:33,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:33,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:33,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:33,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:33,191 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 14:31:33,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:33,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:33,194 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:33,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:33,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:33,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:33,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:33,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611587290] [2021-03-26 14:31:33,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:33,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:33,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:33,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:33,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-26 14:31:33,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 328 transitions, 7222 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:33,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:33,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-26 14:31:33,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:33,556 INFO L129 PetriNetUnfolder]: 292/752 cut-off events. [2021-03-26 14:31:33,556 INFO L130 PetriNetUnfolder]: For 85126/85158 co-relation queries the response was YES. [2021-03-26 14:31:33,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12253 conditions, 752 events. 292/752 cut-off events. For 85126/85158 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5158 event pairs, 16 based on Foata normal form. 13/761 useless extension candidates. Maximal degree in co-relation 12014. Up to 565 conditions per place. [2021-03-26 14:31:33,566 INFO L132 encePairwiseOnDemand]: 87/102 looper letters, 290 selfloop transitions, 30 changer transitions 0/325 dead transitions. [2021-03-26 14:31:33,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 325 transitions, 7830 flow [2021-03-26 14:31:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2021-03-26 14:31:33,567 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19730392156862744 [2021-03-26 14:31:33,567 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 161 transitions. [2021-03-26 14:31:33,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 161 transitions. [2021-03-26 14:31:33,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:33,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 161 transitions. [2021-03-26 14:31:33,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:33,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:33,568 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:33,568 INFO L185 Difference]: Start difference. First operand has 355 places, 328 transitions, 7222 flow. Second operand 8 states and 161 transitions. [2021-03-26 14:31:33,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 325 transitions, 7830 flow [2021-03-26 14:31:33,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 325 transitions, 7733 flow, removed 24 selfloop flow, removed 7 redundant places. [2021-03-26 14:31:33,916 INFO L241 Difference]: Finished difference. Result has 351 places, 322 transitions, 6965 flow [2021-03-26 14:31:33,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6857, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6965, PETRI_PLACES=351, PETRI_TRANSITIONS=322} [2021-03-26 14:31:33,916 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 335 predicate places. [2021-03-26 14:31:33,916 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:33,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 351 places, 322 transitions, 6965 flow [2021-03-26 14:31:33,917 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 351 places, 322 transitions, 6965 flow [2021-03-26 14:31:33,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 351 places, 322 transitions, 6965 flow [2021-03-26 14:31:34,049 INFO L129 PetriNetUnfolder]: 289/744 cut-off events. [2021-03-26 14:31:34,049 INFO L130 PetriNetUnfolder]: For 80060/80076 co-relation queries the response was YES. [2021-03-26 14:31:34,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11357 conditions, 744 events. 289/744 cut-off events. For 80060/80076 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5194 event pairs, 13 based on Foata normal form. 7/747 useless extension candidates. Maximal degree in co-relation 11129. Up to 413 conditions per place. [2021-03-26 14:31:34,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 14:31:34,075 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:34,075 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:34,076 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-26 14:31:34,076 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 322 transitions, 6965 flow [2021-03-26 14:31:34,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:34,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:34,076 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:34,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:34,277 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:34,277 INFO L82 PathProgramCache]: Analyzing trace with hash 643543491, now seen corresponding path program 1 times [2021-03-26 14:31:34,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:34,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318468810] [2021-03-26 14:31:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:34,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:34,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:34,310 INFO L142 QuantifierPusher]: treesize reduction 2108, result has 5.0 percent of original size [2021-03-26 14:31:34,311 INFO L147 QuantifierPusher]: treesize reduction 22, result has 80.2 percent of original size 89 [2021-03-26 14:31:34,362 INFO L142 QuantifierPusher]: treesize reduction 25, result has 72.2 percent of original size [2021-03-26 14:31:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:31:34,394 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:31:34,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,417 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:31:34,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:34,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:34,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318468810] [2021-03-26 14:31:34,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423960926] [2021-03-26 14:31:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:34,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:31:34,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:34,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:34,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:34,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:34,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:34,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:34,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:34,490 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 14:31:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:34,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 14:31:34,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:31:34,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,540 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:34,540 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,541 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:34,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:34,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:31:34,594 INFO L142 QuantifierPusher]: treesize reduction 61, result has 86.4 percent of original size [2021-03-26 14:31:34,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:31:34,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-03-26 14:31:34,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:31:34,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 742 [2021-03-26 14:31:34,601 INFO L142 QuantifierPusher]: treesize reduction 2598, result has 6.0 percent of original size [2021-03-26 14:31:34,602 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:31:34,603 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-26 14:31:34,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 14:31:34,721 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-03-26 14:31:34,723 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-26 14:31:34,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:31:34,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:31:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-26 14:31:34,729 INFO L142 QuantifierPusher]: treesize reduction 23, result has 89.7 percent of original size [2021-03-26 14:31:34,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,730 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:34,731 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:31:34,731 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,733 INFO L142 QuantifierPusher]: treesize reduction 152, result has 57.2 percent of original size [2021-03-26 14:31:34,734 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:31:34,735 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,736 INFO L142 QuantifierPusher]: treesize reduction 150, result has 43.8 percent of original size [2021-03-26 14:31:34,736 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:31:34,736 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,737 INFO L142 QuantifierPusher]: treesize reduction 63, result has 41.1 percent of original size [2021-03-26 14:31:34,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:34,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:34,773 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:31:34,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:31:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:31:34,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:31:34,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:31:34,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:31:34,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,778 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 4, 1] term [2021-03-26 14:31:34,778 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:34,779 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,779 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:31:34,779 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:34,780 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,780 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 14:31:34,781 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:34,781 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,781 INFO L142 QuantifierPusher]: treesize reduction 44, result has 42.9 percent of original size [2021-03-26 14:31:34,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:34,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:34,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:34,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:34,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:34,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:34,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,810 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:31:34,810 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:34,811 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,811 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:31:34,811 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:31:34,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:34,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:34,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:34,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:34,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:34,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:34,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:34,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:34,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240860477] [2021-03-26 14:31:34,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:34,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:34,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:34,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:34,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 102 [2021-03-26 14:31:34,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 322 transitions, 6965 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:34,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:34,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 102 [2021-03-26 14:31:34,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:35,088 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-03-26 14:31:35,365 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-03-26 14:31:36,199 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-03-26 14:31:36,377 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-03-26 14:31:36,597 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-26 14:31:36,818 INFO L129 PetriNetUnfolder]: 302/796 cut-off events. [2021-03-26 14:31:36,818 INFO L130 PetriNetUnfolder]: For 89322/89354 co-relation queries the response was YES. [2021-03-26 14:31:36,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13034 conditions, 796 events. 302/796 cut-off events. For 89322/89354 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5604 event pairs, 16 based on Foata normal form. 13/805 useless extension candidates. Maximal degree in co-relation 12797. Up to 609 conditions per place. [2021-03-26 14:31:36,828 INFO L132 encePairwiseOnDemand]: 83/102 looper letters, 294 selfloop transitions, 50 changer transitions 6/354 dead transitions. [2021-03-26 14:31:36,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 354 transitions, 9266 flow [2021-03-26 14:31:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-26 14:31:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-26 14:31:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 304 transitions. [2021-03-26 14:31:36,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14901960784313725 [2021-03-26 14:31:36,830 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 304 transitions. [2021-03-26 14:31:36,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 304 transitions. [2021-03-26 14:31:36,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:36,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 304 transitions. [2021-03-26 14:31:36,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.2) internal successors, (304), 20 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:36,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 102.0) internal successors, (2142), 21 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:36,831 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 102.0) internal successors, (2142), 21 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:36,831 INFO L185 Difference]: Start difference. First operand has 351 places, 322 transitions, 6965 flow. Second operand 20 states and 304 transitions. [2021-03-26 14:31:36,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 354 transitions, 9266 flow [2021-03-26 14:31:37,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 354 transitions, 9194 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:37,192 INFO L241 Difference]: Finished difference. Result has 373 places, 339 transitions, 8141 flow [2021-03-26 14:31:37,192 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6891, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8141, PETRI_PLACES=373, PETRI_TRANSITIONS=339} [2021-03-26 14:31:37,192 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 357 predicate places. [2021-03-26 14:31:37,192 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:37,192 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 339 transitions, 8141 flow [2021-03-26 14:31:37,192 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 339 transitions, 8141 flow [2021-03-26 14:31:37,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 339 transitions, 8141 flow [2021-03-26 14:31:37,333 INFO L129 PetriNetUnfolder]: 297/780 cut-off events. [2021-03-26 14:31:37,333 INFO L130 PetriNetUnfolder]: For 96256/96306 co-relation queries the response was YES. [2021-03-26 14:31:37,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12645 conditions, 780 events. 297/780 cut-off events. For 96256/96306 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5549 event pairs, 14 based on Foata normal form. 8/784 useless extension candidates. Maximal degree in co-relation 12406. Up to 439 conditions per place. [2021-03-26 14:31:37,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 14:31:37,474 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-03-26 14:31:37,639 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2021-03-26 14:31:38,432 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-03-26 14:31:38,656 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:38,656 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 14:31:38,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1464 [2021-03-26 14:31:38,656 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 339 transitions, 8240 flow [2021-03-26 14:31:38,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:38,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:38,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:38,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable372 [2021-03-26 14:31:38,878 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:38,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:38,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1245137714, now seen corresponding path program 1 times [2021-03-26 14:31:38,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:38,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953004900] [2021-03-26 14:31:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:38,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,893 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-26 14:31:38,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:38,900 INFO L142 QuantifierPusher]: treesize reduction 102, result has 34.6 percent of original size [2021-03-26 14:31:38,901 INFO L147 QuantifierPusher]: treesize reduction 23, result has 57.4 percent of original size 31 [2021-03-26 14:31:38,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:38,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:38,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:38,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953004900] [2021-03-26 14:31:38,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78824957] [2021-03-26 14:31:38,942 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 [2021-03-26 14:31:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:38,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-26 14:31:38,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:38,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:38,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:38,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:38,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:39,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:39,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,001 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:39,002 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,002 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:39,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:39,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 14:31:39,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:31:39,022 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size [2021-03-26 14:31:39,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:39,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:31:39,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size [2021-03-26 14:31:39,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:39,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:39,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:31:39,057 INFO L142 QuantifierPusher]: treesize reduction 109, result has 51.3 percent of original size [2021-03-26 14:31:39,058 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:39,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,064 INFO L142 QuantifierPusher]: treesize reduction 90, result has 53.4 percent of original size [2021-03-26 14:31:39,064 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:39,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,066 INFO L142 QuantifierPusher]: treesize reduction 76, result has 44.9 percent of original size [2021-03-26 14:31:39,066 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:39,066 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,067 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-26 14:31:39,068 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:39,069 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:39,069 INFO L142 QuantifierPusher]: treesize reduction 20, result has 37.5 percent of original size [2021-03-26 14:31:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:39,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:39,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:39,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:39,092 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:31:39,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:39,097 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:39,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:39,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:39,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:39,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:39,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234853493] [2021-03-26 14:31:39,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:39,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:39,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:39,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:39,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 108 [2021-03-26 14:31:39,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 339 transitions, 8240 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:39,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:39,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 108 [2021-03-26 14:31:39,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:39,681 INFO L129 PetriNetUnfolder]: 298/773 cut-off events. [2021-03-26 14:31:39,682 INFO L130 PetriNetUnfolder]: For 98654/98694 co-relation queries the response was YES. [2021-03-26 14:31:39,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13261 conditions, 773 events. 298/773 cut-off events. For 98654/98694 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5349 event pairs, 14 based on Foata normal form. 12/780 useless extension candidates. Maximal degree in co-relation 13013. Up to 573 conditions per place. [2021-03-26 14:31:39,693 INFO L132 encePairwiseOnDemand]: 91/108 looper letters, 305 selfloop transitions, 35 changer transitions 0/345 dead transitions. [2021-03-26 14:31:39,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 345 transitions, 9305 flow [2021-03-26 14:31:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-26 14:31:39,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19675925925925927 [2021-03-26 14:31:39,694 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-26 14:31:39,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-26 14:31:39,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:39,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-26 14:31:39,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-03-26 14:31:39,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:39,695 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:39,695 INFO L185 Difference]: Start difference. First operand has 370 places, 339 transitions, 8240 flow. Second operand 8 states and 170 transitions. [2021-03-26 14:31:39,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 345 transitions, 9305 flow [2021-03-26 14:31:40,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 345 transitions, 8569 flow, removed 360 selfloop flow, removed 7 redundant places. [2021-03-26 14:31:40,137 INFO L241 Difference]: Finished difference. Result has 370 places, 339 transitions, 7619 flow [2021-03-26 14:31:40,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7479, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7619, PETRI_PLACES=370, PETRI_TRANSITIONS=339} [2021-03-26 14:31:40,137 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 354 predicate places. [2021-03-26 14:31:40,137 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:40,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 339 transitions, 7619 flow [2021-03-26 14:31:40,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 339 transitions, 7619 flow [2021-03-26 14:31:40,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 339 transitions, 7619 flow [2021-03-26 14:31:40,284 INFO L129 PetriNetUnfolder]: 295/769 cut-off events. [2021-03-26 14:31:40,284 INFO L130 PetriNetUnfolder]: For 92591/92641 co-relation queries the response was YES. [2021-03-26 14:31:40,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12053 conditions, 769 events. 295/769 cut-off events. For 92591/92641 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5441 event pairs, 12 based on Foata normal form. 8/772 useless extension candidates. Maximal degree in co-relation 11814. Up to 425 conditions per place. [2021-03-26 14:31:40,297 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 14:31:40,310 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:40,311 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:40,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 174 [2021-03-26 14:31:40,311 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 339 transitions, 7619 flow [2021-03-26 14:31:40,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:40,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:40,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:40,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:40,512 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash 122697819, now seen corresponding path program 1 times [2021-03-26 14:31:40,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:40,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578075183] [2021-03-26 14:31:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:40,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:40,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:40,559 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 14:31:40,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:31:40,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:40,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:40,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578075183] [2021-03-26 14:31:40,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984259166] [2021-03-26 14:31:40,584 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 [2021-03-26 14:31:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:40,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:40,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:40,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:40,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:40,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:40,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:40,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,647 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:40,647 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:40,648 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:40,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 14:31:40,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 14:31:40,669 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.1 percent of original size [2021-03-26 14:31:40,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:40,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:40,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.0 percent of original size [2021-03-26 14:31:40,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:31:40,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:40,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:40,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:31:40,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,700 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:40,700 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:40,701 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:40,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:40,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:40,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:31:40,731 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 14:31:40,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:31:40,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:40,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:40,735 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-26 14:31:40,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:40,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:40,738 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:40,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:40,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:40,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:40,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:40,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769335050] [2021-03-26 14:31:40,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:40,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:40,745 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 108 [2021-03-26 14:31:40,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 339 transitions, 7619 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:40,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:40,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 108 [2021-03-26 14:31:40,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:41,297 INFO L129 PetriNetUnfolder]: 301/780 cut-off events. [2021-03-26 14:31:41,297 INFO L130 PetriNetUnfolder]: For 95837/95878 co-relation queries the response was YES. [2021-03-26 14:31:41,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 780 events. 301/780 cut-off events. For 95837/95878 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5425 event pairs, 12 based on Foata normal form. 14/791 useless extension candidates. Maximal degree in co-relation 12703. Up to 487 conditions per place. [2021-03-26 14:31:41,309 INFO L132 encePairwiseOnDemand]: 92/108 looper letters, 284 selfloop transitions, 35 changer transitions 0/347 dead transitions. [2021-03-26 14:31:41,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 347 transitions, 8654 flow [2021-03-26 14:31:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:31:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:31:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions. [2021-03-26 14:31:41,310 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21643518518518517 [2021-03-26 14:31:41,310 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 187 transitions. [2021-03-26 14:31:41,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 187 transitions. [2021-03-26 14:31:41,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:41,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 187 transitions. [2021-03-26 14:31:41,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:41,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:41,311 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:41,311 INFO L185 Difference]: Start difference. First operand has 370 places, 339 transitions, 7619 flow. Second operand 8 states and 187 transitions. [2021-03-26 14:31:41,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 347 transitions, 8654 flow [2021-03-26 14:31:41,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 347 transitions, 8572 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:41,739 INFO L241 Difference]: Finished difference. Result has 373 places, 342 transitions, 7760 flow [2021-03-26 14:31:41,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7541, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7760, PETRI_PLACES=373, PETRI_TRANSITIONS=342} [2021-03-26 14:31:41,740 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 357 predicate places. [2021-03-26 14:31:41,740 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:41,740 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 342 transitions, 7760 flow [2021-03-26 14:31:41,740 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 342 transitions, 7760 flow [2021-03-26 14:31:41,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 342 transitions, 7760 flow [2021-03-26 14:31:41,873 INFO L129 PetriNetUnfolder]: 301/779 cut-off events. [2021-03-26 14:31:41,874 INFO L130 PetriNetUnfolder]: For 96897/96947 co-relation queries the response was YES. [2021-03-26 14:31:41,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12502 conditions, 779 events. 301/779 cut-off events. For 96897/96947 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5512 event pairs, 14 based on Foata normal form. 8/782 useless extension candidates. Maximal degree in co-relation 12259. Up to 437 conditions per place. [2021-03-26 14:31:41,887 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 14:31:41,900 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:41,901 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:41,901 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-26 14:31:41,901 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 342 transitions, 7760 flow [2021-03-26 14:31:41,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:31:41,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:41,901 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:42,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable387 [2021-03-26 14:31:42,102 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:42,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:42,102 INFO L82 PathProgramCache]: Analyzing trace with hash -504145939, now seen corresponding path program 2 times [2021-03-26 14:31:42,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:42,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606764835] [2021-03-26 14:31:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,139 INFO L142 QuantifierPusher]: treesize reduction 209, result has 16.1 percent of original size [2021-03-26 14:31:42,139 INFO L147 QuantifierPusher]: treesize reduction 12, result has 70.0 percent of original size 28 [2021-03-26 14:31:42,157 INFO L142 QuantifierPusher]: treesize reduction 219, result has 34.0 percent of original size [2021-03-26 14:31:42,157 INFO L147 QuantifierPusher]: treesize reduction 22, result has 80.5 percent of original size 91 [2021-03-26 14:31:42,210 INFO L142 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-03-26 14:31:42,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,262 INFO L142 QuantifierPusher]: treesize reduction 2167, result has 7.3 percent of original size [2021-03-26 14:31:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,349 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-26 14:31:42,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:42,367 INFO L142 QuantifierPusher]: treesize reduction 12, result has 29.4 percent of original size [2021-03-26 14:31:42,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:42,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606764835] [2021-03-26 14:31:42,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476337407] [2021-03-26 14:31:42,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:42,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:42,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:42,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 36 conjunts are in the unsatisfiable core [2021-03-26 14:31:42,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:42,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:42,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:42,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:42,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,428 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:42,429 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,429 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:42,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:42,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:42,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:42,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:42,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:42,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:42,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:42,453 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.9 percent of original size [2021-03-26 14:31:42,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:31:42,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-03-26 14:31:42,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 616 [2021-03-26 14:31:42,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 766 [2021-03-26 14:31:42,464 INFO L142 QuantifierPusher]: treesize reduction 6621, result has 3.1 percent of original size [2021-03-26 14:31:42,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,465 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:42,465 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,466 INFO L142 QuantifierPusher]: treesize reduction 26, result has 72.9 percent of original size [2021-03-26 14:31:42,469 INFO L147 QuantifierPusher]: treesize reduction 32, result has 36.0 percent of original size 18 [2021-03-26 14:31:42,469 INFO L147 QuantifierPusher]: treesize reduction 32, result has 36.0 percent of original size 18 [2021-03-26 14:31:42,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,471 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-26 14:31:42,471 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:42,472 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,476 INFO L142 QuantifierPusher]: treesize reduction 111, result has 50.4 percent of original size [2021-03-26 14:31:42,478 INFO L147 QuantifierPusher]: treesize reduction 40, result has 63.0 percent of original size 68 [2021-03-26 14:31:42,478 INFO L147 QuantifierPusher]: treesize reduction 40, result has 75.2 percent of original size 121 [2021-03-26 14:31:42,479 INFO L142 QuantifierPusher]: treesize reduction 40, result has 75.2 percent of original size [2021-03-26 14:31:42,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-03-26 14:31:42,568 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-03-26 14:31:42,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:31:42,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-26 14:31:42,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:42,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-26 14:31:42,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,574 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:42,574 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,575 INFO L142 QuantifierPusher]: treesize reduction 30, result has 45.5 percent of original size [2021-03-26 14:31:42,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 14:31:42,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 14:31:42,576 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:42,577 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:42,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-26 14:31:42,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-26 14:31:42,700 INFO L142 QuantifierPusher]: treesize reduction 11, result has 93.3 percent of original size [2021-03-26 14:31:42,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-03-26 14:31:42,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 14:31:42,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-26 14:31:42,705 INFO L142 QuantifierPusher]: treesize reduction 111, result has 62.9 percent of original size [2021-03-26 14:31:42,705 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 2, 1] term [2021-03-26 14:31:42,705 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:42,706 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,706 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 1] term [2021-03-26 14:31:42,706 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:42,707 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,708 INFO L147 QuantifierPusher]: treesize reduction 123, result has 56.1 percent of original size 157 [2021-03-26 14:31:42,709 INFO L142 QuantifierPusher]: treesize reduction 123, result has 56.1 percent of original size [2021-03-26 14:31:42,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:31:42,784 INFO L142 QuantifierPusher]: treesize reduction 33, result has 85.0 percent of original size [2021-03-26 14:31:42,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:42,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 14:31:42,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-03-26 14:31:42,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-03-26 14:31:42,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-26 14:31:42,794 INFO L142 QuantifierPusher]: treesize reduction 23, result has 90.2 percent of original size [2021-03-26 14:31:42,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,797 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:42,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,797 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-03-26 14:31:42,798 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:42,798 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,799 INFO L142 QuantifierPusher]: treesize reduction 33, result has 79.2 percent of original size [2021-03-26 14:31:42,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:31:42,800 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:42,801 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,801 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-26 14:31:42,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:31:42,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:42,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 14:31:42,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:31:42,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-03-26 14:31:42,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,808 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,809 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,810 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.6 percent of original size [2021-03-26 14:31:42,811 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,811 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,813 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-26 14:31:42,813 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,813 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,816 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,816 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,817 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:42,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:42,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:42,823 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,824 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,825 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,825 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,826 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:42,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:42,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:42,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-26 14:31:42,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-26 14:31:42,835 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,836 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,837 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:42,838 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,838 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-26 14:31:42,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:31:42,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:42,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:42,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-26 14:31:42,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-26 14:31:42,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-26 14:31:42,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-26 14:31:42,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-03-26 14:31:42,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,860 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:42,861 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,861 INFO L142 QuantifierPusher]: treesize reduction 33, result has 79.2 percent of original size [2021-03-26 14:31:42,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:31:42,862 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:42,863 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,863 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-26 14:31:42,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:31:42,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:42,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 14:31:42,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:31:42,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-03-26 14:31:42,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,872 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,872 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,874 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.6 percent of original size [2021-03-26 14:31:42,875 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,876 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,877 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-26 14:31:42,878 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,878 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,880 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,881 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,881 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:42,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:42,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:42,887 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,888 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,889 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,889 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,890 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:42,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:42,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-26 14:31:42,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-26 14:31:42,908 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,911 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:42,911 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,912 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-26 14:31:42,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:31:42,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:42,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-26 14:31:42,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-26 14:31:42,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-26 14:31:42,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-26 14:31:42,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-03-26 14:31:42,927 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-26 14:31:42,927 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,929 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.9 percent of original size [2021-03-26 14:31:42,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:31:42,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:42,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,934 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,935 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,937 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:42,937 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,938 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-26 14:31:42,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:31:42,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:42,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-26 14:31:42,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-26 14:31:42,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-03-26 14:31:42,949 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-26 14:31:42,949 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:31:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:31:42,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,957 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:42,958 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,959 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-26 14:31:42,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:31:42,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:42,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:31:42,965 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-03-26 14:31:42,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,967 INFO L142 QuantifierPusher]: treesize reduction 30, result has 86.7 percent of original size [2021-03-26 14:31:42,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:42,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:42,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,973 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:42,974 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,975 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-26 14:31:42,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:42,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:31:42,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:31:42,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 14:31:42,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,981 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,982 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,984 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-26 14:31:42,984 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,985 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:42,988 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,989 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,990 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:42,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:42,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:42,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:42,996 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:42,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,997 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:42,998 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:42,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,999 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:42,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:42,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:43,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:43,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:43,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:43,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:43,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-26 14:31:43,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-26 14:31:43,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-03-26 14:31:43,009 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-26 14:31:43,009 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,010 INFO L142 QuantifierPusher]: treesize reduction 58, result has 83.2 percent of original size [2021-03-26 14:31:43,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:43,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,014 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:43,016 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,017 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:43,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,019 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:43,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:43,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:43,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:43,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:43,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:43,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 14:31:43,027 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:43,028 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:43,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:43,034 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,035 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:43,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:43,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:43,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:31:43,048 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-26 14:31:43,049 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,050 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.8 percent of original size [2021-03-26 14:31:43,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:43,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:43,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:43,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,057 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:31:43,058 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:31:43,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:43,060 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,061 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:43,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:43,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:31:43,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 14:31:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 14:31:43,067 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-26 14:31:43,068 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:43,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,076 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:31:43,077 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,078 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-26 14:31:43,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:43,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-26 14:31:43,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:31:43,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:31:43,084 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-26 14:31:43,084 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,085 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.8 percent of original size [2021-03-26 14:31:43,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:43,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:43,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:43,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:43,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:43,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:43,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,124 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 14:31:43,124 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:43,124 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:43,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:43,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:43,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:43,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166270315] [2021-03-26 14:31:43,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:43,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:43,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:43,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:43,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 108 [2021-03-26 14:31:43,155 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 342 transitions, 7760 flow. Second operand has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 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) [2021-03-26 14:31:43,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:43,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 108 [2021-03-26 14:31:43,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:43,406 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2021-03-26 14:31:43,690 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-03-26 14:31:44,049 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-26 14:31:44,326 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-26 14:31:44,629 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-26 14:31:44,776 INFO L129 PetriNetUnfolder]: 304/791 cut-off events. [2021-03-26 14:31:44,776 INFO L130 PetriNetUnfolder]: For 99581/99619 co-relation queries the response was YES. [2021-03-26 14:31:44,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13418 conditions, 791 events. 304/791 cut-off events. For 99581/99619 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5551 event pairs, 12 based on Foata normal form. 10/796 useless extension candidates. Maximal degree in co-relation 13166. Up to 494 conditions per place. [2021-03-26 14:31:44,786 INFO L132 encePairwiseOnDemand]: 87/108 looper letters, 314 selfloop transitions, 31 changer transitions 6/356 dead transitions. [2021-03-26 14:31:44,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 356 transitions, 9115 flow [2021-03-26 14:31:44,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 188 transitions. [2021-03-26 14:31:44,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17407407407407408 [2021-03-26 14:31:44,788 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 188 transitions. [2021-03-26 14:31:44,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 188 transitions. [2021-03-26 14:31:44,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:44,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 188 transitions. [2021-03-26 14:31:44,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:44,789 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) [2021-03-26 14:31:44,789 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) [2021-03-26 14:31:44,789 INFO L185 Difference]: Start difference. First operand has 373 places, 342 transitions, 7760 flow. Second operand 10 states and 188 transitions. [2021-03-26 14:31:44,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 356 transitions, 9115 flow [2021-03-26 14:31:45,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 356 transitions, 8952 flow, removed 41 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:45,225 INFO L241 Difference]: Finished difference. Result has 380 places, 340 transitions, 7624 flow [2021-03-26 14:31:45,225 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7628, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7624, PETRI_PLACES=380, PETRI_TRANSITIONS=340} [2021-03-26 14:31:45,225 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 364 predicate places. [2021-03-26 14:31:45,225 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:45,225 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 340 transitions, 7624 flow [2021-03-26 14:31:45,225 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 340 transitions, 7624 flow [2021-03-26 14:31:45,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 375 places, 340 transitions, 7624 flow [2021-03-26 14:31:45,356 INFO L129 PetriNetUnfolder]: 300/776 cut-off events. [2021-03-26 14:31:45,356 INFO L130 PetriNetUnfolder]: For 96463/96514 co-relation queries the response was YES. [2021-03-26 14:31:45,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12473 conditions, 776 events. 300/776 cut-off events. For 96463/96514 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5432 event pairs, 15 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 12291. Up to 436 conditions per place. [2021-03-26 14:31:45,369 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 14:31:45,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:45,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:45,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-03-26 14:31:45,383 INFO L480 AbstractCegarLoop]: Abstraction has has 375 places, 340 transitions, 7624 flow [2021-03-26 14:31:45,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 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) [2021-03-26 14:31:45,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:45,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:45,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:45,589 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash -906458325, now seen corresponding path program 1 times [2021-03-26 14:31:45,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:45,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739192949] [2021-03-26 14:31:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:45,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:45,620 INFO L142 QuantifierPusher]: treesize reduction 5144, result has 3.2 percent of original size [2021-03-26 14:31:45,621 INFO L147 QuantifierPusher]: treesize reduction 22, result has 87.2 percent of original size 150 [2021-03-26 14:31:45,669 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:31:45,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:45,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739192949] [2021-03-26 14:31:45,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978537968] [2021-03-26 14:31:45,691 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 [2021-03-26 14:31:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:45,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:31:45,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:45,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:45,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:45,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:45,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:45,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,764 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:45,765 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:45,765 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:45,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:45,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:45,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:45,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:45,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:45,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:45,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:45,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,789 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:45,790 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:45,790 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:31:45,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:45,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:45,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:31:45,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.2 percent of original size [2021-03-26 14:31:45,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-26 14:31:45,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-26 14:31:45,819 INFO L142 QuantifierPusher]: treesize reduction 1317, result has 7.4 percent of original size [2021-03-26 14:31:45,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:45,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:45,904 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.6 percent of original size [2021-03-26 14:31:45,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:45,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:45,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:45,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 14:31:45,907 INFO L142 QuantifierPusher]: treesize reduction 55, result has 38.2 percent of original size [2021-03-26 14:31:45,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:45,911 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:45,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:45,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:45,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:45,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:45,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968012181] [2021-03-26 14:31:45,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:45,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:45,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:45,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:45,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 108 [2021-03-26 14:31:45,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 340 transitions, 7624 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:45,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:45,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 108 [2021-03-26 14:31:45,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:46,469 INFO L129 PetriNetUnfolder]: 307/787 cut-off events. [2021-03-26 14:31:46,470 INFO L130 PetriNetUnfolder]: For 101038/101074 co-relation queries the response was YES. [2021-03-26 14:31:46,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13592 conditions, 787 events. 307/787 cut-off events. For 101038/101074 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5441 event pairs, 16 based on Foata normal form. 14/796 useless extension candidates. Maximal degree in co-relation 13407. Up to 579 conditions per place. [2021-03-26 14:31:46,482 INFO L132 encePairwiseOnDemand]: 89/108 looper letters, 303 selfloop transitions, 39 changer transitions 0/347 dead transitions. [2021-03-26 14:31:46,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 347 transitions, 8983 flow [2021-03-26 14:31:46,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:31:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:31:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2021-03-26 14:31:46,484 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19032921810699588 [2021-03-26 14:31:46,484 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 185 transitions. [2021-03-26 14:31:46,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 185 transitions. [2021-03-26 14:31:46,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:46,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 185 transitions. [2021-03-26 14:31:46,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:46,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 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) [2021-03-26 14:31:46,485 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 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) [2021-03-26 14:31:46,485 INFO L185 Difference]: Start difference. First operand has 375 places, 340 transitions, 7624 flow. Second operand 9 states and 185 transitions. [2021-03-26 14:31:46,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 347 transitions, 8983 flow [2021-03-26 14:31:46,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 347 transitions, 8914 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-03-26 14:31:46,921 INFO L241 Difference]: Finished difference. Result has 371 places, 337 transitions, 7696 flow [2021-03-26 14:31:46,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7446, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7696, PETRI_PLACES=371, PETRI_TRANSITIONS=337} [2021-03-26 14:31:46,921 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 355 predicate places. [2021-03-26 14:31:46,921 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:46,921 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 337 transitions, 7696 flow [2021-03-26 14:31:46,921 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 337 transitions, 7696 flow [2021-03-26 14:31:46,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 337 transitions, 7696 flow [2021-03-26 14:31:47,053 INFO L129 PetriNetUnfolder]: 304/781 cut-off events. [2021-03-26 14:31:47,053 INFO L130 PetriNetUnfolder]: For 93935/93951 co-relation queries the response was YES. [2021-03-26 14:31:47,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12702 conditions, 781 events. 304/781 cut-off events. For 93935/93951 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5469 event pairs, 15 based on Foata normal form. 7/783 useless extension candidates. Maximal degree in co-relation 12460. Up to 446 conditions per place. [2021-03-26 14:31:47,066 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:47,277 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:47,277 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:47,277 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 356 [2021-03-26 14:31:47,277 INFO L480 AbstractCegarLoop]: Abstraction has has 371 places, 337 transitions, 7706 flow [2021-03-26 14:31:47,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:47,277 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:47,277 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:47,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable442 [2021-03-26 14:31:47,481 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:47,481 INFO L82 PathProgramCache]: Analyzing trace with hash 491203957, now seen corresponding path program 1 times [2021-03-26 14:31:47,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:47,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033234001] [2021-03-26 14:31:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:47,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:47,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:31:47,518 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-26 14:31:47,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:47,530 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:31:47,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:31:47,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:47,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033234001] [2021-03-26 14:31:47,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475894750] [2021-03-26 14:31:47,545 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 [2021-03-26 14:31:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:47,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:31:47,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:47,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:47,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:47,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:47,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,595 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:47,596 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,596 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:47,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-26 14:31:47,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-26 14:31:47,617 INFO L142 QuantifierPusher]: treesize reduction 309, result has 25.4 percent of original size [2021-03-26 14:31:47,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:47,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:31:47,737 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2021-03-26 14:31:47,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.0 percent of original size [2021-03-26 14:31:47,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 14:31:47,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 14:31:47,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,741 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:47,741 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,742 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-26 14:31:47,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-26 14:31:47,787 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-03-26 14:31:47,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 14:31:47,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:47,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:31:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,791 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:47,791 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,792 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 14:31:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:47,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:31:47,819 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-26 14:31:47,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:31:47,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:31:47,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:47,821 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-26 14:31:47,821 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:47,822 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:47,822 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-26 14:31:47,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:31:47,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:47,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:47,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:47,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 14:31:47,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357848962] [2021-03-26 14:31:47,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:31:47,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:47,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:31:47,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:31:47,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 109 [2021-03-26 14:31:47,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 337 transitions, 7706 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:31:47,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:47,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 109 [2021-03-26 14:31:47,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:48,359 INFO L129 PetriNetUnfolder]: 305/785 cut-off events. [2021-03-26 14:31:48,385 INFO L130 PetriNetUnfolder]: For 96316/96352 co-relation queries the response was YES. [2021-03-26 14:31:48,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13472 conditions, 785 events. 305/785 cut-off events. For 96316/96352 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5439 event pairs, 18 based on Foata normal form. 11/791 useless extension candidates. Maximal degree in co-relation 13221. Up to 589 conditions per place. [2021-03-26 14:31:48,396 INFO L132 encePairwiseOnDemand]: 90/109 looper letters, 298 selfloop transitions, 35 changer transitions 2/340 dead transitions. [2021-03-26 14:31:48,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 340 transitions, 8578 flow [2021-03-26 14:31:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2021-03-26 14:31:48,397 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17706422018348625 [2021-03-26 14:31:48,397 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 193 transitions. [2021-03-26 14:31:48,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 193 transitions. [2021-03-26 14:31:48,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:48,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 193 transitions. [2021-03-26 14:31:48,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.3) internal successors, (193), 10 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:48,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:48,398 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:48,398 INFO L185 Difference]: Start difference. First operand has 371 places, 337 transitions, 7706 flow. Second operand 10 states and 193 transitions. [2021-03-26 14:31:48,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 340 transitions, 8578 flow [2021-03-26 14:31:48,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 340 transitions, 8334 flow, removed 70 selfloop flow, removed 5 redundant places. [2021-03-26 14:31:48,774 INFO L241 Difference]: Finished difference. Result has 375 places, 333 transitions, 7485 flow [2021-03-26 14:31:48,775 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=7445, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7485, PETRI_PLACES=375, PETRI_TRANSITIONS=333} [2021-03-26 14:31:48,775 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 359 predicate places. [2021-03-26 14:31:48,775 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:48,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 375 places, 333 transitions, 7485 flow [2021-03-26 14:31:48,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 375 places, 333 transitions, 7485 flow [2021-03-26 14:31:48,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 333 transitions, 7485 flow [2021-03-26 14:31:48,916 INFO L129 PetriNetUnfolder]: 302/774 cut-off events. [2021-03-26 14:31:48,916 INFO L130 PetriNetUnfolder]: For 91854/91869 co-relation queries the response was YES. [2021-03-26 14:31:48,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12538 conditions, 774 events. 302/774 cut-off events. For 91854/91869 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5437 event pairs, 16 based on Foata normal form. 11/780 useless extension candidates. Maximal degree in co-relation 12297. Up to 445 conditions per place. [2021-03-26 14:31:48,932 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:49,175 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2021-03-26 14:31:49,245 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:49,245 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:31:49,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 471 [2021-03-26 14:31:49,246 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 333 transitions, 7513 flow [2021-03-26 14:31:49,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:31:49,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:49,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:49,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:49,447 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:49,447 INFO L82 PathProgramCache]: Analyzing trace with hash -847418967, now seen corresponding path program 1 times [2021-03-26 14:31:49,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:49,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449782454] [2021-03-26 14:31:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:49,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,460 INFO L142 QuantifierPusher]: treesize reduction 28, result has 26.3 percent of original size [2021-03-26 14:31:49,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:49,468 INFO L142 QuantifierPusher]: treesize reduction 25, result has 55.4 percent of original size [2021-03-26 14:31:49,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:31:49,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:31:49,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:49,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449782454] [2021-03-26 14:31:49,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646371733] [2021-03-26 14:31:49,498 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 [2021-03-26 14:31:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:49,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:31:49,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:49,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:49,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:49,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:49,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,561 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:49,561 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,562 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:49,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:49,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-26 14:31:49,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 14:31:49,583 INFO L142 QuantifierPusher]: treesize reduction 34, result has 64.6 percent of original size [2021-03-26 14:31:49,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:31:49,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:31:49,620 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.4 percent of original size [2021-03-26 14:31:49,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:31:49,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 14:31:49,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:31:49,630 INFO L142 QuantifierPusher]: treesize reduction 109, result has 54.2 percent of original size [2021-03-26 14:31:49,630 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:49,631 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,632 INFO L142 QuantifierPusher]: treesize reduction 91, result has 58.8 percent of original size [2021-03-26 14:31:49,633 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:49,634 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,634 INFO L142 QuantifierPusher]: treesize reduction 89, result has 46.1 percent of original size [2021-03-26 14:31:49,635 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:49,635 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:49,636 INFO L142 QuantifierPusher]: treesize reduction 80, result has 39.8 percent of original size [2021-03-26 14:31:49,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:31:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:49,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:31:49,659 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:31:49,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:49,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:31:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:49,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:49,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:49,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:31:49,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675441062] [2021-03-26 14:31:49,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:31:49,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:49,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:31:49,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:31:49,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 110 [2021-03-26 14:31:49,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 333 transitions, 7513 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:49,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:49,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 110 [2021-03-26 14:31:49,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:50,128 INFO L129 PetriNetUnfolder]: 302/760 cut-off events. [2021-03-26 14:31:50,129 INFO L130 PetriNetUnfolder]: For 91944/91980 co-relation queries the response was YES. [2021-03-26 14:31:50,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13030 conditions, 760 events. 302/760 cut-off events. For 91944/91980 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5177 event pairs, 15 based on Foata normal form. 13/769 useless extension candidates. Maximal degree in co-relation 12780. Up to 580 conditions per place. [2021-03-26 14:31:50,138 INFO L132 encePairwiseOnDemand]: 92/110 looper letters, 297 selfloop transitions, 32 changer transitions 0/334 dead transitions. [2021-03-26 14:31:50,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 334 transitions, 8328 flow [2021-03-26 14:31:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:31:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:31:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2021-03-26 14:31:50,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2 [2021-03-26 14:31:50,140 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2021-03-26 14:31:50,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2021-03-26 14:31:50,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:50,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2021-03-26 14:31:50,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.0) internal successors, (154), 7 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) [2021-03-26 14:31:50,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:50,140 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:50,140 INFO L185 Difference]: Start difference. First operand has 373 places, 333 transitions, 7513 flow. Second operand 7 states and 154 transitions. [2021-03-26 14:31:50,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 334 transitions, 8328 flow [2021-03-26 14:31:50,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 334 transitions, 8232 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-03-26 14:31:50,502 INFO L241 Difference]: Finished difference. Result has 368 places, 329 transitions, 7374 flow [2021-03-26 14:31:50,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=7310, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7374, PETRI_PLACES=368, PETRI_TRANSITIONS=329} [2021-03-26 14:31:50,502 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 352 predicate places. [2021-03-26 14:31:50,502 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:50,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 368 places, 329 transitions, 7374 flow [2021-03-26 14:31:50,502 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 368 places, 329 transitions, 7374 flow [2021-03-26 14:31:50,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 368 places, 329 transitions, 7374 flow [2021-03-26 14:31:50,644 INFO L129 PetriNetUnfolder]: 299/757 cut-off events. [2021-03-26 14:31:50,644 INFO L130 PetriNetUnfolder]: For 87743/87772 co-relation queries the response was YES. [2021-03-26 14:31:50,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12203 conditions, 757 events. 299/757 cut-off events. For 87743/87772 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5229 event pairs, 15 based on Foata normal form. 5/758 useless extension candidates. Maximal degree in co-relation 11964. Up to 435 conditions per place. [2021-03-26 14:31:50,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 14:31:50,667 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:50,667 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:50,668 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-26 14:31:50,668 INFO L480 AbstractCegarLoop]: Abstraction has has 368 places, 329 transitions, 7374 flow [2021-03-26 14:31:50,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:31:50,668 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:50,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:50,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:31:50,869 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:50,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:50,869 INFO L82 PathProgramCache]: Analyzing trace with hash -419765640, now seen corresponding path program 1 times [2021-03-26 14:31:50,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:50,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140502055] [2021-03-26 14:31:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:50,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:50,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:50,896 INFO L142 QuantifierPusher]: treesize reduction 38, result has 63.1 percent of original size [2021-03-26 14:31:50,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:31:50,937 INFO L142 QuantifierPusher]: treesize reduction 60, result has 59.5 percent of original size [2021-03-26 14:31:50,938 INFO L147 QuantifierPusher]: treesize reduction 28, result has 68.2 percent of original size 60 [2021-03-26 14:31:51,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:51,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:31:51,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:51,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140502055] [2021-03-26 14:31:51,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943355057] [2021-03-26 14:31:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:31:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:51,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:31:51,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:51,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:51,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:51,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:51,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:51,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:51,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:51,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:51,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,135 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:51,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,136 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:51,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:51,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:31:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:31:51,163 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-26 14:31:51,163 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:51,163 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,164 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:51,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:51,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:51,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:51,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.2 percent of original size [2021-03-26 14:31:51,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:51,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 14:31:51,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:51,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:31:51,209 INFO L142 QuantifierPusher]: treesize reduction 107, result has 50.2 percent of original size [2021-03-26 14:31:51,210 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-26 14:31:51,211 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-26 14:31:51,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:31:51,277 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-26 14:31:51,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:31:51,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-26 14:31:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-03-26 14:31:51,284 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.7 percent of original size [2021-03-26 14:31:51,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,286 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:51,286 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:51,287 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,288 INFO L142 QuantifierPusher]: treesize reduction 162, result has 43.2 percent of original size [2021-03-26 14:31:51,290 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:31:51,291 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,292 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.7 percent of original size [2021-03-26 14:31:51,294 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:51,295 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,296 INFO L142 QuantifierPusher]: treesize reduction 38, result has 72.7 percent of original size [2021-03-26 14:31:51,296 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:51,297 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,297 INFO L142 QuantifierPusher]: treesize reduction 44, result has 57.7 percent of original size [2021-03-26 14:31:51,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:51,303 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-03-26 14:31:51,303 INFO L147 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size 17 [2021-03-26 14:31:51,304 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-26 14:31:51,304 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-26 14:31:51,305 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-26 14:31:51,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:51,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:51,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:51,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:51,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:51,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,346 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:31:51,346 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:51,346 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,347 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-26 14:31:51,347 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size [2021-03-26 14:31:51,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:51,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:51,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:51,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,385 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-26 14:31:51,385 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:51,385 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,386 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-26 14:31:51,386 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-26 14:31:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:51,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:51,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:51,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405900271] [2021-03-26 14:31:51,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:51,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:51,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:51,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:51,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-26 14:31:51,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 329 transitions, 7374 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:51,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:51,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-26 14:31:51,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:52,473 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2021-03-26 14:31:52,708 INFO L129 PetriNetUnfolder]: 305/770 cut-off events. [2021-03-26 14:31:52,708 INFO L130 PetriNetUnfolder]: For 93095/93131 co-relation queries the response was YES. [2021-03-26 14:31:52,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 770 events. 305/770 cut-off events. For 93095/93131 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5274 event pairs, 9 based on Foata normal form. 10/776 useless extension candidates. Maximal degree in co-relation 12997. Up to 446 conditions per place. [2021-03-26 14:31:52,719 INFO L132 encePairwiseOnDemand]: 70/110 looper letters, 151 selfloop transitions, 192 changer transitions 1/348 dead transitions. [2021-03-26 14:31:52,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 348 transitions, 9001 flow [2021-03-26 14:31:52,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 14:31:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 14:31:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 219 transitions. [2021-03-26 14:31:52,720 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15314685314685314 [2021-03-26 14:31:52,720 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 219 transitions. [2021-03-26 14:31:52,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 219 transitions. [2021-03-26 14:31:52,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:52,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 219 transitions. [2021-03-26 14:31:52,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 13 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:52,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 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) [2021-03-26 14:31:52,721 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 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) [2021-03-26 14:31:52,721 INFO L185 Difference]: Start difference. First operand has 368 places, 329 transitions, 7374 flow. Second operand 13 states and 219 transitions. [2021-03-26 14:31:52,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 348 transitions, 9001 flow [2021-03-26 14:31:53,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 348 transitions, 8934 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:53,112 INFO L241 Difference]: Finished difference. Result has 377 places, 336 transitions, 8151 flow [2021-03-26 14:31:53,112 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=7307, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8151, PETRI_PLACES=377, PETRI_TRANSITIONS=336} [2021-03-26 14:31:53,112 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 361 predicate places. [2021-03-26 14:31:53,112 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:53,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 336 transitions, 8151 flow [2021-03-26 14:31:53,112 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 336 transitions, 8151 flow [2021-03-26 14:31:53,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 336 transitions, 8151 flow [2021-03-26 14:31:53,255 INFO L129 PetriNetUnfolder]: 302/766 cut-off events. [2021-03-26 14:31:53,255 INFO L130 PetriNetUnfolder]: For 96076/96156 co-relation queries the response was YES. [2021-03-26 14:31:53,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12841 conditions, 766 events. 302/766 cut-off events. For 96076/96156 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5287 event pairs, 15 based on Foata normal form. 1/763 useless extension candidates. Maximal degree in co-relation 12596. Up to 442 conditions per place. [2021-03-26 14:31:53,267 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:31:53,585 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:53,586 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:31:53,586 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 474 [2021-03-26 14:31:53,586 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 336 transitions, 8161 flow [2021-03-26 14:31:53,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:53,586 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:53,586 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:53,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable455 [2021-03-26 14:31:53,787 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:53,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1465821107, now seen corresponding path program 1 times [2021-03-26 14:31:53,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:53,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030401137] [2021-03-26 14:31:53,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:53,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:53,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:53,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:53,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:53,833 INFO L142 QuantifierPusher]: treesize reduction 123, result has 15.2 percent of original size [2021-03-26 14:31:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:53,864 INFO L142 QuantifierPusher]: treesize reduction 156, result has 25.7 percent of original size [2021-03-26 14:31:53,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:31:53,904 INFO L142 QuantifierPusher]: treesize reduction 105, result has 37.5 percent of original size [2021-03-26 14:31:53,904 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.3 percent of original size 55 [2021-03-26 14:31:53,948 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-26 14:31:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:31:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:53,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:53,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030401137] [2021-03-26 14:31:53,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577346280] [2021-03-26 14:31:53,989 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 [2021-03-26 14:31:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:54,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:31:54,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:54,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:54,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:54,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:54,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,040 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:54,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,041 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:54,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:31:54,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:31:54,060 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-26 14:31:54,061 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:54,061 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,061 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:54,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:54,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 86.6 percent of original size [2021-03-26 14:31:54,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:31:54,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:54,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:31:54,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,096 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:54,096 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,097 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:54,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:54,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:54,129 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.8 percent of original size [2021-03-26 14:31:54,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:54,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 14:31:54,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:54,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-26 14:31:54,134 INFO L142 QuantifierPusher]: treesize reduction 1255, result has 13.0 percent of original size [2021-03-26 14:31:54,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,136 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-26 14:31:54,136 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:31:54,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,137 INFO L142 QuantifierPusher]: treesize reduction 34, result has 75.0 percent of original size [2021-03-26 14:31:54,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:31:54,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-26 14:31:54,139 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:54,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,140 INFO L142 QuantifierPusher]: treesize reduction 66, result has 64.3 percent of original size [2021-03-26 14:31:54,142 INFO L147 QuantifierPusher]: treesize reduction 31, result has 68.7 percent of original size 68 [2021-03-26 14:31:54,143 INFO L147 QuantifierPusher]: treesize reduction 31, result has 75.4 percent of original size 95 [2021-03-26 14:31:54,143 INFO L142 QuantifierPusher]: treesize reduction 31, result has 75.4 percent of original size [2021-03-26 14:31:54,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:31:54,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:31:54,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:31:54,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:31:54,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:31:54,226 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.4 percent of original size [2021-03-26 14:31:54,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:31:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-03-26 14:31:54,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-03-26 14:31:54,231 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.2 percent of original size [2021-03-26 14:31:54,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,232 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:54,232 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:54,233 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,234 INFO L142 QuantifierPusher]: treesize reduction 100, result has 58.7 percent of original size [2021-03-26 14:31:54,234 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:54,234 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,235 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.7 percent of original size [2021-03-26 14:31:54,235 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:54,235 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,236 INFO L142 QuantifierPusher]: treesize reduction 80, result has 47.0 percent of original size [2021-03-26 14:31:54,237 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:31:54,238 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,248 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-26 14:31:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:31:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:31:54,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:31:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:54,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:54,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:54,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:54,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:54,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:54,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,290 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 14:31:54,290 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:54,290 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:54,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:54,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:54,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887559982] [2021-03-26 14:31:54,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:54,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:54,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:54,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:54,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 112 [2021-03-26 14:31:54,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 336 transitions, 8161 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:54,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:54,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 112 [2021-03-26 14:31:54,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:55,004 INFO L129 PetriNetUnfolder]: 302/769 cut-off events. [2021-03-26 14:31:55,004 INFO L130 PetriNetUnfolder]: For 97796/97832 co-relation queries the response was YES. [2021-03-26 14:31:55,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13661 conditions, 769 events. 302/769 cut-off events. For 97796/97832 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5269 event pairs, 15 based on Foata normal form. 11/776 useless extension candidates. Maximal degree in co-relation 13407. Up to 621 conditions per place. [2021-03-26 14:31:55,015 INFO L132 encePairwiseOnDemand]: 92/112 looper letters, 302 selfloop transitions, 31 changer transitions 1/338 dead transitions. [2021-03-26 14:31:55,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 338 transitions, 8993 flow [2021-03-26 14:31:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:31:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:31:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2021-03-26 14:31:55,018 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15714285714285714 [2021-03-26 14:31:55,018 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 176 transitions. [2021-03-26 14:31:55,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 176 transitions. [2021-03-26 14:31:55,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:55,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 176 transitions. [2021-03-26 14:31:55,018 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) [2021-03-26 14:31:55,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:55,019 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:55,019 INFO L185 Difference]: Start difference. First operand has 376 places, 336 transitions, 8161 flow. Second operand 10 states and 176 transitions. [2021-03-26 14:31:55,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 338 transitions, 8993 flow [2021-03-26 14:31:55,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 338 transitions, 8354 flow, removed 216 selfloop flow, removed 6 redundant places. [2021-03-26 14:31:55,610 INFO L241 Difference]: Finished difference. Result has 381 places, 334 transitions, 7602 flow [2021-03-26 14:31:55,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=7456, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7602, PETRI_PLACES=381, PETRI_TRANSITIONS=334} [2021-03-26 14:31:55,611 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 365 predicate places. [2021-03-26 14:31:55,611 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:55,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 334 transitions, 7602 flow [2021-03-26 14:31:55,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 334 transitions, 7602 flow [2021-03-26 14:31:55,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 334 transitions, 7602 flow [2021-03-26 14:31:55,810 INFO L129 PetriNetUnfolder]: 299/759 cut-off events. [2021-03-26 14:31:55,811 INFO L130 PetriNetUnfolder]: For 95489/95502 co-relation queries the response was YES. [2021-03-26 14:31:55,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12594 conditions, 759 events. 299/759 cut-off events. For 95489/95502 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5276 event pairs, 15 based on Foata normal form. 9/764 useless extension candidates. Maximal degree in co-relation 12350. Up to 433 conditions per place. [2021-03-26 14:31:55,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 14:31:55,939 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-26 14:31:56,110 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-26 14:31:56,366 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 14:31:56,366 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 14:31:56,366 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 755 [2021-03-26 14:31:56,367 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 333 transitions, 7612 flow [2021-03-26 14:31:56,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:56,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:56,367 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:56,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable464 [2021-03-26 14:31:56,572 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:56,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1806565307, now seen corresponding path program 1 times [2021-03-26 14:31:56,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:56,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293553462] [2021-03-26 14:31:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:56,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:56,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:56,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:56,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:56,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293553462] [2021-03-26 14:31:56,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:31:56,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:31:56,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085819992] [2021-03-26 14:31:56,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 14:31:56,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:56,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 14:31:56,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 14:31:56,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 114 [2021-03-26 14:31:56,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 333 transitions, 7612 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:56,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:56,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 114 [2021-03-26 14:31:56,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:56,841 INFO L129 PetriNetUnfolder]: 291/750 cut-off events. [2021-03-26 14:31:56,841 INFO L130 PetriNetUnfolder]: For 98287/98345 co-relation queries the response was YES. [2021-03-26 14:31:56,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12870 conditions, 750 events. 291/750 cut-off events. For 98287/98345 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5160 event pairs, 16 based on Foata normal form. 12/758 useless extension candidates. Maximal degree in co-relation 12627. Up to 427 conditions per place. [2021-03-26 14:31:56,851 INFO L132 encePairwiseOnDemand]: 100/114 looper letters, 111 selfloop transitions, 32 changer transitions 1/325 dead transitions. [2021-03-26 14:31:56,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 325 transitions, 7821 flow [2021-03-26 14:31:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 14:31:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 14:31:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2021-03-26 14:31:56,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2021-03-26 14:31:56,852 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 272 transitions. [2021-03-26 14:31:56,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 272 transitions. [2021-03-26 14:31:56,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:56,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 272 transitions. [2021-03-26 14:31:56,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:56,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:56,853 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:56,853 INFO L185 Difference]: Start difference. First operand has 379 places, 333 transitions, 7612 flow. Second operand 4 states and 272 transitions. [2021-03-26 14:31:56,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 325 transitions, 7821 flow [2021-03-26 14:31:57,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 325 transitions, 7613 flow, removed 55 selfloop flow, removed 12 redundant places. [2021-03-26 14:31:57,287 INFO L241 Difference]: Finished difference. Result has 371 places, 323 transitions, 7384 flow [2021-03-26 14:31:57,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7225, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=7384, PETRI_PLACES=371, PETRI_TRANSITIONS=323} [2021-03-26 14:31:57,287 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 355 predicate places. [2021-03-26 14:31:57,288 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:57,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 323 transitions, 7384 flow [2021-03-26 14:31:57,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 323 transitions, 7384 flow [2021-03-26 14:31:57,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 323 transitions, 7384 flow [2021-03-26 14:31:57,418 INFO L129 PetriNetUnfolder]: 291/750 cut-off events. [2021-03-26 14:31:57,418 INFO L130 PetriNetUnfolder]: For 93388/93404 co-relation queries the response was YES. [2021-03-26 14:31:57,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12429 conditions, 750 events. 291/750 cut-off events. For 93388/93404 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5256 event pairs, 15 based on Foata normal form. 7/753 useless extension candidates. Maximal degree in co-relation 12185. Up to 425 conditions per place. [2021-03-26 14:31:57,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 14:31:57,444 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:57,445 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:57,445 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-26 14:31:57,445 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 323 transitions, 7384 flow [2021-03-26 14:31:57,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:57,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:57,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:57,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-03-26 14:31:57,445 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:57,445 INFO L82 PathProgramCache]: Analyzing trace with hash 168388995, now seen corresponding path program 1 times [2021-03-26 14:31:57,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:57,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223100723] [2021-03-26 14:31:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:57,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:57,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:57,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:57,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:31:57,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:57,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:57,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223100723] [2021-03-26 14:31:57,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:31:57,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 14:31:57,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847821432] [2021-03-26 14:31:57,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 14:31:57,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:57,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 14:31:57,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 14:31:57,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 114 [2021-03-26 14:31:57,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 323 transitions, 7384 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:57,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:57,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 114 [2021-03-26 14:31:57,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:57,687 INFO L129 PetriNetUnfolder]: 297/759 cut-off events. [2021-03-26 14:31:57,688 INFO L130 PetriNetUnfolder]: For 100356/100413 co-relation queries the response was YES. [2021-03-26 14:31:57,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13157 conditions, 759 events. 297/759 cut-off events. For 100356/100413 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5208 event pairs, 15 based on Foata normal form. 6/761 useless extension candidates. Maximal degree in co-relation 12909. Up to 437 conditions per place. [2021-03-26 14:31:57,699 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 155 selfloop transitions, 25 changer transitions 1/327 dead transitions. [2021-03-26 14:31:57,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 327 transitions, 8077 flow [2021-03-26 14:31:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 14:31:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 14:31:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2021-03-26 14:31:57,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6637426900584795 [2021-03-26 14:31:57,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2021-03-26 14:31:57,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2021-03-26 14:31:57,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:31:57,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2021-03-26 14:31:57,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:57,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:57,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:57,701 INFO L185 Difference]: Start difference. First operand has 370 places, 323 transitions, 7384 flow. Second operand 3 states and 227 transitions. [2021-03-26 14:31:57,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 327 transitions, 8077 flow [2021-03-26 14:31:58,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 327 transitions, 8053 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-26 14:31:58,166 INFO L241 Difference]: Finished difference. Result has 372 places, 322 transitions, 7501 flow [2021-03-26 14:31:58,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7346, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=7501, PETRI_PLACES=372, PETRI_TRANSITIONS=322} [2021-03-26 14:31:58,166 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 356 predicate places. [2021-03-26 14:31:58,167 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:31:58,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 322 transitions, 7501 flow [2021-03-26 14:31:58,167 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 322 transitions, 7501 flow [2021-03-26 14:31:58,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 322 transitions, 7501 flow [2021-03-26 14:31:58,293 INFO L129 PetriNetUnfolder]: 297/758 cut-off events. [2021-03-26 14:31:58,294 INFO L130 PetriNetUnfolder]: For 99594/99634 co-relation queries the response was YES. [2021-03-26 14:31:58,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13022 conditions, 758 events. 297/758 cut-off events. For 99594/99634 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5291 event pairs, 16 based on Foata normal form. 1/757 useless extension candidates. Maximal degree in co-relation 12778. Up to 438 conditions per place. [2021-03-26 14:31:58,311 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 14:31:58,323 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:31:58,323 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:31:58,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-26 14:31:58,324 INFO L480 AbstractCegarLoop]: Abstraction has has 371 places, 322 transitions, 7501 flow [2021-03-26 14:31:58,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:31:58,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:31:58,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:31:58,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-03-26 14:31:58,324 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:31:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:31:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash -421584176, now seen corresponding path program 2 times [2021-03-26 14:31:58,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:31:58,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579634304] [2021-03-26 14:31:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:31:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:31:58,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:31:58,363 INFO L142 QuantifierPusher]: treesize reduction 526, result has 36.1 percent of original size [2021-03-26 14:31:58,364 INFO L147 QuantifierPusher]: treesize reduction 143, result has 51.9 percent of original size 154 [2021-03-26 14:31:58,447 INFO L142 QuantifierPusher]: treesize reduction 847, result has 18.3 percent of original size [2021-03-26 14:31:58,448 INFO L147 QuantifierPusher]: treesize reduction 82, result has 56.8 percent of original size 108 [2021-03-26 14:31:58,525 INFO L142 QuantifierPusher]: treesize reduction 96, result has 56.6 percent of original size [2021-03-26 14:31:58,526 INFO L147 QuantifierPusher]: treesize reduction 47, result has 62.4 percent of original size 78 [2021-03-26 14:31:58,583 INFO L142 QuantifierPusher]: treesize reduction 51, result has 61.4 percent of original size [2021-03-26 14:31:58,584 INFO L147 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size 56 [2021-03-26 14:31:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:31:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:58,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579634304] [2021-03-26 14:31:58,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025511507] [2021-03-26 14:31:58,632 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 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 [2021-03-26 14:31:58,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:31:58,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:31:58,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 14:31:58,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:31:58,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:31:58,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:58,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:31:58,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:31:58,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:58,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,689 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:58,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:58,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:58,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:58,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:31:58,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:31:58,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:31:58,710 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-26 14:31:58,710 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:31:58,710 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,711 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:31:58,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:31:58,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:58,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:31:58,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size [2021-03-26 14:31:58,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:58,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:31:58,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:31:58,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:31:58,751 INFO L142 QuantifierPusher]: treesize reduction 107, result has 50.2 percent of original size [2021-03-26 14:31:58,752 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-26 14:31:58,752 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-26 14:31:58,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:31:58,803 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-26 14:31:58,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:58,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:31:58,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-26 14:31:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-03-26 14:31:58,808 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.7 percent of original size [2021-03-26 14:31:58,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,809 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:31:58,810 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:58,810 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,811 INFO L142 QuantifierPusher]: treesize reduction 162, result has 43.2 percent of original size [2021-03-26 14:31:58,813 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:31:58,813 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,814 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.7 percent of original size [2021-03-26 14:31:58,816 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:31:58,816 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,817 INFO L142 QuantifierPusher]: treesize reduction 38, result has 72.7 percent of original size [2021-03-26 14:31:58,818 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:31:58,818 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,819 INFO L142 QuantifierPusher]: treesize reduction 44, result has 57.7 percent of original size [2021-03-26 14:31:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:31:58,823 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-03-26 14:31:58,823 INFO L147 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size 17 [2021-03-26 14:31:58,824 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-26 14:31:58,824 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-26 14:31:58,825 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-26 14:31:58,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:31:58,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:58,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:31:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 14:31:58,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,856 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:31:58,856 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:58,857 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,857 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-26 14:31:58,858 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size [2021-03-26 14:31:58,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:58,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:58,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:58,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:58,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:31:58,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:58,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:58,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:31:58,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:31:58,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:31:58,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,890 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-26 14:31:58,890 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:31:58,890 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,891 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-26 14:31:58,891 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-26 14:31:58,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:58,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:58,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:58,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:58,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:31:58,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:31:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:31:58,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:31:58,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:31:58,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435900736] [2021-03-26 14:31:58,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:31:58,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:31:58,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:31:58,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:31:58,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-26 14:31:58,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 322 transitions, 7501 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:31:58,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:31:58,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-26 14:31:58,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:31:59,402 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2021-03-26 14:31:59,794 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-03-26 14:32:00,031 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-03-26 14:32:00,179 INFO L129 PetriNetUnfolder]: 300/766 cut-off events. [2021-03-26 14:32:00,179 INFO L130 PetriNetUnfolder]: For 101801/101809 co-relation queries the response was YES. [2021-03-26 14:32:00,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13784 conditions, 766 events. 300/766 cut-off events. For 101801/101809 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5282 event pairs, 4 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 13531. Up to 455 conditions per place. [2021-03-26 14:32:00,191 INFO L132 encePairwiseOnDemand]: 78/114 looper letters, 197 selfloop transitions, 129 changer transitions 4/334 dead transitions. [2021-03-26 14:32:00,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 334 transitions, 8568 flow [2021-03-26 14:32:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:32:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:32:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 180 transitions. [2021-03-26 14:32:00,192 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15789473684210525 [2021-03-26 14:32:00,193 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 180 transitions. [2021-03-26 14:32:00,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 180 transitions. [2021-03-26 14:32:00,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:00,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 180 transitions. [2021-03-26 14:32:00,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.0) internal successors, (180), 10 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:00,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:00,194 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:00,194 INFO L185 Difference]: Start difference. First operand has 371 places, 322 transitions, 7501 flow. Second operand 10 states and 180 transitions. [2021-03-26 14:32:00,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 334 transitions, 8568 flow [2021-03-26 14:32:00,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 334 transitions, 8536 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-03-26 14:32:00,666 INFO L241 Difference]: Finished difference. Result has 381 places, 321 transitions, 7738 flow [2021-03-26 14:32:00,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7483, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7738, PETRI_PLACES=381, PETRI_TRANSITIONS=321} [2021-03-26 14:32:00,667 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 365 predicate places. [2021-03-26 14:32:00,667 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:00,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 321 transitions, 7738 flow [2021-03-26 14:32:00,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 321 transitions, 7738 flow [2021-03-26 14:32:00,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 321 transitions, 7738 flow [2021-03-26 14:32:00,819 INFO L129 PetriNetUnfolder]: 297/752 cut-off events. [2021-03-26 14:32:00,819 INFO L130 PetriNetUnfolder]: For 95744/95757 co-relation queries the response was YES. [2021-03-26 14:32:00,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13028 conditions, 752 events. 297/752 cut-off events. For 95744/95757 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5208 event pairs, 15 based on Foata normal form. 9/759 useless extension candidates. Maximal degree in co-relation 12779. Up to 437 conditions per place. [2021-03-26 14:32:00,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 14:32:00,848 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:00,848 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:00,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-26 14:32:00,849 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 321 transitions, 7738 flow [2021-03-26 14:32:00,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:00,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:00,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:01,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable477 [2021-03-26 14:32:01,050 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:01,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:01,050 INFO L82 PathProgramCache]: Analyzing trace with hash -2117375880, now seen corresponding path program 1 times [2021-03-26 14:32:01,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:01,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365483942] [2021-03-26 14:32:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:01,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,074 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:32:01,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:01,082 INFO L142 QuantifierPusher]: treesize reduction 189, result has 22.2 percent of original size [2021-03-26 14:32:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:32:01,129 INFO L142 QuantifierPusher]: treesize reduction 201, result has 25.8 percent of original size [2021-03-26 14:32:01,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:32:01,182 INFO L142 QuantifierPusher]: treesize reduction 1954, result has 11.3 percent of original size [2021-03-26 14:32:01,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-03-26 14:32:01,281 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:01,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365483942] [2021-03-26 14:32:01,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926342494] [2021-03-26 14:32:01,310 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 [2021-03-26 14:32:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:01,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:32:01,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:01,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:01,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:01,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:01,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:01,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,373 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,374 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,375 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:01,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:01,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:01,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:01,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:01,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:01,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:32:01,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,397 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,398 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,398 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:01,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:01,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:01,431 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size [2021-03-26 14:32:01,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:01,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:32:01,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:01,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:32:01,435 INFO L142 QuantifierPusher]: treesize reduction 107, result has 46.8 percent of original size [2021-03-26 14:32:01,436 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-26 14:32:01,437 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-26 14:32:01,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 14:32:01,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:32:01,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:32:01,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:32:01,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:32:01,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,500 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:32:01,500 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,500 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,501 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:32:01,501 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,501 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,502 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 14:32:01,503 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,503 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,504 INFO L142 QuantifierPusher]: treesize reduction 55, result has 54.5 percent of original size [2021-03-26 14:32:01,504 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:01,505 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,505 INFO L142 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size [2021-03-26 14:32:01,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:01,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:01,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:32:01,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:32:01,555 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-26 14:32:01,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:01,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 14:32:01,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 14:32:01,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 14:32:01,560 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-26 14:32:01,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,562 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:01,562 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:01,563 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,564 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-26 14:32:01,566 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:01,567 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,568 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-26 14:32:01,568 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:01,568 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,569 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-26 14:32:01,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:32:01,574 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 14:32:01,574 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:32:01,575 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:32:01,575 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 14:32:01,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:32:01,616 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:32:01,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:32:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:01,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:32:01,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:01,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,623 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:32:01,623 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:01,624 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,625 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:32:01,625 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:01,626 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:01,627 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:32:01,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:01,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:01,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:01,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:01,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400692022] [2021-03-26 14:32:01,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:01,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:01,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:01,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:01,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-26 14:32:01,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 321 transitions, 7738 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:01,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:01,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-26 14:32:01,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:02,879 INFO L129 PetriNetUnfolder]: 299/770 cut-off events. [2021-03-26 14:32:02,879 INFO L130 PetriNetUnfolder]: For 99184/99192 co-relation queries the response was YES. [2021-03-26 14:32:02,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13975 conditions, 770 events. 299/770 cut-off events. For 99184/99192 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5341 event pairs, 15 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 13717. Up to 625 conditions per place. [2021-03-26 14:32:02,891 INFO L132 encePairwiseOnDemand]: 101/114 looper letters, 289 selfloop transitions, 43 changer transitions 1/337 dead transitions. [2021-03-26 14:32:02,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 337 transitions, 9174 flow [2021-03-26 14:32:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:32:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:32:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2021-03-26 14:32:02,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1440058479532164 [2021-03-26 14:32:02,892 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 197 transitions. [2021-03-26 14:32:02,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 197 transitions. [2021-03-26 14:32:02,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:02,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 197 transitions. [2021-03-26 14:32:02,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:02,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:02,893 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:02,893 INFO L185 Difference]: Start difference. First operand has 379 places, 321 transitions, 7738 flow. Second operand 12 states and 197 transitions. [2021-03-26 14:32:02,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 337 transitions, 9174 flow [2021-03-26 14:32:03,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 337 transitions, 9133 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-26 14:32:03,333 INFO L241 Difference]: Finished difference. Result has 388 places, 332 transitions, 8385 flow [2021-03-26 14:32:03,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7701, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8385, PETRI_PLACES=388, PETRI_TRANSITIONS=332} [2021-03-26 14:32:03,334 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 372 predicate places. [2021-03-26 14:32:03,334 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:03,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 332 transitions, 8385 flow [2021-03-26 14:32:03,334 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 332 transitions, 8385 flow [2021-03-26 14:32:03,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 332 transitions, 8385 flow [2021-03-26 14:32:03,519 INFO L129 PetriNetUnfolder]: 296/760 cut-off events. [2021-03-26 14:32:03,519 INFO L130 PetriNetUnfolder]: For 99623/99632 co-relation queries the response was YES. [2021-03-26 14:32:03,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13340 conditions, 760 events. 296/760 cut-off events. For 99623/99632 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5318 event pairs, 14 based on Foata normal form. 4/762 useless extension candidates. Maximal degree in co-relation 13086. Up to 441 conditions per place. [2021-03-26 14:32:03,533 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:04,484 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 14:32:04,484 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 14:32:04,484 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1150 [2021-03-26 14:32:04,484 INFO L480 AbstractCegarLoop]: Abstraction has has 385 places, 330 transitions, 8452 flow [2021-03-26 14:32:04,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:04,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:04,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:04,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable486 [2021-03-26 14:32:04,685 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:04,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:04,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1817418226, now seen corresponding path program 2 times [2021-03-26 14:32:04,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:04,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026739102] [2021-03-26 14:32:04,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:32:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:04,705 INFO L142 QuantifierPusher]: treesize reduction 199, result has 18.8 percent of original size [2021-03-26 14:32:04,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:32:04,742 INFO L142 QuantifierPusher]: treesize reduction 201, result has 26.1 percent of original size [2021-03-26 14:32:04,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 14:32:04,775 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:32:04,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:04,795 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:04,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:04,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026739102] [2021-03-26 14:32:04,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625788581] [2021-03-26 14:32:04,816 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 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 [2021-03-26 14:32:04,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:32:04,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:04,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 14:32:04,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:04,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,865 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:04,865 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,866 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:04,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:04,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:04,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:32:04,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,885 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:04,885 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,886 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:04,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:04,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:04,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:04,914 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-26 14:32:04,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:32:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:04,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:04,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 14:32:04,918 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 14:32:04,919 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 14:32:04,920 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 14:32:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 14:32:05,084 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-26 14:32:05,085 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-26 14:32:05,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:05,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 14:32:05,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 14:32:05,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:32:05,091 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-26 14:32:05,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,093 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:05,093 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:05,094 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,095 INFO L142 QuantifierPusher]: treesize reduction 240, result has 36.7 percent of original size [2021-03-26 14:32:05,097 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:32:05,097 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,098 INFO L142 QuantifierPusher]: treesize reduction 81, result has 61.2 percent of original size [2021-03-26 14:32:05,099 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:05,099 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,100 INFO L142 QuantifierPusher]: treesize reduction 127, result has 27.0 percent of original size [2021-03-26 14:32:05,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:05,105 INFO L147 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size 29 [2021-03-26 14:32:05,105 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 14:32:05,106 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 14:32:05,106 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-03-26 14:32:05,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:32:05,147 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:32:05,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:05,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:05,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:05,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:05,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:32:05,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,153 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:32:05,153 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:05,154 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,155 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:32:05,155 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:05,156 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,157 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:32:05,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:05,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:05,188 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:32:05,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:05,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,193 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:32:05,193 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:05,193 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,194 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:32:05,194 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:05,195 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:05,196 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 14:32:05,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:05,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:05,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:05,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:05,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289651312] [2021-03-26 14:32:05,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:05,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:05,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:05,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:05,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 120 [2021-03-26 14:32:05,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 330 transitions, 8452 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:05,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:05,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 120 [2021-03-26 14:32:05,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:05,811 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-03-26 14:32:06,863 INFO L129 PetriNetUnfolder]: 309/806 cut-off events. [2021-03-26 14:32:06,864 INFO L130 PetriNetUnfolder]: For 108455/108463 co-relation queries the response was YES. [2021-03-26 14:32:06,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14920 conditions, 806 events. 309/806 cut-off events. For 108455/108463 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5705 event pairs, 15 based on Foata normal form. 6/810 useless extension candidates. Maximal degree in co-relation 14657. Up to 626 conditions per place. [2021-03-26 14:32:06,873 INFO L132 encePairwiseOnDemand]: 101/120 looper letters, 297 selfloop transitions, 57 changer transitions 6/364 dead transitions. [2021-03-26 14:32:06,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 364 transitions, 10695 flow [2021-03-26 14:32:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-26 14:32:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-26 14:32:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 307 transitions. [2021-03-26 14:32:06,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12791666666666668 [2021-03-26 14:32:06,875 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 307 transitions. [2021-03-26 14:32:06,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 307 transitions. [2021-03-26 14:32:06,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:06,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 307 transitions. [2021-03-26 14:32:06,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.35) internal successors, (307), 20 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:06,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 120.0) internal successors, (2520), 21 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:06,876 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 120.0) internal successors, (2520), 21 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:06,876 INFO L185 Difference]: Start difference. First operand has 385 places, 330 transitions, 8452 flow. Second operand 20 states and 307 transitions. [2021-03-26 14:32:06,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 364 transitions, 10695 flow [2021-03-26 14:32:07,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 364 transitions, 10403 flow, removed 143 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:07,324 INFO L241 Difference]: Finished difference. Result has 409 places, 348 transitions, 9324 flow [2021-03-26 14:32:07,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=7947, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9324, PETRI_PLACES=409, PETRI_TRANSITIONS=348} [2021-03-26 14:32:07,324 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 393 predicate places. [2021-03-26 14:32:07,324 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:07,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 348 transitions, 9324 flow [2021-03-26 14:32:07,324 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 348 transitions, 9324 flow [2021-03-26 14:32:07,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 348 transitions, 9324 flow [2021-03-26 14:32:07,462 INFO L129 PetriNetUnfolder]: 305/791 cut-off events. [2021-03-26 14:32:07,463 INFO L130 PetriNetUnfolder]: For 108053/108059 co-relation queries the response was YES. [2021-03-26 14:32:07,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14178 conditions, 791 events. 305/791 cut-off events. For 108053/108059 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5614 event pairs, 12 based on Foata normal form. 6/795 useless extension candidates. Maximal degree in co-relation 13937. Up to 456 conditions per place. [2021-03-26 14:32:07,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:08,733 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:08,733 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 14:32:08,733 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1409 [2021-03-26 14:32:08,734 INFO L480 AbstractCegarLoop]: Abstraction has has 404 places, 347 transitions, 9367 flow [2021-03-26 14:32:08,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:08,734 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:08,734 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:08,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable498 [2021-03-26 14:32:08,934 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:08,934 INFO L82 PathProgramCache]: Analyzing trace with hash -488589979, now seen corresponding path program 1 times [2021-03-26 14:32:08,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:08,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754242032] [2021-03-26 14:32:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:08,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:08,946 INFO L142 QuantifierPusher]: treesize reduction 69, result has 8.0 percent of original size [2021-03-26 14:32:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:08,951 INFO L142 QuantifierPusher]: treesize reduction 213, result has 26.3 percent of original size [2021-03-26 14:32:08,952 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.5 percent of original size 68 [2021-03-26 14:32:08,987 INFO L142 QuantifierPusher]: treesize reduction 95, result has 15.2 percent of original size [2021-03-26 14:32:08,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:32:08,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:08,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:08,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754242032] [2021-03-26 14:32:08,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:08,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:32:08,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149896715] [2021-03-26 14:32:08,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:32:08,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:08,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:32:08,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:32:08,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-26 14:32:08,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 347 transitions, 9367 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:08,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:08,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-26 14:32:08,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:09,370 INFO L129 PetriNetUnfolder]: 306/780 cut-off events. [2021-03-26 14:32:09,370 INFO L130 PetriNetUnfolder]: For 110210/110218 co-relation queries the response was YES. [2021-03-26 14:32:09,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 780 events. 306/780 cut-off events. For 110210/110218 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5386 event pairs, 13 based on Foata normal form. 1/778 useless extension candidates. Maximal degree in co-relation 14482. Up to 611 conditions per place. [2021-03-26 14:32:09,381 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 309 selfloop transitions, 30 changer transitions 1/345 dead transitions. [2021-03-26 14:32:09,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 345 transitions, 9910 flow [2021-03-26 14:32:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:32:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:32:09,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2021-03-26 14:32:09,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2031496062992126 [2021-03-26 14:32:09,382 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 129 transitions. [2021-03-26 14:32:09,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 129 transitions. [2021-03-26 14:32:09,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:09,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 129 transitions. [2021-03-26 14:32:09,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.8) internal successors, (129), 5 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) [2021-03-26 14:32:09,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:09,383 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:09,383 INFO L185 Difference]: Start difference. First operand has 404 places, 347 transitions, 9367 flow. Second operand 5 states and 129 transitions. [2021-03-26 14:32:09,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 345 transitions, 9910 flow [2021-03-26 14:32:09,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 345 transitions, 9138 flow, removed 368 selfloop flow, removed 8 redundant places. [2021-03-26 14:32:09,952 INFO L241 Difference]: Finished difference. Result has 398 places, 342 transitions, 8392 flow [2021-03-26 14:32:09,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8356, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8392, PETRI_PLACES=398, PETRI_TRANSITIONS=342} [2021-03-26 14:32:09,952 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 382 predicate places. [2021-03-26 14:32:09,952 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:09,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 398 places, 342 transitions, 8392 flow [2021-03-26 14:32:09,952 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 398 places, 342 transitions, 8392 flow [2021-03-26 14:32:09,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 342 transitions, 8392 flow [2021-03-26 14:32:10,082 INFO L129 PetriNetUnfolder]: 303/774 cut-off events. [2021-03-26 14:32:10,083 INFO L130 PetriNetUnfolder]: For 101041/101047 co-relation queries the response was YES. [2021-03-26 14:32:10,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13450 conditions, 774 events. 303/774 cut-off events. For 101041/101047 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5395 event pairs, 13 based on Foata normal form. 6/777 useless extension candidates. Maximal degree in co-relation 13189. Up to 440 conditions per place. [2021-03-26 14:32:10,101 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:10,122 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:10,122 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:10,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-26 14:32:10,122 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 342 transitions, 8392 flow [2021-03-26 14:32:10,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:10,122 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:10,122 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:10,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-03-26 14:32:10,123 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:10,123 INFO L82 PathProgramCache]: Analyzing trace with hash -620414296, now seen corresponding path program 4 times [2021-03-26 14:32:10,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:10,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534489157] [2021-03-26 14:32:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:10,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:10,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:10,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:10,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:10,137 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:32:10,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:10,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:10,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:10,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:10,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:10,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:10,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:10,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534489157] [2021-03-26 14:32:10,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:10,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:10,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83864446] [2021-03-26 14:32:10,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:10,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:10,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:10,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:10,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-26 14:32:10,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 342 transitions, 8392 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:10,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:10,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-26 14:32:10,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:10,517 INFO L129 PetriNetUnfolder]: 305/766 cut-off events. [2021-03-26 14:32:10,517 INFO L130 PetriNetUnfolder]: For 102877/102885 co-relation queries the response was YES. [2021-03-26 14:32:10,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14079 conditions, 766 events. 305/766 cut-off events. For 102877/102885 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5198 event pairs, 14 based on Foata normal form. 2/765 useless extension candidates. Maximal degree in co-relation 13809. Up to 624 conditions per place. [2021-03-26 14:32:10,528 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 326 selfloop transitions, 12 changer transitions 1/344 dead transitions. [2021-03-26 14:32:10,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 344 transitions, 9235 flow [2021-03-26 14:32:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:32:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:32:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2021-03-26 14:32:10,529 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19028871391076116 [2021-03-26 14:32:10,529 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 145 transitions. [2021-03-26 14:32:10,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 145 transitions. [2021-03-26 14:32:10,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:10,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 145 transitions. [2021-03-26 14:32:10,529 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) [2021-03-26 14:32:10,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:10,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:10,530 INFO L185 Difference]: Start difference. First operand has 395 places, 342 transitions, 8392 flow. Second operand 6 states and 145 transitions. [2021-03-26 14:32:10,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 344 transitions, 9235 flow [2021-03-26 14:32:11,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 344 transitions, 9122 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:11,165 INFO L241 Difference]: Finished difference. Result has 395 places, 339 transitions, 8251 flow [2021-03-26 14:32:11,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8264, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8251, PETRI_PLACES=395, PETRI_TRANSITIONS=339} [2021-03-26 14:32:11,165 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 379 predicate places. [2021-03-26 14:32:11,165 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:11,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 339 transitions, 8251 flow [2021-03-26 14:32:11,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 339 transitions, 8251 flow [2021-03-26 14:32:11,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 381 places, 339 transitions, 8251 flow [2021-03-26 14:32:11,291 INFO L129 PetriNetUnfolder]: 302/759 cut-off events. [2021-03-26 14:32:11,291 INFO L130 PetriNetUnfolder]: For 100344/100364 co-relation queries the response was YES. [2021-03-26 14:32:11,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13236 conditions, 759 events. 302/759 cut-off events. For 100344/100364 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5216 event pairs, 12 based on Foata normal form. 9/765 useless extension candidates. Maximal degree in co-relation 12975. Up to 437 conditions per place. [2021-03-26 14:32:11,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 14:32:11,316 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:11,317 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:11,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-26 14:32:11,317 INFO L480 AbstractCegarLoop]: Abstraction has has 381 places, 339 transitions, 8251 flow [2021-03-26 14:32:11,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:11,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:11,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:11,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-03-26 14:32:11,317 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:11,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:11,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1629550745, now seen corresponding path program 1 times [2021-03-26 14:32:11,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:11,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91626501] [2021-03-26 14:32:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:11,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,328 INFO L142 QuantifierPusher]: treesize reduction 68, result has 12.8 percent of original size [2021-03-26 14:32:11,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:32:11,336 INFO L142 QuantifierPusher]: treesize reduction 65, result has 26.1 percent of original size [2021-03-26 14:32:11,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:11,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:11,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:11,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91626501] [2021-03-26 14:32:11,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803344391] [2021-03-26 14:32:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:11,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:11,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:11,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:11,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:11,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:11,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:11,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:11,435 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:11,436 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:11,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:11,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:11,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:11,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-26 14:32:11,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 14:32:11,456 INFO L142 QuantifierPusher]: treesize reduction 383, result has 13.9 percent of original size [2021-03-26 14:32:11,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:32:11,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:32:11,498 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-26 14:32:11,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:32:11,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:11,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 14:32:11,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:32:11,503 INFO L142 QuantifierPusher]: treesize reduction 109, result has 54.2 percent of original size [2021-03-26 14:32:11,503 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:11,504 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:11,505 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 14:32:11,507 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:11,508 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:11,509 INFO L142 QuantifierPusher]: treesize reduction 84, result has 44.0 percent of original size [2021-03-26 14:32:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:11,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:11,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:11,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:11,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:11,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:11,533 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:11,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:11,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:11,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:11,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:11,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782293363] [2021-03-26 14:32:11,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:11,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:11,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:11,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:11,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-26 14:32:11,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 339 transitions, 8251 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:11,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:11,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-26 14:32:11,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:11,956 INFO L129 PetriNetUnfolder]: 306/761 cut-off events. [2021-03-26 14:32:11,956 INFO L130 PetriNetUnfolder]: For 102689/102697 co-relation queries the response was YES. [2021-03-26 14:32:11,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14037 conditions, 761 events. 306/761 cut-off events. For 102689/102697 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5144 event pairs, 13 based on Foata normal form. 4/762 useless extension candidates. Maximal degree in co-relation 13767. Up to 588 conditions per place. [2021-03-26 14:32:11,967 INFO L132 encePairwiseOnDemand]: 115/127 looper letters, 299 selfloop transitions, 45 changer transitions 0/349 dead transitions. [2021-03-26 14:32:11,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 349 transitions, 9520 flow [2021-03-26 14:32:11,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:32:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:32:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-26 14:32:11,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1732283464566929 [2021-03-26 14:32:11,968 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-26 14:32:11,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-26 14:32:11,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:11,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-26 14:32:11,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 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) [2021-03-26 14:32:11,969 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) [2021-03-26 14:32:11,969 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) [2021-03-26 14:32:11,969 INFO L185 Difference]: Start difference. First operand has 381 places, 339 transitions, 8251 flow. Second operand 8 states and 176 transitions. [2021-03-26 14:32:11,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 349 transitions, 9520 flow [2021-03-26 14:32:12,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 349 transitions, 9400 flow, removed 36 selfloop flow, removed 8 redundant places. [2021-03-26 14:32:12,442 INFO L241 Difference]: Finished difference. Result has 380 places, 341 transitions, 8412 flow [2021-03-26 14:32:12,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8119, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8412, PETRI_PLACES=380, PETRI_TRANSITIONS=341} [2021-03-26 14:32:12,442 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 364 predicate places. [2021-03-26 14:32:12,442 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:12,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 341 transitions, 8412 flow [2021-03-26 14:32:12,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 341 transitions, 8412 flow [2021-03-26 14:32:12,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 341 transitions, 8412 flow [2021-03-26 14:32:12,566 INFO L129 PetriNetUnfolder]: 303/756 cut-off events. [2021-03-26 14:32:12,566 INFO L130 PetriNetUnfolder]: For 96463/96479 co-relation queries the response was YES. [2021-03-26 14:32:12,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13128 conditions, 756 events. 303/756 cut-off events. For 96463/96479 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5151 event pairs, 13 based on Foata normal form. 7/760 useless extension candidates. Maximal degree in co-relation 12869. Up to 438 conditions per place. [2021-03-26 14:32:12,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 14:32:12,591 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:12,591 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:12,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 149 [2021-03-26 14:32:12,591 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 341 transitions, 8412 flow [2021-03-26 14:32:12,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:12,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:12,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:12,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable510 [2021-03-26 14:32:12,792 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:12,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:12,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1054692538, now seen corresponding path program 1 times [2021-03-26 14:32:12,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:12,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183343247] [2021-03-26 14:32:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:12,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:12,811 INFO L142 QuantifierPusher]: treesize reduction 2139, result has 2.1 percent of original size [2021-03-26 14:32:12,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:12,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:12,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:12,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:12,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183343247] [2021-03-26 14:32:12,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982062440] [2021-03-26 14:32:12,848 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 [2021-03-26 14:32:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:12,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:12,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:12,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:12,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:12,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:12,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:12,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:12,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:12,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,918 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:32:12,918 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:32:12,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:12,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 14:32:12,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:32:12,922 INFO L142 QuantifierPusher]: treesize reduction 383, result has 12.8 percent of original size [2021-03-26 14:32:12,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:12,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:12,949 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.9 percent of original size [2021-03-26 14:32:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-03-26 14:32:12,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:12,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-03-26 14:32:12,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 486 [2021-03-26 14:32:12,953 INFO L142 QuantifierPusher]: treesize reduction 659, result has 16.4 percent of original size [2021-03-26 14:32:12,953 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:12,954 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:12,955 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 14:32:12,955 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:12,955 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:12,956 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-26 14:32:12,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:12,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:12,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:12,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:12,977 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:12,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:12,979 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:12,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:12,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:32:12,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919471617] [2021-03-26 14:32:12,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:32:12,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:12,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:32:12,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:32:12,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-26 14:32:12,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 341 transitions, 8412 flow. Second operand has 8 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) [2021-03-26 14:32:12,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:12,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-26 14:32:12,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:13,487 INFO L129 PetriNetUnfolder]: 313/782 cut-off events. [2021-03-26 14:32:13,487 INFO L130 PetriNetUnfolder]: For 103633/103641 co-relation queries the response was YES. [2021-03-26 14:32:13,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14492 conditions, 782 events. 313/782 cut-off events. For 103633/103641 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5335 event pairs, 14 based on Foata normal form. 4/783 useless extension candidates. Maximal degree in co-relation 14224. Up to 622 conditions per place. [2021-03-26 14:32:13,504 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 328 selfloop transitions, 22 changer transitions 0/355 dead transitions. [2021-03-26 14:32:13,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 355 transitions, 10009 flow [2021-03-26 14:32:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:32:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:32:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 203 transitions. [2021-03-26 14:32:13,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15984251968503937 [2021-03-26 14:32:13,506 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 203 transitions. [2021-03-26 14:32:13,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 203 transitions. [2021-03-26 14:32:13,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:13,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 203 transitions. [2021-03-26 14:32:13,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:13,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:13,507 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:13,507 INFO L185 Difference]: Start difference. First operand has 380 places, 341 transitions, 8412 flow. Second operand 10 states and 203 transitions. [2021-03-26 14:32:13,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 355 transitions, 10009 flow [2021-03-26 14:32:14,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 355 transitions, 9807 flow, removed 65 selfloop flow, removed 6 redundant places. [2021-03-26 14:32:14,013 INFO L241 Difference]: Finished difference. Result has 383 places, 347 transitions, 8759 flow [2021-03-26 14:32:14,013 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8191, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8759, PETRI_PLACES=383, PETRI_TRANSITIONS=347} [2021-03-26 14:32:14,014 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 367 predicate places. [2021-03-26 14:32:14,014 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:14,014 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 383 places, 347 transitions, 8759 flow [2021-03-26 14:32:14,014 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 383 places, 347 transitions, 8759 flow [2021-03-26 14:32:14,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 383 places, 347 transitions, 8759 flow [2021-03-26 14:32:14,153 INFO L129 PetriNetUnfolder]: 310/777 cut-off events. [2021-03-26 14:32:14,153 INFO L130 PetriNetUnfolder]: For 103235/103251 co-relation queries the response was YES. [2021-03-26 14:32:14,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13672 conditions, 777 events. 310/777 cut-off events. For 103235/103251 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5355 event pairs, 14 based on Foata normal form. 7/781 useless extension candidates. Maximal degree in co-relation 13414. Up to 456 conditions per place. [2021-03-26 14:32:14,165 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:14,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:14,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:14,180 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-26 14:32:14,180 INFO L480 AbstractCegarLoop]: Abstraction has has 383 places, 347 transitions, 8759 flow [2021-03-26 14:32:14,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:32:14,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:14,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:14,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable514 [2021-03-26 14:32:14,380 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:14,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1321909047, now seen corresponding path program 1 times [2021-03-26 14:32:14,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:14,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513020132] [2021-03-26 14:32:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:14,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:14,406 INFO L142 QuantifierPusher]: treesize reduction 332, result has 59.7 percent of original size [2021-03-26 14:32:14,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 492 [2021-03-26 14:32:14,595 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2021-03-26 14:32:14,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:14,630 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:32:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:14,656 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:14,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:14,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:14,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513020132] [2021-03-26 14:32:14,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694175005] [2021-03-26 14:32:14,685 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 [2021-03-26 14:32:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:14,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 14:32:14,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:14,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:14,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:14,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:14,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:14,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:14,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,758 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:32:14,758 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:32:14,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:14,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 14:32:14,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:32:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:32:14,763 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.0 percent of original size [2021-03-26 14:32:14,763 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:14,764 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,765 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:32:14,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:32:14,798 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-26 14:32:14,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:32:14,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-03-26 14:32:14,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:14,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:14,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:32:14,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 763 [2021-03-26 14:32:14,820 INFO L142 QuantifierPusher]: treesize reduction 11956, result has 3.2 percent of original size [2021-03-26 14:32:14,822 INFO L147 QuantifierPusher]: treesize reduction 32, result has 91.6 percent of original size 350 [2021-03-26 14:32:14,824 INFO L142 QuantifierPusher]: treesize reduction 32, result has 91.6 percent of original size [2021-03-26 14:32:14,826 INFO L147 QuantifierPusher]: treesize reduction 9, result has 97.4 percent of original size 341 [2021-03-26 14:32:15,052 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2021-03-26 14:32:15,053 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.2 percent of original size [2021-03-26 14:32:15,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:15,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 14:32:15,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-03-26 14:32:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-03-26 14:32:15,058 INFO L142 QuantifierPusher]: treesize reduction 107, result has 63.5 percent of original size [2021-03-26 14:32:15,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,059 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:15,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:32:15,060 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,068 INFO L142 QuantifierPusher]: treesize reduction 151, result has 53.8 percent of original size [2021-03-26 14:32:15,068 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:32:15,069 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,070 INFO L142 QuantifierPusher]: treesize reduction 135, result has 47.3 percent of original size [2021-03-26 14:32:15,071 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:15,071 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,072 INFO L142 QuantifierPusher]: treesize reduction 115, result has 46.5 percent of original size [2021-03-26 14:32:15,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:15,073 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,074 INFO L142 QuantifierPusher]: treesize reduction 72, result has 54.7 percent of original size [2021-03-26 14:32:15,074 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:15,075 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,076 INFO L142 QuantifierPusher]: treesize reduction 68, result has 31.3 percent of original size [2021-03-26 14:32:15,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:15,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:15,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:15,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:32:15,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:32:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,129 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:32:15,129 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:15,129 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:15,171 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 14:32:15,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:15,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:15,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:15,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:15,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:32:15,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,177 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2021-03-26 14:32:15,177 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:15,178 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,179 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:32:15,179 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:15,179 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,180 INFO L147 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size 37 [2021-03-26 14:32:15,180 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:15,181 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:15,182 INFO L142 QuantifierPusher]: treesize reduction 100, result has 20.6 percent of original size [2021-03-26 14:32:15,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:15,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:15,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:32:15,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876325113] [2021-03-26 14:32:15,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:32:15,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:15,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:32:15,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:32:15,206 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 127 [2021-03-26 14:32:15,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 347 transitions, 8759 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:32:15,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:15,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 127 [2021-03-26 14:32:15,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:16,183 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-26 14:32:16,453 INFO L129 PetriNetUnfolder]: 322/817 cut-off events. [2021-03-26 14:32:16,453 INFO L130 PetriNetUnfolder]: For 109434/109442 co-relation queries the response was YES. [2021-03-26 14:32:16,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15242 conditions, 817 events. 322/817 cut-off events. For 109434/109442 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5706 event pairs, 14 based on Foata normal form. 3/817 useless extension candidates. Maximal degree in co-relation 14975. Up to 674 conditions per place. [2021-03-26 14:32:16,466 INFO L132 encePairwiseOnDemand]: 118/127 looper letters, 339 selfloop transitions, 26 changer transitions 4/373 dead transitions. [2021-03-26 14:32:16,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 373 transitions, 10930 flow [2021-03-26 14:32:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 14:32:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 14:32:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 236 transitions. [2021-03-26 14:32:16,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1327334083239595 [2021-03-26 14:32:16,467 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 236 transitions. [2021-03-26 14:32:16,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 236 transitions. [2021-03-26 14:32:16,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:16,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 236 transitions. [2021-03-26 14:32:16,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:16,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:16,468 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:16,468 INFO L185 Difference]: Start difference. First operand has 383 places, 347 transitions, 8759 flow. Second operand 14 states and 236 transitions. [2021-03-26 14:32:16,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 373 transitions, 10930 flow [2021-03-26 14:32:17,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 373 transitions, 10620 flow, removed 143 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:17,028 INFO L241 Difference]: Finished difference. Result has 396 places, 361 transitions, 9366 flow [2021-03-26 14:32:17,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8449, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9366, PETRI_PLACES=396, PETRI_TRANSITIONS=361} [2021-03-26 14:32:17,028 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 380 predicate places. [2021-03-26 14:32:17,028 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:17,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 361 transitions, 9366 flow [2021-03-26 14:32:17,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 361 transitions, 9366 flow [2021-03-26 14:32:17,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 361 transitions, 9366 flow [2021-03-26 14:32:17,176 INFO L129 PetriNetUnfolder]: 318/809 cut-off events. [2021-03-26 14:32:17,176 INFO L130 PetriNetUnfolder]: For 112154/112235 co-relation queries the response was YES. [2021-03-26 14:32:17,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14462 conditions, 809 events. 318/809 cut-off events. For 112154/112235 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5719 event pairs, 15 based on Foata normal form. 1/807 useless extension candidates. Maximal degree in co-relation 14192. Up to 476 conditions per place. [2021-03-26 14:32:17,190 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 14:32:17,662 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:17,662 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:32:17,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 634 [2021-03-26 14:32:17,662 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 361 transitions, 9428 flow [2021-03-26 14:32:17,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:32:17,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:17,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:17,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:17,863 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:17,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:17,863 INFO L82 PathProgramCache]: Analyzing trace with hash -706301749, now seen corresponding path program 1 times [2021-03-26 14:32:17,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:17,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020532101] [2021-03-26 14:32:17,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:17,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:17,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:17,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:17,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:17,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:17,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020532101] [2021-03-26 14:32:17,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429746167] [2021-03-26 14:32:17,903 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 [2021-03-26 14:32:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:17,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 14:32:17,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:17,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:17,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:17,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:17,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:17,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:17,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,952 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:32:17,952 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:32:17,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:17,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:17,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:17,954 INFO L142 QuantifierPusher]: treesize reduction 53, result has 44.2 percent of original size [2021-03-26 14:32:17,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:32:17,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:32:17,977 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.5 percent of original size [2021-03-26 14:32:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:32:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:32:17,980 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-26 14:32:17,980 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:32:17,981 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,981 INFO L142 QuantifierPusher]: treesize reduction 91, result has 52.8 percent of original size [2021-03-26 14:32:17,982 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:32:17,982 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,983 INFO L142 QuantifierPusher]: treesize reduction 75, result has 45.3 percent of original size [2021-03-26 14:32:17,983 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:17,983 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,984 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-26 14:32:17,984 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:17,984 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:17,985 INFO L142 QuantifierPusher]: treesize reduction 20, result has 37.5 percent of original size [2021-03-26 14:32:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:17,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:17,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:17,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:17,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:18,006 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:18,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:18,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:18,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:18,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:18,008 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:18,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:18,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:18,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:18,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:32:18,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681611523] [2021-03-26 14:32:18,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:32:18,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:18,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:32:18,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:32:18,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:18,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 361 transitions, 9428 flow. Second operand has 8 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) [2021-03-26 14:32:18,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:18,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:18,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:18,471 INFO L129 PetriNetUnfolder]: 318/798 cut-off events. [2021-03-26 14:32:18,471 INFO L130 PetriNetUnfolder]: For 111662/111670 co-relation queries the response was YES. [2021-03-26 14:32:18,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15137 conditions, 798 events. 318/798 cut-off events. For 111662/111670 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5496 event pairs, 14 based on Foata normal form. 4/799 useless extension candidates. Maximal degree in co-relation 14858. Up to 634 conditions per place. [2021-03-26 14:32:18,489 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 335 selfloop transitions, 22 changer transitions 1/363 dead transitions. [2021-03-26 14:32:18,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 363 transitions, 10373 flow [2021-03-26 14:32:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:32:18,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:32:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-26 14:32:18,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1673076923076923 [2021-03-26 14:32:18,490 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-26 14:32:18,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-26 14:32:18,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:18,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-26 14:32:18,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 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) [2021-03-26 14:32:18,491 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) [2021-03-26 14:32:18,491 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) [2021-03-26 14:32:18,492 INFO L185 Difference]: Start difference. First operand has 395 places, 361 transitions, 9428 flow. Second operand 8 states and 174 transitions. [2021-03-26 14:32:18,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 363 transitions, 10373 flow [2021-03-26 14:32:19,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 363 transitions, 9664 flow, removed 332 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:19,226 INFO L241 Difference]: Finished difference. Result has 393 places, 357 transitions, 8669 flow [2021-03-26 14:32:19,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8625, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8669, PETRI_PLACES=393, PETRI_TRANSITIONS=357} [2021-03-26 14:32:19,226 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 377 predicate places. [2021-03-26 14:32:19,226 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:19,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 357 transitions, 8669 flow [2021-03-26 14:32:19,226 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 357 transitions, 8669 flow [2021-03-26 14:32:19,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 357 transitions, 8669 flow [2021-03-26 14:32:19,369 INFO L129 PetriNetUnfolder]: 315/794 cut-off events. [2021-03-26 14:32:19,369 INFO L130 PetriNetUnfolder]: For 107957/108038 co-relation queries the response was YES. [2021-03-26 14:32:19,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13853 conditions, 794 events. 315/794 cut-off events. For 107957/108038 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5536 event pairs, 14 based on Foata normal form. 1/792 useless extension candidates. Maximal degree in co-relation 13586. Up to 460 conditions per place. [2021-03-26 14:32:19,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 14:32:19,397 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:19,397 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:19,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-26 14:32:19,398 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 357 transitions, 8669 flow [2021-03-26 14:32:19,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:32:19,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:19,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:19,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:19,598 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:19,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:19,599 INFO L82 PathProgramCache]: Analyzing trace with hash -651697362, now seen corresponding path program 1 times [2021-03-26 14:32:19,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:19,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084879976] [2021-03-26 14:32:19,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:19,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:19,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:19,625 INFO L142 QuantifierPusher]: treesize reduction 592, result has 52.0 percent of original size [2021-03-26 14:32:19,627 INFO L147 QuantifierPusher]: treesize reduction 7, result has 98.9 percent of original size 634 [2021-03-26 14:32:19,750 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 30 [2021-03-26 14:32:19,756 INFO L142 QuantifierPusher]: treesize reduction 1145, result has 14.6 percent of original size [2021-03-26 14:32:19,757 INFO L147 QuantifierPusher]: treesize reduction 22, result has 88.7 percent of original size 173 [2021-03-26 14:32:19,872 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2021-03-26 14:32:19,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:19,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:19,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084879976] [2021-03-26 14:32:19,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:19,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 14:32:19,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127089813] [2021-03-26 14:32:19,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:19,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:19,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:19,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:19,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 130 [2021-03-26 14:32:19,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 357 transitions, 8669 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:19,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:19,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 130 [2021-03-26 14:32:19,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:20,211 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-03-26 14:32:20,639 INFO L129 PetriNetUnfolder]: 318/797 cut-off events. [2021-03-26 14:32:20,639 INFO L130 PetriNetUnfolder]: For 110423/110431 co-relation queries the response was YES. [2021-03-26 14:32:20,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14687 conditions, 797 events. 318/797 cut-off events. For 110423/110431 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5487 event pairs, 15 based on Foata normal form. 1/795 useless extension candidates. Maximal degree in co-relation 14411. Up to 678 conditions per place. [2021-03-26 14:32:20,651 INFO L132 encePairwiseOnDemand]: 121/130 looper letters, 343 selfloop transitions, 12 changer transitions 1/360 dead transitions. [2021-03-26 14:32:20,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 360 transitions, 9506 flow [2021-03-26 14:32:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:32:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:32:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2021-03-26 14:32:20,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17435897435897435 [2021-03-26 14:32:20,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 136 transitions. [2021-03-26 14:32:20,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 136 transitions. [2021-03-26 14:32:20,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:20,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 136 transitions. [2021-03-26 14:32:20,653 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) [2021-03-26 14:32:20,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:20,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:20,653 INFO L185 Difference]: Start difference. First operand has 393 places, 357 transitions, 8669 flow. Second operand 6 states and 136 transitions. [2021-03-26 14:32:20,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 360 transitions, 9506 flow [2021-03-26 14:32:21,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 360 transitions, 9362 flow, removed 41 selfloop flow, removed 8 redundant places. [2021-03-26 14:32:21,201 INFO L241 Difference]: Finished difference. Result has 391 places, 356 transitions, 8523 flow [2021-03-26 14:32:21,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8529, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8523, PETRI_PLACES=391, PETRI_TRANSITIONS=356} [2021-03-26 14:32:21,202 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 375 predicate places. [2021-03-26 14:32:21,202 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:21,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 391 places, 356 transitions, 8523 flow [2021-03-26 14:32:21,202 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 391 places, 356 transitions, 8523 flow [2021-03-26 14:32:21,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 356 transitions, 8523 flow [2021-03-26 14:32:21,341 INFO L129 PetriNetUnfolder]: 315/791 cut-off events. [2021-03-26 14:32:21,341 INFO L130 PetriNetUnfolder]: For 106410/106491 co-relation queries the response was YES. [2021-03-26 14:32:21,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13687 conditions, 791 events. 315/791 cut-off events. For 106410/106491 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5501 event pairs, 14 based on Foata normal form. 1/789 useless extension candidates. Maximal degree in co-relation 13424. Up to 460 conditions per place. [2021-03-26 14:32:21,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 14:32:21,369 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:21,369 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:21,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-26 14:32:21,369 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 356 transitions, 8523 flow [2021-03-26 14:32:21,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:21,369 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:21,369 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:21,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-26 14:32:21,369 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:21,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2134192162, now seen corresponding path program 1 times [2021-03-26 14:32:21,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:21,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314637226] [2021-03-26 14:32:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:21,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:21,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:21,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:21,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:21,394 INFO L142 QuantifierPusher]: treesize reduction 3912, result has 22.9 percent of original size [2021-03-26 14:32:21,396 INFO L147 QuantifierPusher]: treesize reduction 58, result has 95.0 percent of original size 1103 [2021-03-26 14:32:21,715 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 56 [2021-03-26 14:32:21,716 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-26 14:32:21,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:21,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:21,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:21,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:21,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:21,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314637226] [2021-03-26 14:32:21,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:21,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:21,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038186110] [2021-03-26 14:32:21,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:21,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:21,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:21,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:21,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:21,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 356 transitions, 8523 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:21,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:21,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:21,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:22,216 INFO L129 PetriNetUnfolder]: 317/793 cut-off events. [2021-03-26 14:32:22,216 INFO L130 PetriNetUnfolder]: For 108023/108031 co-relation queries the response was YES. [2021-03-26 14:32:22,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14488 conditions, 793 events. 317/793 cut-off events. For 108023/108031 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5424 event pairs, 14 based on Foata normal form. 1/791 useless extension candidates. Maximal degree in co-relation 14216. Up to 643 conditions per place. [2021-03-26 14:32:22,228 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 342 selfloop transitions, 13 changer transitions 1/361 dead transitions. [2021-03-26 14:32:22,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 361 transitions, 9610 flow [2021-03-26 14:32:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:32:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:32:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2021-03-26 14:32:22,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.191025641025641 [2021-03-26 14:32:22,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 149 transitions. [2021-03-26 14:32:22,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 149 transitions. [2021-03-26 14:32:22,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:22,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 149 transitions. [2021-03-26 14:32:22,230 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) [2021-03-26 14:32:22,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:22,230 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:22,230 INFO L185 Difference]: Start difference. First operand has 389 places, 356 transitions, 8523 flow. Second operand 6 states and 149 transitions. [2021-03-26 14:32:22,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 361 transitions, 9610 flow [2021-03-26 14:32:22,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 361 transitions, 9584 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:22,723 INFO L241 Difference]: Finished difference. Result has 389 places, 354 transitions, 8478 flow [2021-03-26 14:32:22,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8485, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8478, PETRI_PLACES=389, PETRI_TRANSITIONS=354} [2021-03-26 14:32:22,723 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 373 predicate places. [2021-03-26 14:32:22,723 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:22,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 354 transitions, 8478 flow [2021-03-26 14:32:22,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 354 transitions, 8478 flow [2021-03-26 14:32:22,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 354 transitions, 8478 flow [2021-03-26 14:32:22,866 INFO L129 PetriNetUnfolder]: 314/788 cut-off events. [2021-03-26 14:32:22,866 INFO L130 PetriNetUnfolder]: For 106372/106453 co-relation queries the response was YES. [2021-03-26 14:32:22,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13634 conditions, 788 events. 314/788 cut-off events. For 106372/106453 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5449 event pairs, 14 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 13372. Up to 460 conditions per place. [2021-03-26 14:32:22,879 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:22,901 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:22,902 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:22,902 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-26 14:32:22,902 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 354 transitions, 8478 flow [2021-03-26 14:32:22,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:22,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:22,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:22,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-03-26 14:32:22,902 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:22,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:22,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1516280154, now seen corresponding path program 2 times [2021-03-26 14:32:22,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:22,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952287579] [2021-03-26 14:32:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:22,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:22,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:22,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:22,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:22,921 INFO L142 QuantifierPusher]: treesize reduction 125, result has 40.8 percent of original size [2021-03-26 14:32:22,922 INFO L147 QuantifierPusher]: treesize reduction 39, result has 54.7 percent of original size 47 [2021-03-26 14:32:22,974 INFO L142 QuantifierPusher]: treesize reduction 125, result has 40.2 percent of original size [2021-03-26 14:32:22,975 INFO L147 QuantifierPusher]: treesize reduction 39, result has 53.6 percent of original size 45 [2021-03-26 14:32:23,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:23,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952287579] [2021-03-26 14:32:23,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44299733] [2021-03-26 14:32:23,036 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 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 [2021-03-26 14:32:23,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:32:23,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:23,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:32:23,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:23,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:23,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:23,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:32:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,107 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:32:23,108 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:32:23,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:23,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-03-26 14:32:23,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:32:23,112 INFO L142 QuantifierPusher]: treesize reduction 383, result has 12.8 percent of original size [2021-03-26 14:32:23,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:23,149 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-26 14:32:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:23,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:23,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:23,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:23,176 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-03-26 14:32:23,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-03-26 14:32:23,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:23,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-03-26 14:32:23,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-03-26 14:32:23,182 INFO L142 QuantifierPusher]: treesize reduction 733, result has 4.4 percent of original size [2021-03-26 14:32:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:23,188 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:23,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:23,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:23,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:32:23,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525328563] [2021-03-26 14:32:23,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:32:23,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:23,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:32:23,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:32:23,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:23,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 354 transitions, 8478 flow. Second operand has 8 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) [2021-03-26 14:32:23,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:23,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:23,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:23,611 INFO L129 PetriNetUnfolder]: 317/782 cut-off events. [2021-03-26 14:32:23,611 INFO L130 PetriNetUnfolder]: For 107867/107875 co-relation queries the response was YES. [2021-03-26 14:32:23,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14373 conditions, 782 events. 317/782 cut-off events. For 107867/107875 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5264 event pairs, 14 based on Foata normal form. 3/782 useless extension candidates. Maximal degree in co-relation 14102. Up to 629 conditions per place. [2021-03-26 14:32:23,622 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 334 selfloop transitions, 20 changer transitions 0/359 dead transitions. [2021-03-26 14:32:23,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 359 transitions, 9460 flow [2021-03-26 14:32:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:32:23,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:32:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2021-03-26 14:32:23,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17582417582417584 [2021-03-26 14:32:23,623 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 160 transitions. [2021-03-26 14:32:23,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 160 transitions. [2021-03-26 14:32:23,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:23,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 160 transitions. [2021-03-26 14:32:23,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 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) [2021-03-26 14:32:23,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:23,624 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:23,624 INFO L185 Difference]: Start difference. First operand has 388 places, 354 transitions, 8478 flow. Second operand 7 states and 160 transitions. [2021-03-26 14:32:23,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 359 transitions, 9460 flow [2021-03-26 14:32:24,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 359 transitions, 9433 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 14:32:24,141 INFO L241 Difference]: Finished difference. Result has 389 places, 354 transitions, 8507 flow [2021-03-26 14:32:24,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8396, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8507, PETRI_PLACES=389, PETRI_TRANSITIONS=354} [2021-03-26 14:32:24,141 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 373 predicate places. [2021-03-26 14:32:24,141 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:24,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 354 transitions, 8507 flow [2021-03-26 14:32:24,141 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 354 transitions, 8507 flow [2021-03-26 14:32:24,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 354 transitions, 8507 flow [2021-03-26 14:32:24,273 INFO L129 PetriNetUnfolder]: 314/778 cut-off events. [2021-03-26 14:32:24,273 INFO L130 PetriNetUnfolder]: For 106086/106167 co-relation queries the response was YES. [2021-03-26 14:32:24,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13589 conditions, 778 events. 314/778 cut-off events. For 106086/106167 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5345 event pairs, 13 based on Foata normal form. 1/776 useless extension candidates. Maximal degree in co-relation 13326. Up to 457 conditions per place. [2021-03-26 14:32:24,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:24,301 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:24,301 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:24,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-26 14:32:24,302 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 354 transitions, 8507 flow [2021-03-26 14:32:24,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:32:24,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:24,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:24,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable535 [2021-03-26 14:32:24,502 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:24,502 INFO L82 PathProgramCache]: Analyzing trace with hash 643835629, now seen corresponding path program 1 times [2021-03-26 14:32:24,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:24,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878534509] [2021-03-26 14:32:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:24,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,514 INFO L142 QuantifierPusher]: treesize reduction 41, result has 47.4 percent of original size [2021-03-26 14:32:24,514 INFO L147 QuantifierPusher]: treesize reduction 31, result has 16.2 percent of original size 6 [2021-03-26 14:32:24,525 INFO L142 QuantifierPusher]: treesize reduction 186, result has 35.6 percent of original size [2021-03-26 14:32:24,525 INFO L147 QuantifierPusher]: treesize reduction 35, result has 66.0 percent of original size 68 [2021-03-26 14:32:24,564 INFO L142 QuantifierPusher]: treesize reduction 95, result has 18.8 percent of original size [2021-03-26 14:32:24,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:24,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:24,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878534509] [2021-03-26 14:32:24,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285634516] [2021-03-26 14:32:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:24,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:24,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:24,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:24,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:24,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:24,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:24,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,634 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:24,635 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:24,635 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:24,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:24,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:24,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:24,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:24,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:24,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:24,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:32:24,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,652 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:24,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:24,653 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:24,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:24,677 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-03-26 14:32:24,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:24,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:32:24,680 INFO L142 QuantifierPusher]: treesize reduction 109, result has 45.5 percent of original size [2021-03-26 14:32:24,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:32:24,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:32:24,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-26 14:32:24,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:24,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:24,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:24,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:32:24,793 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 14:32:24,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:24,799 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:24,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:24,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:24,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:24,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:24,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:24,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592837774] [2021-03-26 14:32:24,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:24,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:24,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:24,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:24,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:24,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 354 transitions, 8507 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:24,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:24,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:24,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:25,193 INFO L129 PetriNetUnfolder]: 317/776 cut-off events. [2021-03-26 14:32:25,193 INFO L130 PetriNetUnfolder]: For 109823/109831 co-relation queries the response was YES. [2021-03-26 14:32:25,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14443 conditions, 776 events. 317/776 cut-off events. For 109823/109831 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5209 event pairs, 15 based on Foata normal form. 5/778 useless extension candidates. Maximal degree in co-relation 14171. Up to 613 conditions per place. [2021-03-26 14:32:25,204 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 309 selfloop transitions, 42 changer transitions 0/356 dead transitions. [2021-03-26 14:32:25,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 356 transitions, 9510 flow [2021-03-26 14:32:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:32:25,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:32:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-26 14:32:25,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16442307692307692 [2021-03-26 14:32:25,205 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-26 14:32:25,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-26 14:32:25,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:25,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-26 14:32:25,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 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) [2021-03-26 14:32:25,206 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) [2021-03-26 14:32:25,206 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) [2021-03-26 14:32:25,206 INFO L185 Difference]: Start difference. First operand has 389 places, 354 transitions, 8507 flow. Second operand 8 states and 171 transitions. [2021-03-26 14:32:25,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 356 transitions, 9510 flow [2021-03-26 14:32:25,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 356 transitions, 9470 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-26 14:32:25,700 INFO L241 Difference]: Finished difference. Result has 387 places, 351 transitions, 8623 flow [2021-03-26 14:32:25,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8377, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8623, PETRI_PLACES=387, PETRI_TRANSITIONS=351} [2021-03-26 14:32:25,700 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 371 predicate places. [2021-03-26 14:32:25,700 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:25,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 351 transitions, 8623 flow [2021-03-26 14:32:25,701 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 351 transitions, 8623 flow [2021-03-26 14:32:25,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 351 transitions, 8623 flow [2021-03-26 14:32:25,902 INFO L129 PetriNetUnfolder]: 314/771 cut-off events. [2021-03-26 14:32:25,902 INFO L130 PetriNetUnfolder]: For 105385/105466 co-relation queries the response was YES. [2021-03-26 14:32:25,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13608 conditions, 771 events. 314/771 cut-off events. For 105385/105466 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5262 event pairs, 13 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 13347. Up to 458 conditions per place. [2021-03-26 14:32:25,922 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:25,942 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:25,942 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:25,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 242 [2021-03-26 14:32:25,943 INFO L480 AbstractCegarLoop]: Abstraction has has 387 places, 351 transitions, 8623 flow [2021-03-26 14:32:25,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:25,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:25,943 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:26,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:26,148 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1548497147, now seen corresponding path program 1 times [2021-03-26 14:32:26,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:26,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430012437] [2021-03-26 14:32:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:26,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:26,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:26,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:26,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:26,184 INFO L142 QuantifierPusher]: treesize reduction 2211, result has 6.4 percent of original size [2021-03-26 14:32:26,185 INFO L147 QuantifierPusher]: treesize reduction 9, result has 94.1 percent of original size 143 [2021-03-26 14:32:26,255 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:32:26,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:32:26,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:26,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:26,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:26,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:26,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430012437] [2021-03-26 14:32:26,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:26,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:26,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705782036] [2021-03-26 14:32:26,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:26,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:26,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:26,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:26,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:26,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 351 transitions, 8623 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:26,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:26,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:26,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:26,715 INFO L129 PetriNetUnfolder]: 316/769 cut-off events. [2021-03-26 14:32:26,716 INFO L130 PetriNetUnfolder]: For 106956/106964 co-relation queries the response was YES. [2021-03-26 14:32:26,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14344 conditions, 769 events. 316/769 cut-off events. For 106956/106964 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5145 event pairs, 15 based on Foata normal form. 1/767 useless extension candidates. Maximal degree in co-relation 14074. Up to 642 conditions per place. [2021-03-26 14:32:26,726 INFO L132 encePairwiseOnDemand]: 123/130 looper letters, 335 selfloop transitions, 10 changer transitions 2/352 dead transitions. [2021-03-26 14:32:26,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 352 transitions, 9421 flow [2021-03-26 14:32:26,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:32:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:32:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-26 14:32:26,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18205128205128204 [2021-03-26 14:32:26,728 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-26 14:32:26,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-26 14:32:26,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:26,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-26 14:32:26,728 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) [2021-03-26 14:32:26,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:26,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:26,729 INFO L185 Difference]: Start difference. First operand has 387 places, 351 transitions, 8623 flow. Second operand 6 states and 142 transitions. [2021-03-26 14:32:26,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 352 transitions, 9421 flow [2021-03-26 14:32:27,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 352 transitions, 9269 flow, removed 38 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:27,220 INFO L241 Difference]: Finished difference. Result has 387 places, 348 transitions, 8443 flow [2021-03-26 14:32:27,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8468, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8443, PETRI_PLACES=387, PETRI_TRANSITIONS=348} [2021-03-26 14:32:27,221 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 371 predicate places. [2021-03-26 14:32:27,221 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:27,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 348 transitions, 8443 flow [2021-03-26 14:32:27,221 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 348 transitions, 8443 flow [2021-03-26 14:32:27,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 382 places, 348 transitions, 8443 flow [2021-03-26 14:32:27,360 INFO L129 PetriNetUnfolder]: 313/763 cut-off events. [2021-03-26 14:32:27,360 INFO L130 PetriNetUnfolder]: For 103925/104006 co-relation queries the response was YES. [2021-03-26 14:32:27,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13451 conditions, 763 events. 313/763 cut-off events. For 103925/104006 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5171 event pairs, 13 based on Foata normal form. 1/761 useless extension candidates. Maximal degree in co-relation 13190. Up to 455 conditions per place. [2021-03-26 14:32:27,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 14:32:27,389 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:27,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:27,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-26 14:32:27,390 INFO L480 AbstractCegarLoop]: Abstraction has has 382 places, 348 transitions, 8443 flow [2021-03-26 14:32:27,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:27,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:27,390 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:27,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-26 14:32:27,390 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:27,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2020200128, now seen corresponding path program 2 times [2021-03-26 14:32:27,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:27,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852184146] [2021-03-26 14:32:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:27,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:27,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:27,406 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:32:27,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:27,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:27,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:27,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:27,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:27,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:27,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852184146] [2021-03-26 14:32:27,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:27,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:27,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946157798] [2021-03-26 14:32:27,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:27,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:27,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:27,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:27,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:27,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 348 transitions, 8443 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:27,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:27,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:27,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:27,773 INFO L129 PetriNetUnfolder]: 315/767 cut-off events. [2021-03-26 14:32:27,773 INFO L130 PetriNetUnfolder]: For 104591/104599 co-relation queries the response was YES. [2021-03-26 14:32:27,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14240 conditions, 767 events. 315/767 cut-off events. For 104591/104599 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5104 event pairs, 14 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 13970. Up to 613 conditions per place. [2021-03-26 14:32:27,784 INFO L132 encePairwiseOnDemand]: 119/130 looper letters, 314 selfloop transitions, 32 changer transitions 1/352 dead transitions. [2021-03-26 14:32:27,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 352 transitions, 9423 flow [2021-03-26 14:32:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:32:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:32:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-26 14:32:27,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18205128205128204 [2021-03-26 14:32:27,786 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-26 14:32:27,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-26 14:32:27,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:27,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-26 14:32:27,786 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) [2021-03-26 14:32:27,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:27,786 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:27,786 INFO L185 Difference]: Start difference. First operand has 382 places, 348 transitions, 8443 flow. Second operand 6 states and 142 transitions. [2021-03-26 14:32:27,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 352 transitions, 9423 flow [2021-03-26 14:32:28,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 352 transitions, 9402 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 14:32:28,284 INFO L241 Difference]: Finished difference. Result has 385 places, 347 transitions, 8477 flow [2021-03-26 14:32:28,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8407, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8477, PETRI_PLACES=385, PETRI_TRANSITIONS=347} [2021-03-26 14:32:28,284 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 369 predicate places. [2021-03-26 14:32:28,284 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:28,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 347 transitions, 8477 flow [2021-03-26 14:32:28,284 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 347 transitions, 8477 flow [2021-03-26 14:32:28,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 347 transitions, 8477 flow [2021-03-26 14:32:28,413 INFO L129 PetriNetUnfolder]: 312/761 cut-off events. [2021-03-26 14:32:28,413 INFO L130 PetriNetUnfolder]: For 101403/101484 co-relation queries the response was YES. [2021-03-26 14:32:28,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13377 conditions, 761 events. 312/761 cut-off events. For 101403/101484 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5115 event pairs, 13 based on Foata normal form. 1/759 useless extension candidates. Maximal degree in co-relation 13118. Up to 455 conditions per place. [2021-03-26 14:32:28,425 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 14:32:28,439 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:28,439 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:28,439 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-03-26 14:32:28,439 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 347 transitions, 8477 flow [2021-03-26 14:32:28,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:28,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:28,439 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:28,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-26 14:32:28,440 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:28,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:28,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1912540889, now seen corresponding path program 1 times [2021-03-26 14:32:28,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:28,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829837874] [2021-03-26 14:32:28,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:28,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:28,466 INFO L142 QuantifierPusher]: treesize reduction 202, result has 32.2 percent of original size [2021-03-26 14:32:28,467 INFO L147 QuantifierPusher]: treesize reduction 28, result has 70.8 percent of original size 68 [2021-03-26 14:32:28,504 INFO L142 QuantifierPusher]: treesize reduction 67, result has 25.6 percent of original size [2021-03-26 14:32:28,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:28,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:28,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:28,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:28,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829837874] [2021-03-26 14:32:28,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575914234] [2021-03-26 14:32:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:28,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 14:32:28,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:28,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:28,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:32:28,582 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 14:32:28,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:28,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:32:28,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 14:32:28,624 INFO L142 QuantifierPusher]: treesize reduction 160, result has 49.5 percent of original size [2021-03-26 14:32:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:32:28,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:32:28,725 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.7 percent of original size [2021-03-26 14:32:28,726 INFO L147 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size 53 [2021-03-26 14:32:28,727 INFO L142 QuantifierPusher]: treesize reduction 40, result has 57.4 percent of original size [2021-03-26 14:32:28,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:32:28,728 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-03-26 14:32:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:32:28,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:32:28,763 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.2 percent of original size [2021-03-26 14:32:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 14:32:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:28,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 14:32:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:32:28,766 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-26 14:32:28,766 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:28,767 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:28,768 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 14:32:28,768 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:28,768 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:28,769 INFO L142 QuantifierPusher]: treesize reduction 84, result has 44.0 percent of original size [2021-03-26 14:32:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:28,792 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:28,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:28,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:28,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:28,795 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:28,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:28,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:28,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 14:32:28,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497973365] [2021-03-26 14:32:28,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:32:28,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:28,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:32:28,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:32:28,800 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:28,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 347 transitions, 8477 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:32:28,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:28,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:28,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:29,342 INFO L129 PetriNetUnfolder]: 319/777 cut-off events. [2021-03-26 14:32:29,342 INFO L130 PetriNetUnfolder]: For 107636/107644 co-relation queries the response was YES. [2021-03-26 14:32:29,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14569 conditions, 777 events. 319/777 cut-off events. For 107636/107644 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5195 event pairs, 14 based on Foata normal form. 4/778 useless extension candidates. Maximal degree in co-relation 14301. Up to 607 conditions per place. [2021-03-26 14:32:29,354 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 310 selfloop transitions, 44 changer transitions 0/359 dead transitions. [2021-03-26 14:32:29,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 359 transitions, 10028 flow [2021-03-26 14:32:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:32:29,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:32:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 201 transitions. [2021-03-26 14:32:29,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15461538461538463 [2021-03-26 14:32:29,355 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 201 transitions. [2021-03-26 14:32:29,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 201 transitions. [2021-03-26 14:32:29,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:29,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 201 transitions. [2021-03-26 14:32:29,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.1) internal successors, (201), 10 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:29,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:29,356 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:29,356 INFO L185 Difference]: Start difference. First operand has 384 places, 347 transitions, 8477 flow. Second operand 10 states and 201 transitions. [2021-03-26 14:32:29,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 359 transitions, 10028 flow [2021-03-26 14:32:29,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 359 transitions, 9940 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:29,864 INFO L241 Difference]: Finished difference. Result has 390 places, 349 transitions, 8698 flow [2021-03-26 14:32:29,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8336, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8698, PETRI_PLACES=390, PETRI_TRANSITIONS=349} [2021-03-26 14:32:29,864 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 374 predicate places. [2021-03-26 14:32:29,864 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:29,864 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 349 transitions, 8698 flow [2021-03-26 14:32:29,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 349 transitions, 8698 flow [2021-03-26 14:32:29,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 390 places, 349 transitions, 8698 flow [2021-03-26 14:32:29,999 INFO L129 PetriNetUnfolder]: 316/774 cut-off events. [2021-03-26 14:32:29,999 INFO L130 PetriNetUnfolder]: For 106170/106251 co-relation queries the response was YES. [2021-03-26 14:32:30,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13802 conditions, 774 events. 316/774 cut-off events. For 106170/106251 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5223 event pairs, 14 based on Foata normal form. 1/772 useless extension candidates. Maximal degree in co-relation 13541. Up to 467 conditions per place. [2021-03-26 14:32:30,012 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:32:30,027 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:30,027 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:30,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-26 14:32:30,027 INFO L480 AbstractCegarLoop]: Abstraction has has 390 places, 349 transitions, 8698 flow [2021-03-26 14:32:30,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:32:30,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:30,027 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:30,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable541 [2021-03-26 14:32:30,228 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1515628496, now seen corresponding path program 2 times [2021-03-26 14:32:30,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:30,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518243738] [2021-03-26 14:32:30,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:30,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:30,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:32:30,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:30,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:30,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518243738] [2021-03-26 14:32:30,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605287269] [2021-03-26 14:32:30,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:30,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:32:30,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:30,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:30,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:30,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:30,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:30,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:30,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:30,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,334 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:30,335 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:30,335 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:30,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:30,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:30,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:30,349 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:32:30,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:30,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:30,351 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:32:30,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:30,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:30,369 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 14:32:30,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:30,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:32:30,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:30,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:32:30,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:32:30,376 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 14:32:30,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:30,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:30,378 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:30,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:30,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:30,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:30,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:32:30,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468297826] [2021-03-26 14:32:30,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:32:30,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:30,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:32:30,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:32:30,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:30,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 349 transitions, 8698 flow. Second operand has 8 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) [2021-03-26 14:32:30,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:30,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:30,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:30,880 INFO L129 PetriNetUnfolder]: 323/787 cut-off events. [2021-03-26 14:32:30,880 INFO L130 PetriNetUnfolder]: For 110084/110092 co-relation queries the response was YES. [2021-03-26 14:32:30,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14859 conditions, 787 events. 323/787 cut-off events. For 110084/110092 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5275 event pairs, 12 based on Foata normal form. 4/788 useless extension candidates. Maximal degree in co-relation 14589. Up to 478 conditions per place. [2021-03-26 14:32:30,891 INFO L132 encePairwiseOnDemand]: 105/130 looper letters, 283 selfloop transitions, 98 changer transitions 0/386 dead transitions. [2021-03-26 14:32:30,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 386 transitions, 11281 flow [2021-03-26 14:32:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:32:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:32:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 181 transitions. [2021-03-26 14:32:30,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17403846153846153 [2021-03-26 14:32:30,892 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 181 transitions. [2021-03-26 14:32:30,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 181 transitions. [2021-03-26 14:32:30,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:30,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 181 transitions. [2021-03-26 14:32:30,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:30,893 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) [2021-03-26 14:32:30,893 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) [2021-03-26 14:32:30,894 INFO L185 Difference]: Start difference. First operand has 390 places, 349 transitions, 8698 flow. Second operand 8 states and 181 transitions. [2021-03-26 14:32:30,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 386 transitions, 11281 flow [2021-03-26 14:32:31,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 386 transitions, 11145 flow, removed 32 selfloop flow, removed 5 redundant places. [2021-03-26 14:32:31,445 INFO L241 Difference]: Finished difference. Result has 393 places, 351 transitions, 8856 flow [2021-03-26 14:32:31,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8566, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8856, PETRI_PLACES=393, PETRI_TRANSITIONS=351} [2021-03-26 14:32:31,445 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 377 predicate places. [2021-03-26 14:32:31,445 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:31,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 351 transitions, 8856 flow [2021-03-26 14:32:31,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 351 transitions, 8856 flow [2021-03-26 14:32:31,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 351 transitions, 8856 flow [2021-03-26 14:32:31,584 INFO L129 PetriNetUnfolder]: 320/782 cut-off events. [2021-03-26 14:32:31,585 INFO L130 PetriNetUnfolder]: For 107662/107702 co-relation queries the response was YES. [2021-03-26 14:32:31,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14094 conditions, 782 events. 320/782 cut-off events. For 107662/107702 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5290 event pairs, 13 based on Foata normal form. 1/780 useless extension candidates. Maximal degree in co-relation 13867. Up to 475 conditions per place. [2021-03-26 14:32:31,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:32:31,613 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:31,613 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:31,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-26 14:32:31,613 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 351 transitions, 8856 flow [2021-03-26 14:32:31,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:32:31,613 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:31,613 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:31,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable544 [2021-03-26 14:32:31,814 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:31,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash 471649133, now seen corresponding path program 1 times [2021-03-26 14:32:31,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:31,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329279412] [2021-03-26 14:32:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:31,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:32:31,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:31,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:31,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:31,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:31,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329279412] [2021-03-26 14:32:31,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098807230] [2021-03-26 14:32:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:31,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:31,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:31,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:31,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:31,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:31,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:31,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:31,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,905 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:31,905 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:31,905 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:31,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:31,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:31,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:31,920 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 14:32:31,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:31,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:32:31,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:32:31,923 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-26 14:32:31,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:31,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:31,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:32,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:32:32,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 14:32:32,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:32:32,010 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.9 percent of original size [2021-03-26 14:32:32,010 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:32:32,010 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,016 INFO L142 QuantifierPusher]: treesize reduction 68, result has 58.8 percent of original size [2021-03-26 14:32:32,018 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:32,019 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,019 INFO L142 QuantifierPusher]: treesize reduction 51, result has 52.3 percent of original size [2021-03-26 14:32:32,021 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:32,022 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,022 INFO L142 QuantifierPusher]: treesize reduction 32, result has 41.8 percent of original size [2021-03-26 14:32:32,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:32,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:32,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:32:32,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:32:32,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:32:32,058 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 14:32:32,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:32,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:32,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:32,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:32,061 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:32,061 INFO L142 QuantifierPusher]: treesize reduction 31, result has 22.5 percent of original size [2021-03-26 14:32:32,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:32,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:32,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:32,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:32,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:32,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:32,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:32,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907608286] [2021-03-26 14:32:32,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:32,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:32,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:32,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:32,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:32,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 351 transitions, 8856 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:32,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:32,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:32,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:32,672 INFO L129 PetriNetUnfolder]: 322/788 cut-off events. [2021-03-26 14:32:32,672 INFO L130 PetriNetUnfolder]: For 110535/110543 co-relation queries the response was YES. [2021-03-26 14:32:32,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14941 conditions, 788 events. 322/788 cut-off events. For 110535/110543 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5304 event pairs, 15 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 14670. Up to 527 conditions per place. [2021-03-26 14:32:32,683 INFO L132 encePairwiseOnDemand]: 111/130 looper letters, 269 selfloop transitions, 94 changer transitions 2/370 dead transitions. [2021-03-26 14:32:32,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 370 transitions, 10389 flow [2021-03-26 14:32:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:32:32,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:32:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 189 transitions. [2021-03-26 14:32:32,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16153846153846155 [2021-03-26 14:32:32,685 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 189 transitions. [2021-03-26 14:32:32,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 189 transitions. [2021-03-26 14:32:32,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:32,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 189 transitions. [2021-03-26 14:32:32,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.0) internal successors, (189), 9 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:32,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:32,686 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:32,686 INFO L185 Difference]: Start difference. First operand has 393 places, 351 transitions, 8856 flow. Second operand 9 states and 189 transitions. [2021-03-26 14:32:32,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 370 transitions, 10389 flow [2021-03-26 14:32:33,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 370 transitions, 10269 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-03-26 14:32:33,195 INFO L241 Difference]: Finished difference. Result has 395 places, 349 transitions, 8891 flow [2021-03-26 14:32:33,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8714, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8891, PETRI_PLACES=395, PETRI_TRANSITIONS=349} [2021-03-26 14:32:33,196 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 379 predicate places. [2021-03-26 14:32:33,196 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:33,196 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 349 transitions, 8891 flow [2021-03-26 14:32:33,196 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 349 transitions, 8891 flow [2021-03-26 14:32:33,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 349 transitions, 8891 flow [2021-03-26 14:32:33,335 INFO L129 PetriNetUnfolder]: 319/784 cut-off events. [2021-03-26 14:32:33,335 INFO L130 PetriNetUnfolder]: For 108368/108408 co-relation queries the response was YES. [2021-03-26 14:32:33,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14175 conditions, 784 events. 319/784 cut-off events. For 108368/108408 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5329 event pairs, 17 based on Foata normal form. 1/782 useless extension candidates. Maximal degree in co-relation 13915. Up to 477 conditions per place. [2021-03-26 14:32:33,348 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:32:33,362 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:33,362 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:33,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-26 14:32:33,362 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 349 transitions, 8891 flow [2021-03-26 14:32:33,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:33,363 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:33,363 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:33,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable546 [2021-03-26 14:32:33,563 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:33,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:33,563 INFO L82 PathProgramCache]: Analyzing trace with hash 197363396, now seen corresponding path program 3 times [2021-03-26 14:32:33,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:33,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004559238] [2021-03-26 14:32:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:33,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:33,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:32:33,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:33,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:33,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004559238] [2021-03-26 14:32:33,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867266584] [2021-03-26 14:32:33,599 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 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 [2021-03-26 14:32:33,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 14:32:33,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:33,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:33,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,651 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:33,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:33,652 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:33,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:33,666 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 14:32:33,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:33,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:33,668 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 14:32:33,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:33,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:32:33,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:33,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:33,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 14:32:33,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:32:33,689 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-26 14:32:33,689 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 14:32:33,690 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:33,690 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-26 14:32:33,691 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:33,691 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:33,692 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-26 14:32:33,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:33,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:33,713 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:33,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:33,717 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:33,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:33,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:33,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:33,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:33,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281993499] [2021-03-26 14:32:33,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:33,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:33,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:33,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:33,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-26 14:32:33,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 349 transitions, 8891 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:33,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:33,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-26 14:32:33,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:34,242 INFO L129 PetriNetUnfolder]: 324/794 cut-off events. [2021-03-26 14:32:34,242 INFO L130 PetriNetUnfolder]: For 111062/111070 co-relation queries the response was YES. [2021-03-26 14:32:34,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15113 conditions, 794 events. 324/794 cut-off events. For 111062/111070 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5328 event pairs, 12 based on Foata normal form. 2/793 useless extension candidates. Maximal degree in co-relation 14844. Up to 484 conditions per place. [2021-03-26 14:32:34,254 INFO L132 encePairwiseOnDemand]: 106/130 looper letters, 278 selfloop transitions, 100 changer transitions 0/383 dead transitions. [2021-03-26 14:32:34,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 383 transitions, 11364 flow [2021-03-26 14:32:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:32:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:32:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 194 transitions. [2021-03-26 14:32:34,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1658119658119658 [2021-03-26 14:32:34,255 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 194 transitions. [2021-03-26 14:32:34,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 194 transitions. [2021-03-26 14:32:34,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:34,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 194 transitions. [2021-03-26 14:32:34,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.555555555555557) internal successors, (194), 9 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:34,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:34,256 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:34,256 INFO L185 Difference]: Start difference. First operand has 393 places, 349 transitions, 8891 flow. Second operand 9 states and 194 transitions. [2021-03-26 14:32:34,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 383 transitions, 11364 flow [2021-03-26 14:32:34,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 383 transitions, 11089 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-26 14:32:34,791 INFO L241 Difference]: Finished difference. Result has 396 places, 351 transitions, 8945 flow [2021-03-26 14:32:34,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8620, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8945, PETRI_PLACES=396, PETRI_TRANSITIONS=351} [2021-03-26 14:32:34,792 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 380 predicate places. [2021-03-26 14:32:34,792 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:34,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 351 transitions, 8945 flow [2021-03-26 14:32:34,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 351 transitions, 8945 flow [2021-03-26 14:32:34,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 351 transitions, 8945 flow [2021-03-26 14:32:34,932 INFO L129 PetriNetUnfolder]: 321/789 cut-off events. [2021-03-26 14:32:34,932 INFO L130 PetriNetUnfolder]: For 108385/108466 co-relation queries the response was YES. [2021-03-26 14:32:34,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14291 conditions, 789 events. 321/789 cut-off events. For 108385/108466 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5347 event pairs, 15 based on Foata normal form. 1/787 useless extension candidates. Maximal degree in co-relation 14030. Up to 481 conditions per place. [2021-03-26 14:32:34,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 14:32:34,960 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:34,960 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:34,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-26 14:32:34,960 INFO L480 AbstractCegarLoop]: Abstraction has has 396 places, 351 transitions, 8945 flow [2021-03-26 14:32:34,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 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) [2021-03-26 14:32:34,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:34,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:35,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:35,161 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2134467397, now seen corresponding path program 1 times [2021-03-26 14:32:35,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:35,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627321055] [2021-03-26 14:32:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:35,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,188 INFO L142 QuantifierPusher]: treesize reduction 5983, result has 3.7 percent of original size [2021-03-26 14:32:35,189 INFO L147 QuantifierPusher]: treesize reduction 16, result has 93.1 percent of original size 216 [2021-03-26 14:32:35,233 INFO L142 QuantifierPusher]: treesize reduction 6971, result has 12.1 percent of original size [2021-03-26 14:32:35,237 INFO L147 QuantifierPusher]: treesize reduction 39, result has 95.9 percent of original size 917 [2021-03-26 14:32:35,757 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 64 [2021-03-26 14:32:35,759 INFO L142 QuantifierPusher]: treesize reduction 208, result has 20.0 percent of original size [2021-03-26 14:32:35,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:32:35,820 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size [2021-03-26 14:32:35,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:32:35,857 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:35,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:35,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:35,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627321055] [2021-03-26 14:32:35,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834402607] [2021-03-26 14:32:35,882 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 [2021-03-26 14:32:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:35,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:32:35,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:35,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:35,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:35,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,935 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:35,936 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,936 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:35,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:35,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:35,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:32:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:32:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:32:35,959 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.4 percent of original size [2021-03-26 14:32:35,959 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:35,960 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,960 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:35,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:35,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:32:35,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:32:35,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.1 percent of original size [2021-03-26 14:32:35,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:32:35,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-03-26 14:32:35,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:35,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:35,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:32:35,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 742 [2021-03-26 14:32:36,016 INFO L142 QuantifierPusher]: treesize reduction 42936, result has 0.4 percent of original size [2021-03-26 14:32:36,017 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:32:36,018 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-26 14:32:36,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 14:32:36,146 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-03-26 14:32:36,147 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-26 14:32:36,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:36,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 14:32:36,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 14:32:36,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-26 14:32:36,152 INFO L142 QuantifierPusher]: treesize reduction 107, result has 65.1 percent of original size [2021-03-26 14:32:36,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,154 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:36,154 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:32:36,155 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,156 INFO L142 QuantifierPusher]: treesize reduction 151, result has 57.5 percent of original size [2021-03-26 14:32:36,156 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:32:36,157 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,158 INFO L142 QuantifierPusher]: treesize reduction 149, result has 47.5 percent of original size [2021-03-26 14:32:36,158 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:32:36,158 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,159 INFO L142 QuantifierPusher]: treesize reduction 129, result has 46.9 percent of original size [2021-03-26 14:32:36,159 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:32:36,160 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,161 INFO L142 QuantifierPusher]: treesize reduction 72, result has 61.5 percent of original size [2021-03-26 14:32:36,161 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:32:36,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,162 INFO L142 QuantifierPusher]: treesize reduction 82, result has 35.4 percent of original size [2021-03-26 14:32:36,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:36,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:36,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:36,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:36,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:32:36,199 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 14:32:36,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:36,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:32:36,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:32:36,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:32:36,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,205 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:32:36,205 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:36,205 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,216 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:32:36,217 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:36,217 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,218 INFO L147 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size 37 [2021-03-26 14:32:36,218 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:36,219 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,220 INFO L142 QuantifierPusher]: treesize reduction 98, result has 22.2 percent of original size [2021-03-26 14:32:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:36,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:36,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:36,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:32:36,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:32:36,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:36,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:36,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:36,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:36,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952166944] [2021-03-26 14:32:36,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:36,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:36,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:36,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:36,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 130 [2021-03-26 14:32:36,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 351 transitions, 8945 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:36,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:36,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 130 [2021-03-26 14:32:36,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:36,819 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 48 [2021-03-26 14:32:37,453 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-03-26 14:32:37,759 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-26 14:32:37,818 INFO L129 PetriNetUnfolder]: 332/820 cut-off events. [2021-03-26 14:32:37,819 INFO L130 PetriNetUnfolder]: For 115549/115557 co-relation queries the response was YES. [2021-03-26 14:32:37,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15850 conditions, 820 events. 332/820 cut-off events. For 115549/115557 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5593 event pairs, 16 based on Foata normal form. 5/822 useless extension candidates. Maximal degree in co-relation 15580. Up to 670 conditions per place. [2021-03-26 14:32:37,831 INFO L132 encePairwiseOnDemand]: 117/130 looper letters, 322 selfloop transitions, 41 changer transitions 6/373 dead transitions. [2021-03-26 14:32:37,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 373 transitions, 10973 flow [2021-03-26 14:32:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 14:32:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 14:32:37,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 210 transitions. [2021-03-26 14:32:37,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1346153846153846 [2021-03-26 14:32:37,832 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 210 transitions. [2021-03-26 14:32:37,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 210 transitions. [2021-03-26 14:32:37,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:37,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 210 transitions. [2021-03-26 14:32:37,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:37,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:37,834 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:37,834 INFO L185 Difference]: Start difference. First operand has 396 places, 351 transitions, 8945 flow. Second operand 12 states and 210 transitions. [2021-03-26 14:32:37,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 373 transitions, 10973 flow [2021-03-26 14:32:38,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 373 transitions, 10750 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-03-26 14:32:38,453 INFO L241 Difference]: Finished difference. Result has 408 places, 362 transitions, 9510 flow [2021-03-26 14:32:38,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8722, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9510, PETRI_PLACES=408, PETRI_TRANSITIONS=362} [2021-03-26 14:32:38,454 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 392 predicate places. [2021-03-26 14:32:38,454 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:38,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 408 places, 362 transitions, 9510 flow [2021-03-26 14:32:38,454 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 408 places, 362 transitions, 9510 flow [2021-03-26 14:32:38,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 362 transitions, 9510 flow [2021-03-26 14:32:38,605 INFO L129 PetriNetUnfolder]: 327/811 cut-off events. [2021-03-26 14:32:38,605 INFO L130 PetriNetUnfolder]: For 121997/122080 co-relation queries the response was YES. [2021-03-26 14:32:38,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15232 conditions, 811 events. 327/811 cut-off events. For 121997/122080 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5550 event pairs, 15 based on Foata normal form. 1/809 useless extension candidates. Maximal degree in co-relation 14959. Up to 497 conditions per place. [2021-03-26 14:32:38,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 14:32:39,210 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:39,211 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:32:39,211 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 757 [2021-03-26 14:32:39,211 INFO L480 AbstractCegarLoop]: Abstraction has has 406 places, 362 transitions, 9567 flow [2021-03-26 14:32:39,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:39,211 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:39,211 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:39,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable556 [2021-03-26 14:32:39,412 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1646065389, now seen corresponding path program 2 times [2021-03-26 14:32:39,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:39,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282503893] [2021-03-26 14:32:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:39,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:39,436 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size [2021-03-26 14:32:39,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:39,461 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-26 14:32:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:39,485 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:32:39,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:39,506 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:39,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:39,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282503893] [2021-03-26 14:32:39,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242674790] [2021-03-26 14:32:39,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:39,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:32:39,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:39,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-26 14:32:39,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:39,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:39,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:39,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:39,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:39,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,593 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:39,593 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,594 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:32:39,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-26 14:32:39,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:32:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 866 [2021-03-26 14:32:39,625 INFO L142 QuantifierPusher]: treesize reduction 13462, result has 1.6 percent of original size [2021-03-26 14:32:39,627 INFO L147 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size 160 [2021-03-26 14:32:39,628 INFO L142 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size [2021-03-26 14:32:39,628 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-26 14:32:39,820 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-03-26 14:32:39,821 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.9 percent of original size [2021-03-26 14:32:39,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-26 14:32:39,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:39,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-26 14:32:39,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,825 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:39,825 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,825 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:32:39,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:32:39,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:32:39,896 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.2 percent of original size [2021-03-26 14:32:39,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:39,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-03-26 14:32:39,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-03-26 14:32:39,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-03-26 14:32:39,902 INFO L142 QuantifierPusher]: treesize reduction 46, result has 84.1 percent of original size [2021-03-26 14:32:39,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,904 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:39,904 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:32:39,905 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,906 INFO L142 QuantifierPusher]: treesize reduction 232, result has 46.7 percent of original size [2021-03-26 14:32:39,906 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-26 14:32:39,907 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,908 INFO L142 QuantifierPusher]: treesize reduction 98, result has 64.7 percent of original size [2021-03-26 14:32:39,908 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:32:39,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,909 INFO L142 QuantifierPusher]: treesize reduction 124, result has 45.1 percent of original size [2021-03-26 14:32:39,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:32:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:39,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:32:39,987 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:32:39,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:39,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:32:39,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:39,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:39,993 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:32:39,993 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:39,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,014 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:32:40,015 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:40,016 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:40,016 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 14:32:40,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:40,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:40,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:40,046 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:32:40,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:40,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:40,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:40,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:40,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:40,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:40,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:40,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:40,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:40,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,051 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:32:40,051 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:40,051 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,052 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:32:40,052 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:32:40,052 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:40,053 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,053 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:32:40,054 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:32:40,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:40,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:40,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:40,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989678145] [2021-03-26 14:32:40,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:40,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:40,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:40,080 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 133 [2021-03-26 14:32:40,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 362 transitions, 9567 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:40,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:40,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 133 [2021-03-26 14:32:40,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:40,297 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-26 14:32:40,744 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-03-26 14:32:40,891 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-26 14:32:41,772 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-03-26 14:32:41,849 INFO L129 PetriNetUnfolder]: 338/856 cut-off events. [2021-03-26 14:32:41,849 INFO L130 PetriNetUnfolder]: For 134351/134359 co-relation queries the response was YES. [2021-03-26 14:32:41,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17126 conditions, 856 events. 338/856 cut-off events. For 134351/134359 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5983 event pairs, 17 based on Foata normal form. 5/858 useless extension candidates. Maximal degree in co-relation 16844. Up to 668 conditions per place. [2021-03-26 14:32:41,862 INFO L132 encePairwiseOnDemand]: 115/133 looper letters, 326 selfloop transitions, 56 changer transitions 5/391 dead transitions. [2021-03-26 14:32:41,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 391 transitions, 11985 flow [2021-03-26 14:32:41,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 14:32:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 14:32:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 274 transitions. [2021-03-26 14:32:41,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12118531623175587 [2021-03-26 14:32:41,864 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 274 transitions. [2021-03-26 14:32:41,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 274 transitions. [2021-03-26 14:32:41,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:41,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 274 transitions. [2021-03-26 14:32:41,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.11764705882353) internal successors, (274), 17 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:41,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 133.0) internal successors, (2394), 18 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:41,866 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 133.0) internal successors, (2394), 18 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:41,866 INFO L185 Difference]: Start difference. First operand has 406 places, 362 transitions, 9567 flow. Second operand 17 states and 274 transitions. [2021-03-26 14:32:41,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 391 transitions, 11985 flow [2021-03-26 14:32:42,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 391 transitions, 11364 flow, removed 294 selfloop flow, removed 3 redundant places. [2021-03-26 14:32:42,537 INFO L241 Difference]: Finished difference. Result has 426 places, 373 transitions, 9846 flow [2021-03-26 14:32:42,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=8968, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9846, PETRI_PLACES=426, PETRI_TRANSITIONS=373} [2021-03-26 14:32:42,537 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 410 predicate places. [2021-03-26 14:32:42,537 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:42,537 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 373 transitions, 9846 flow [2021-03-26 14:32:42,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 373 transitions, 9846 flow [2021-03-26 14:32:42,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 373 transitions, 9846 flow [2021-03-26 14:32:42,693 INFO L129 PetriNetUnfolder]: 334/840 cut-off events. [2021-03-26 14:32:42,693 INFO L130 PetriNetUnfolder]: For 139111/139195 co-relation queries the response was YES. [2021-03-26 14:32:42,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16146 conditions, 840 events. 334/840 cut-off events. For 139111/139195 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5893 event pairs, 14 based on Foata normal form. 1/838 useless extension candidates. Maximal degree in co-relation 15863. Up to 508 conditions per place. [2021-03-26 14:32:42,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 14:32:43,128 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-26 14:32:43,279 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:43,279 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:32:43,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 742 [2021-03-26 14:32:43,279 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 373 transitions, 9913 flow [2021-03-26 14:32:43,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:43,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:43,279 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:43,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:43,480 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:43,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1972370758, now seen corresponding path program 2 times [2021-03-26 14:32:43,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:43,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600348624] [2021-03-26 14:32:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:43,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,496 INFO L142 QuantifierPusher]: treesize reduction 7, result has 46.2 percent of original size [2021-03-26 14:32:43,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:43,501 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 14:32:43,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:43,507 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size [2021-03-26 14:32:43,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:43,566 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-26 14:32:43,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:43,601 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-26 14:32:43,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:32:43,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:43,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600348624] [2021-03-26 14:32:43,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710994305] [2021-03-26 14:32:43,631 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 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 [2021-03-26 14:32:43,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:32:43,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:32:43,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-26 14:32:43,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:43,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:43,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:43,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:43,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:43,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,696 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:43,697 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,697 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:43,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,716 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 14:32:43,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:43,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:43,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,719 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:43,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,720 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:32:43,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:43,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:32:43,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 14:32:43,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 14:32:43,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 14:32:43,746 INFO L142 QuantifierPusher]: treesize reduction 10728, result has 1.4 percent of original size [2021-03-26 14:32:43,747 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-26 14:32:43,748 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-26 14:32:43,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 14:32:43,816 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.4 percent of original size [2021-03-26 14:32:43,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:43,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-03-26 14:32:43,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-03-26 14:32:43,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-03-26 14:32:43,823 INFO L142 QuantifierPusher]: treesize reduction 46, result has 84.5 percent of original size [2021-03-26 14:32:43,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,825 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:43,826 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:32:43,826 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,828 INFO L142 QuantifierPusher]: treesize reduction 274, result has 39.0 percent of original size [2021-03-26 14:32:43,828 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:32:43,829 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,830 INFO L142 QuantifierPusher]: treesize reduction 161, result has 33.2 percent of original size [2021-03-26 14:32:43,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:43,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:32:43,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:32:43,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:32:43,881 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 14:32:43,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:43,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:43,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:43,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:43,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:32:43,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,886 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 14:32:43,886 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:32:43,887 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,888 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 14:32:43,888 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:43,889 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,889 INFO L142 QuantifierPusher]: treesize reduction 115, result has 25.3 percent of original size [2021-03-26 14:32:43,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:43,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:43,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:43,917 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 14:32:43,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:32:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,922 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 14:32:43,922 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:43,922 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,923 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 14:32:43,923 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-26 14:32:43,923 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:43,923 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,924 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:32:43,924 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:32:43,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:43,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:43,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:43,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:43,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206482337] [2021-03-26 14:32:43,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:43,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:43,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:43,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:43,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-26 14:32:43,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 373 transitions, 9913 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:43,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:43,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-26 14:32:43,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:45,068 INFO L129 PetriNetUnfolder]: 347/883 cut-off events. [2021-03-26 14:32:45,069 INFO L130 PetriNetUnfolder]: For 152212/152220 co-relation queries the response was YES. [2021-03-26 14:32:45,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18140 conditions, 883 events. 347/883 cut-off events. For 152212/152220 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6258 event pairs, 14 based on Foata normal form. 5/885 useless extension candidates. Maximal degree in co-relation 17848. Up to 596 conditions per place. [2021-03-26 14:32:45,083 INFO L132 encePairwiseOnDemand]: 112/136 looper letters, 289 selfloop transitions, 115 changer transitions 6/414 dead transitions. [2021-03-26 14:32:45,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 414 transitions, 12989 flow [2021-03-26 14:32:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 14:32:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 14:32:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 284 transitions. [2021-03-26 14:32:45,084 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12283737024221453 [2021-03-26 14:32:45,084 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 284 transitions. [2021-03-26 14:32:45,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 284 transitions. [2021-03-26 14:32:45,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:45,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 284 transitions. [2021-03-26 14:32:45,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.705882352941178) internal successors, (284), 17 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:45,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:45,086 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:45,086 INFO L185 Difference]: Start difference. First operand has 424 places, 373 transitions, 9913 flow. Second operand 17 states and 284 transitions. [2021-03-26 14:32:45,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 414 transitions, 12989 flow [2021-03-26 14:32:45,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 414 transitions, 12286 flow, removed 324 selfloop flow, removed 8 redundant places. [2021-03-26 14:32:45,892 INFO L241 Difference]: Finished difference. Result has 438 places, 387 transitions, 10494 flow [2021-03-26 14:32:45,892 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=9230, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10494, PETRI_PLACES=438, PETRI_TRANSITIONS=387} [2021-03-26 14:32:45,892 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 422 predicate places. [2021-03-26 14:32:45,892 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:45,892 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 387 transitions, 10494 flow [2021-03-26 14:32:45,892 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 387 transitions, 10494 flow [2021-03-26 14:32:45,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 387 transitions, 10494 flow [2021-03-26 14:32:46,091 INFO L129 PetriNetUnfolder]: 343/870 cut-off events. [2021-03-26 14:32:46,091 INFO L130 PetriNetUnfolder]: For 151857/151921 co-relation queries the response was YES. [2021-03-26 14:32:46,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17011 conditions, 870 events. 343/870 cut-off events. For 151857/151921 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6162 event pairs, 13 based on Foata normal form. 3/870 useless extension candidates. Maximal degree in co-relation 16721. Up to 518 conditions per place. [2021-03-26 14:32:46,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 14:32:46,644 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 14:32:46,644 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 14:32:46,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 752 [2021-03-26 14:32:46,644 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 387 transitions, 10549 flow [2021-03-26 14:32:46,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:46,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:46,645 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:46,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable577 [2021-03-26 14:32:46,846 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:46,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:46,846 INFO L82 PathProgramCache]: Analyzing trace with hash 898634980, now seen corresponding path program 1 times [2021-03-26 14:32:46,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:46,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350287692] [2021-03-26 14:32:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:46,877 INFO L142 QuantifierPusher]: treesize reduction 136, result has 18.6 percent of original size [2021-03-26 14:32:46,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:32:46,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:46,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:46,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:46,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350287692] [2021-03-26 14:32:46,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718752447] [2021-03-26 14:32:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:32:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:46,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:32:46,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:46,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:46,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:32:46,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 14:32:46,962 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 14:32:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:46,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:46,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:32:47,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-03-26 14:32:47,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-03-26 14:32:47,008 INFO L142 QuantifierPusher]: treesize reduction 2416, result has 14.9 percent of original size [2021-03-26 14:32:47,009 INFO L147 QuantifierPusher]: treesize reduction 14, result has 96.7 percent of original size 410 [2021-03-26 14:32:47,011 INFO L142 QuantifierPusher]: treesize reduction 14, result has 96.7 percent of original size [2021-03-26 14:32:47,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-03-26 14:32:47,294 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2021-03-26 14:32:47,295 INFO L142 QuantifierPusher]: treesize reduction 129, result has 53.8 percent of original size [2021-03-26 14:32:47,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:32:47,297 INFO L147 QuantifierPusher]: treesize reduction 40, result has 73.3 percent of original size 110 [2021-03-26 14:32:47,298 INFO L142 QuantifierPusher]: treesize reduction 40, result has 73.5 percent of original size [2021-03-26 14:32:47,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 14:32:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:32:47,300 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-26 14:32:47,300 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:47,301 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,301 INFO L142 QuantifierPusher]: treesize reduction 90, result has 59.3 percent of original size [2021-03-26 14:32:47,303 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:47,303 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,304 INFO L142 QuantifierPusher]: treesize reduction 90, result has 45.8 percent of original size [2021-03-26 14:32:47,304 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:47,304 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,305 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.9 percent of original size [2021-03-26 14:32:47,306 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:47,307 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:47,307 INFO L142 QuantifierPusher]: treesize reduction 34, result has 43.3 percent of original size [2021-03-26 14:32:47,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:47,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:47,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:47,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:47,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:47,328 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:47,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:47,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:47,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:47,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:47,330 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:47,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:47,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:47,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076019959] [2021-03-26 14:32:47,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:47,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:47,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:47,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:47,336 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 139 [2021-03-26 14:32:47,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 387 transitions, 10549 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:47,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:47,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 139 [2021-03-26 14:32:47,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:48,133 INFO L129 PetriNetUnfolder]: 347/867 cut-off events. [2021-03-26 14:32:48,134 INFO L130 PetriNetUnfolder]: For 160195/160203 co-relation queries the response was YES. [2021-03-26 14:32:48,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17981 conditions, 867 events. 347/867 cut-off events. For 160195/160203 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6056 event pairs, 14 based on Foata normal form. 3/865 useless extension candidates. Maximal degree in co-relation 17682. Up to 684 conditions per place. [2021-03-26 14:32:48,149 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 348 selfloop transitions, 42 changer transitions 0/395 dead transitions. [2021-03-26 14:32:48,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 395 transitions, 11903 flow [2021-03-26 14:32:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 14:32:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 14:32:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2021-03-26 14:32:48,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14964028776978416 [2021-03-26 14:32:48,151 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 208 transitions. [2021-03-26 14:32:48,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 208 transitions. [2021-03-26 14:32:48,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:48,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 208 transitions. [2021-03-26 14:32:48,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.8) internal successors, (208), 10 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:48,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:48,152 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:48,152 INFO L185 Difference]: Start difference. First operand has 436 places, 387 transitions, 10549 flow. Second operand 10 states and 208 transitions. [2021-03-26 14:32:48,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 395 transitions, 11903 flow [2021-03-26 14:32:48,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 395 transitions, 10914 flow, removed 471 selfloop flow, removed 9 redundant places. [2021-03-26 14:32:48,938 INFO L241 Difference]: Finished difference. Result has 436 places, 387 transitions, 9798 flow [2021-03-26 14:32:48,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9542, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9798, PETRI_PLACES=436, PETRI_TRANSITIONS=387} [2021-03-26 14:32:48,939 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 420 predicate places. [2021-03-26 14:32:48,939 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:48,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 387 transitions, 9798 flow [2021-03-26 14:32:48,939 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 387 transitions, 9798 flow [2021-03-26 14:32:48,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 387 transitions, 9798 flow [2021-03-26 14:32:49,132 INFO L129 PetriNetUnfolder]: 344/861 cut-off events. [2021-03-26 14:32:49,132 INFO L130 PetriNetUnfolder]: For 144764/144796 co-relation queries the response was YES. [2021-03-26 14:32:49,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16338 conditions, 861 events. 344/861 cut-off events. For 144764/144796 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6068 event pairs, 13 based on Foata normal form. 5/863 useless extension candidates. Maximal degree in co-relation 16052. Up to 507 conditions per place. [2021-03-26 14:32:49,149 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 14:32:49,167 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:49,167 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:49,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-26 14:32:49,168 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 387 transitions, 9798 flow [2021-03-26 14:32:49,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:49,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:49,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:49,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable586 [2021-03-26 14:32:49,372 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:49,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1490645009, now seen corresponding path program 1 times [2021-03-26 14:32:49,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:49,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320930675] [2021-03-26 14:32:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:49,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:49,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:49,390 INFO L142 QuantifierPusher]: treesize reduction 28, result has 42.9 percent of original size [2021-03-26 14:32:49,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:32:49,399 INFO L142 QuantifierPusher]: treesize reduction 142, result has 22.8 percent of original size [2021-03-26 14:32:49,400 INFO L147 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size 20 [2021-03-26 14:32:49,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:49,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:49,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:49,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:49,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:49,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:49,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320930675] [2021-03-26 14:32:49,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:49,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:49,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61833923] [2021-03-26 14:32:49,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:49,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:49,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:49,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 139 [2021-03-26 14:32:49,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 387 transitions, 9798 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:49,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:49,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 139 [2021-03-26 14:32:49,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:49,859 INFO L129 PetriNetUnfolder]: 346/860 cut-off events. [2021-03-26 14:32:49,859 INFO L130 PetriNetUnfolder]: For 148020/148028 co-relation queries the response was YES. [2021-03-26 14:32:49,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17167 conditions, 860 events. 346/860 cut-off events. For 148020/148028 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5977 event pairs, 15 based on Foata normal form. 2/859 useless extension candidates. Maximal degree in co-relation 16872. Up to 679 conditions per place. [2021-03-26 14:32:49,872 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 344 selfloop transitions, 43 changer transitions 0/392 dead transitions. [2021-03-26 14:32:49,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 392 transitions, 10920 flow [2021-03-26 14:32:49,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:32:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:32:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2021-03-26 14:32:49,873 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17163412127440905 [2021-03-26 14:32:49,873 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 167 transitions. [2021-03-26 14:32:49,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 167 transitions. [2021-03-26 14:32:49,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:49,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 167 transitions. [2021-03-26 14:32:49,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:49,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:49,874 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:49,874 INFO L185 Difference]: Start difference. First operand has 436 places, 387 transitions, 9798 flow. Second operand 7 states and 167 transitions. [2021-03-26 14:32:49,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 392 transitions, 10920 flow [2021-03-26 14:32:50,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 392 transitions, 10697 flow, removed 61 selfloop flow, removed 8 redundant places. [2021-03-26 14:32:50,631 INFO L241 Difference]: Finished difference. Result has 433 places, 385 transitions, 9607 flow [2021-03-26 14:32:50,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9521, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9607, PETRI_PLACES=433, PETRI_TRANSITIONS=385} [2021-03-26 14:32:50,631 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 417 predicate places. [2021-03-26 14:32:50,631 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:50,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 385 transitions, 9607 flow [2021-03-26 14:32:50,632 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 385 transitions, 9607 flow [2021-03-26 14:32:50,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 385 transitions, 9607 flow [2021-03-26 14:32:50,801 INFO L129 PetriNetUnfolder]: 343/859 cut-off events. [2021-03-26 14:32:50,801 INFO L130 PetriNetUnfolder]: For 142022/142086 co-relation queries the response was YES. [2021-03-26 14:32:50,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16163 conditions, 859 events. 343/859 cut-off events. For 142022/142086 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6029 event pairs, 9 based on Foata normal form. 3/859 useless extension candidates. Maximal degree in co-relation 15878. Up to 505 conditions per place. [2021-03-26 14:32:50,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 14:32:50,835 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:50,835 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:50,835 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 204 [2021-03-26 14:32:50,835 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 385 transitions, 9607 flow [2021-03-26 14:32:50,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:50,835 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:50,835 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:50,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-03-26 14:32:50,836 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:50,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:50,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2078733865, now seen corresponding path program 1 times [2021-03-26 14:32:50,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:50,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471206139] [2021-03-26 14:32:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:50,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:50,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:50,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:50,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:50,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:50,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:32:50,886 INFO L142 QuantifierPusher]: treesize reduction 100, result has 34.6 percent of original size [2021-03-26 14:32:50,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:50,925 INFO L142 QuantifierPusher]: treesize reduction 100, result has 27.5 percent of original size [2021-03-26 14:32:50,926 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size 31 [2021-03-26 14:32:50,968 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:32:50,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:32:50,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:50,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:32:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:50,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471206139] [2021-03-26 14:32:50,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678603545] [2021-03-26 14:32:50,999 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 [2021-03-26 14:32:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:51,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-26 14:32:51,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:51,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:51,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:51,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:51,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:51,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:51,074 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,075 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:51,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:51,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:51,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:51,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 14:32:51,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:32:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-03-26 14:32:51,102 INFO L142 QuantifierPusher]: treesize reduction 694, result has 13.9 percent of original size [2021-03-26 14:32:51,102 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:51,103 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,104 INFO L142 QuantifierPusher]: treesize reduction 66, result has 48.0 percent of original size [2021-03-26 14:32:51,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:32:51,106 INFO L147 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size 53 [2021-03-26 14:32:51,107 INFO L142 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size [2021-03-26 14:32:51,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:51,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-03-26 14:32:51,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 14:32:51,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:51,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:32:51,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,159 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:51,160 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,160 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:32:51,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:51,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:51,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:32:51,213 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.7 percent of original size [2021-03-26 14:32:51,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 14:32:51,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:32:51,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 14:32:51,219 INFO L142 QuantifierPusher]: treesize reduction 178, result has 37.1 percent of original size [2021-03-26 14:32:51,221 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-26 14:32:51,222 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-26 14:32:51,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 14:32:51,328 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.8 percent of original size [2021-03-26 14:32:51,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:32:51,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:32:51,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 14:32:51,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 14:32:51,336 INFO L142 QuantifierPusher]: treesize reduction 62, result has 74.1 percent of original size [2021-03-26 14:32:51,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,338 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:32:51,338 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:32:51,339 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,340 INFO L142 QuantifierPusher]: treesize reduction 178, result has 45.4 percent of original size [2021-03-26 14:32:51,341 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:32:51,341 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,343 INFO L142 QuantifierPusher]: treesize reduction 152, result has 40.9 percent of original size [2021-03-26 14:32:51,345 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:32:51,346 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,346 INFO L142 QuantifierPusher]: treesize reduction 45, result has 48.3 percent of original size [2021-03-26 14:32:51,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:51,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:32:51,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:32:51,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:32:51,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:32:51,377 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-03-26 14:32:51,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:32:51,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:32:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:51,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:32:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:51,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:32:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:51,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:51,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 14:32:51,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912530140] [2021-03-26 14:32:51,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 14:32:51,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:51,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 14:32:51,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-26 14:32:51,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 139 [2021-03-26 14:32:51,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 385 transitions, 9607 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:51,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:51,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 139 [2021-03-26 14:32:51,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:52,748 INFO L129 PetriNetUnfolder]: 355/890 cut-off events. [2021-03-26 14:32:52,748 INFO L130 PetriNetUnfolder]: For 149670/149678 co-relation queries the response was YES. [2021-03-26 14:32:52,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17724 conditions, 890 events. 355/890 cut-off events. For 149670/149678 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6261 event pairs, 14 based on Foata normal form. 2/889 useless extension candidates. Maximal degree in co-relation 17430. Up to 717 conditions per place. [2021-03-26 14:32:52,763 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 343 selfloop transitions, 59 changer transitions 3/409 dead transitions. [2021-03-26 14:32:52,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 409 transitions, 11672 flow [2021-03-26 14:32:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 14:32:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 14:32:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 252 transitions. [2021-03-26 14:32:52,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12086330935251799 [2021-03-26 14:32:52,765 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 252 transitions. [2021-03-26 14:32:52,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 252 transitions. [2021-03-26 14:32:52,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:52,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 252 transitions. [2021-03-26 14:32:52,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.8) internal successors, (252), 15 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:52,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:52,766 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:52,766 INFO L185 Difference]: Start difference. First operand has 433 places, 385 transitions, 9607 flow. Second operand 15 states and 252 transitions. [2021-03-26 14:32:52,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 409 transitions, 11672 flow [2021-03-26 14:32:53,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 409 transitions, 11590 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 14:32:53,621 INFO L241 Difference]: Finished difference. Result has 449 places, 400 transitions, 10579 flow [2021-03-26 14:32:53,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9527, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10579, PETRI_PLACES=449, PETRI_TRANSITIONS=400} [2021-03-26 14:32:53,621 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 433 predicate places. [2021-03-26 14:32:53,621 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:53,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 400 transitions, 10579 flow [2021-03-26 14:32:53,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 400 transitions, 10579 flow [2021-03-26 14:32:53,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 447 places, 400 transitions, 10579 flow [2021-03-26 14:32:53,804 INFO L129 PetriNetUnfolder]: 352/880 cut-off events. [2021-03-26 14:32:53,804 INFO L130 PetriNetUnfolder]: For 156542/156574 co-relation queries the response was YES. [2021-03-26 14:32:53,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17175 conditions, 880 events. 352/880 cut-off events. For 156542/156574 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6180 event pairs, 8 based on Foata normal form. 5/882 useless extension candidates. Maximal degree in co-relation 16979. Up to 524 conditions per place. [2021-03-26 14:32:53,823 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 14:32:53,938 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 14:32:54,121 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2021-03-26 14:32:54,214 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:54,214 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:32:54,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 593 [2021-03-26 14:32:54,215 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 400 transitions, 10603 flow [2021-03-26 14:32:54,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 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) [2021-03-26 14:32:54,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:54,215 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:54,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable592 [2021-03-26 14:32:54,416 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:54,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:54,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2081346236, now seen corresponding path program 1 times [2021-03-26 14:32:54,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:54,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388877661] [2021-03-26 14:32:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:54,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:32:54,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:54,447 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:32:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:32:54,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:32:54,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:54,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:54,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388877661] [2021-03-26 14:32:54,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072895068] [2021-03-26 14:32:54,483 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 [2021-03-26 14:32:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:54,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-26 14:32:54,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:54,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:54,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:54,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:54,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,568 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:54,569 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,570 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,588 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 14:32:54,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:54,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:54,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:54,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,591 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:54,591 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,591 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:32:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:54,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-26 14:32:54,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-26 14:32:54,612 INFO L142 QuantifierPusher]: treesize reduction 5415, result has 1.9 percent of original size [2021-03-26 14:32:54,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:32:54,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:32:54,669 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-26 14:32:54,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 14:32:54,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-03-26 14:32:54,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-26 14:32:54,673 INFO L142 QuantifierPusher]: treesize reduction 2, result has 98.5 percent of original size [2021-03-26 14:32:54,673 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:54,674 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,674 INFO L142 QuantifierPusher]: treesize reduction 90, result has 59.3 percent of original size [2021-03-26 14:32:54,676 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:32:54,676 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,677 INFO L142 QuantifierPusher]: treesize reduction 90, result has 45.8 percent of original size [2021-03-26 14:32:54,677 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:54,678 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,679 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.9 percent of original size [2021-03-26 14:32:54,679 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:32:54,679 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:54,680 INFO L142 QuantifierPusher]: treesize reduction 34, result has 43.3 percent of original size [2021-03-26 14:32:54,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:54,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:32:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:32:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:54,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:32:54,704 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:32:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:54,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:54,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:54,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:54,717 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:54,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:54,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:54,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:54,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:32:54,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987730181] [2021-03-26 14:32:54,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 14:32:54,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:54,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 14:32:54,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-26 14:32:54,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-26 14:32:54,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 400 transitions, 10603 flow. Second operand has 12 states, 12 states have (on average 13.0) internal successors, (156), 12 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:54,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:54,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-26 14:32:54,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:55,375 INFO L129 PetriNetUnfolder]: 355/888 cut-off events. [2021-03-26 14:32:55,375 INFO L130 PetriNetUnfolder]: For 164227/164235 co-relation queries the response was YES. [2021-03-26 14:32:55,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18339 conditions, 888 events. 355/888 cut-off events. For 164227/164235 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6217 event pairs, 13 based on Foata normal form. 3/888 useless extension candidates. Maximal degree in co-relation 18141. Up to 579 conditions per place. [2021-03-26 14:32:55,389 INFO L132 encePairwiseOnDemand]: 114/140 looper letters, 304 selfloop transitions, 111 changer transitions 1/421 dead transitions. [2021-03-26 14:32:55,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 421 transitions, 12747 flow [2021-03-26 14:32:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 14:32:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 14:32:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 255 transitions. [2021-03-26 14:32:55,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1401098901098901 [2021-03-26 14:32:55,390 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 255 transitions. [2021-03-26 14:32:55,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 255 transitions. [2021-03-26 14:32:55,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:55,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 255 transitions. [2021-03-26 14:32:55,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 19.615384615384617) internal successors, (255), 13 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:55,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:55,392 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:55,392 INFO L185 Difference]: Start difference. First operand has 447 places, 400 transitions, 10603 flow. Second operand 13 states and 255 transitions. [2021-03-26 14:32:55,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 421 transitions, 12747 flow [2021-03-26 14:32:56,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 421 transitions, 11983 flow, removed 376 selfloop flow, removed 6 redundant places. [2021-03-26 14:32:56,331 INFO L241 Difference]: Finished difference. Result has 453 places, 398 transitions, 10141 flow [2021-03-26 14:32:56,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=9845, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10141, PETRI_PLACES=453, PETRI_TRANSITIONS=398} [2021-03-26 14:32:56,332 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-26 14:32:56,332 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:56,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 398 transitions, 10141 flow [2021-03-26 14:32:56,332 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 398 transitions, 10141 flow [2021-03-26 14:32:56,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 453 places, 398 transitions, 10141 flow [2021-03-26 14:32:56,522 INFO L129 PetriNetUnfolder]: 352/883 cut-off events. [2021-03-26 14:32:56,522 INFO L130 PetriNetUnfolder]: For 158735/158767 co-relation queries the response was YES. [2021-03-26 14:32:56,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17102 conditions, 883 events. 352/883 cut-off events. For 158735/158767 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6247 event pairs, 9 based on Foata normal form. 5/885 useless extension candidates. Maximal degree in co-relation 16806. Up to 512 conditions per place. [2021-03-26 14:32:56,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 14:32:56,559 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:56,560 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:56,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-26 14:32:56,560 INFO L480 AbstractCegarLoop]: Abstraction has has 453 places, 398 transitions, 10141 flow [2021-03-26 14:32:56,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 13.0) internal successors, (156), 12 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:56,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:56,560 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:56,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:32:56,764 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:56,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1702150661, now seen corresponding path program 1 times [2021-03-26 14:32:56,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:56,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071250212] [2021-03-26 14:32:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:56,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:56,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:32:56,801 INFO L142 QuantifierPusher]: treesize reduction 65, result has 24.4 percent of original size [2021-03-26 14:32:56,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:32:56,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:56,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071250212] [2021-03-26 14:32:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931961503] [2021-03-26 14:32:56,833 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 [2021-03-26 14:32:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:56,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:32:56,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:32:56,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:56,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:56,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:56,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:56,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:32:56,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,919 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:56,919 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:56,920 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:32:56,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:56,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:56,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:56,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-26 14:32:56,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-26 14:32:56,942 INFO L142 QuantifierPusher]: treesize reduction 1519, result has 5.5 percent of original size [2021-03-26 14:32:56,943 INFO L147 QuantifierPusher]: treesize reduction 33, result has 62.5 percent of original size 55 [2021-03-26 14:32:56,944 INFO L142 QuantifierPusher]: treesize reduction 33, result has 62.5 percent of original size [2021-03-26 14:32:56,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:56,980 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-26 14:32:56,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:32:56,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:56,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:32:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 14:32:56,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,983 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:32:56,984 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:56,984 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:32:56,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:32:56,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:56,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:56,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:57,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:57,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:57,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:57,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:32:57,029 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-26 14:32:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 14:32:57,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:32:57,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:32:57,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 14:32:57,034 INFO L142 QuantifierPusher]: treesize reduction 99, result has 32.7 percent of original size [2021-03-26 14:32:57,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:57,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:32:57,037 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:32:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:57,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:32:57,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 14:32:57,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992273772] [2021-03-26 14:32:57,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 14:32:57,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:57,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 14:32:57,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 14:32:57,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 140 [2021-03-26 14:32:57,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 398 transitions, 10141 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:32:57,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:57,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 140 [2021-03-26 14:32:57,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:32:57,798 INFO L129 PetriNetUnfolder]: 360/899 cut-off events. [2021-03-26 14:32:57,798 INFO L130 PetriNetUnfolder]: For 169279/169319 co-relation queries the response was YES. [2021-03-26 14:32:57,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18248 conditions, 899 events. 360/899 cut-off events. For 169279/169319 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6304 event pairs, 14 based on Foata normal form. 4/900 useless extension candidates. Maximal degree in co-relation 17945. Up to 601 conditions per place. [2021-03-26 14:32:57,848 INFO L132 encePairwiseOnDemand]: 127/140 looper letters, 332 selfloop transitions, 45 changer transitions 0/408 dead transitions. [2021-03-26 14:32:57,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 408 transitions, 11498 flow [2021-03-26 14:32:57,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:32:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:32:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2021-03-26 14:32:57,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17767857142857144 [2021-03-26 14:32:57,850 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 199 transitions. [2021-03-26 14:32:57,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 199 transitions. [2021-03-26 14:32:57,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:32:57,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 199 transitions. [2021-03-26 14:32:57,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:32:57,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 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) [2021-03-26 14:32:57,851 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 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) [2021-03-26 14:32:57,851 INFO L185 Difference]: Start difference. First operand has 453 places, 398 transitions, 10141 flow. Second operand 8 states and 199 transitions. [2021-03-26 14:32:57,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 408 transitions, 11498 flow [2021-03-26 14:32:58,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 408 transitions, 11298 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-03-26 14:32:58,704 INFO L241 Difference]: Finished difference. Result has 452 places, 403 transitions, 10353 flow [2021-03-26 14:32:58,704 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=9951, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10353, PETRI_PLACES=452, PETRI_TRANSITIONS=403} [2021-03-26 14:32:58,704 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 436 predicate places. [2021-03-26 14:32:58,704 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:32:58,704 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 403 transitions, 10353 flow [2021-03-26 14:32:58,705 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 403 transitions, 10353 flow [2021-03-26 14:32:58,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 403 transitions, 10353 flow [2021-03-26 14:32:58,895 INFO L129 PetriNetUnfolder]: 358/901 cut-off events. [2021-03-26 14:32:58,895 INFO L130 PetriNetUnfolder]: For 162843/162949 co-relation queries the response was YES. [2021-03-26 14:32:58,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17437 conditions, 901 events. 358/901 cut-off events. For 162843/162949 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6401 event pairs, 14 based on Foata normal form. 1/899 useless extension candidates. Maximal degree in co-relation 17208. Up to 523 conditions per place. [2021-03-26 14:32:58,913 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 14:32:58,932 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:32:58,932 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:32:58,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-26 14:32:58,933 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 403 transitions, 10353 flow [2021-03-26 14:32:58,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 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) [2021-03-26 14:32:58,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:32:58,933 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:32:59,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable606 [2021-03-26 14:32:59,136 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:32:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:32:59,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1630414243, now seen corresponding path program 1 times [2021-03-26 14:32:59,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:32:59,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668519995] [2021-03-26 14:32:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:32:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:32:59,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:59,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:59,155 INFO L142 QuantifierPusher]: treesize reduction 1911, result has 6.1 percent of original size [2021-03-26 14:32:59,156 INFO L147 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size 117 [2021-03-26 14:32:59,193 INFO L142 QuantifierPusher]: treesize reduction 2476, result has 22.6 percent of original size [2021-03-26 14:32:59,196 INFO L147 QuantifierPusher]: treesize reduction 40, result has 94.5 percent of original size 683 [2021-03-26 14:32:59,475 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 34 [2021-03-26 14:32:59,477 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 14:32:59,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:32:59,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:59,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:32:59,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:32:59,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:32:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:32:59,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668519995] [2021-03-26 14:32:59,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:32:59,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 14:32:59,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704217347] [2021-03-26 14:32:59,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 14:32:59,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:32:59,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 14:32:59,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 14:32:59,498 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-26 14:32:59,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 403 transitions, 10353 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:32:59,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:32:59,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-26 14:32:59,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:00,188 INFO L129 PetriNetUnfolder]: 360/896 cut-off events. [2021-03-26 14:33:00,189 INFO L130 PetriNetUnfolder]: For 166785/166793 co-relation queries the response was YES. [2021-03-26 14:33:00,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18277 conditions, 896 events. 360/896 cut-off events. For 166785/166793 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6270 event pairs, 16 based on Foata normal form. 1/894 useless extension candidates. Maximal degree in co-relation 18042. Up to 718 conditions per place. [2021-03-26 14:33:00,203 INFO L132 encePairwiseOnDemand]: 128/140 looper letters, 365 selfloop transitions, 32 changer transitions 2/404 dead transitions. [2021-03-26 14:33:00,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 404 transitions, 11246 flow [2021-03-26 14:33:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 14:33:00,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 14:33:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-03-26 14:33:00,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1761904761904762 [2021-03-26 14:33:00,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-03-26 14:33:00,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-03-26 14:33:00,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:00,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-03-26 14:33:00,205 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) [2021-03-26 14:33:00,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:00,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:00,205 INFO L185 Difference]: Start difference. First operand has 452 places, 403 transitions, 10353 flow. Second operand 6 states and 148 transitions. [2021-03-26 14:33:00,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 404 transitions, 11246 flow [2021-03-26 14:33:01,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 404 transitions, 11007 flow, removed 85 selfloop flow, removed 4 redundant places. [2021-03-26 14:33:01,189 INFO L241 Difference]: Finished difference. Result has 453 places, 400 transitions, 10107 flow [2021-03-26 14:33:01,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=10109, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10107, PETRI_PLACES=453, PETRI_TRANSITIONS=400} [2021-03-26 14:33:01,190 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-26 14:33:01,190 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:01,190 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 400 transitions, 10107 flow [2021-03-26 14:33:01,190 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 400 transitions, 10107 flow [2021-03-26 14:33:01,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 400 transitions, 10107 flow [2021-03-26 14:33:01,420 INFO L129 PetriNetUnfolder]: 357/893 cut-off events. [2021-03-26 14:33:01,421 INFO L130 PetriNetUnfolder]: For 161319/161425 co-relation queries the response was YES. [2021-03-26 14:33:01,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17200 conditions, 893 events. 357/893 cut-off events. For 161319/161425 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6305 event pairs, 14 based on Foata normal form. 1/891 useless extension candidates. Maximal degree in co-relation 16971. Up to 521 conditions per place. [2021-03-26 14:33:01,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 14:33:01,462 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:01,462 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:01,462 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-26 14:33:01,462 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 400 transitions, 10107 flow [2021-03-26 14:33:01,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 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) [2021-03-26 14:33:01,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:01,462 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:01,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-26 14:33:01,462 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:01,463 INFO L82 PathProgramCache]: Analyzing trace with hash -2010657860, now seen corresponding path program 2 times [2021-03-26 14:33:01,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:01,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259136038] [2021-03-26 14:33:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:01,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:33:01,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:01,497 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 14:33:01,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:33:01,513 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 14:33:01,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:33:01,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:01,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:01,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259136038] [2021-03-26 14:33:01,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707138647] [2021-03-26 14:33:01,545 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 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 [2021-03-26 14:33:01,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:33:01,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:33:01,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-26 14:33:01,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:01,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:01,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:01,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:33:01,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,624 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,624 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,625 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:01,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,643 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 14:33:01,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:01,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:01,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:33:01,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,646 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,646 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,647 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:33:01,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:01,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-26 14:33:01,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-26 14:33:01,671 INFO L142 QuantifierPusher]: treesize reduction 5415, result has 1.9 percent of original size [2021-03-26 14:33:01,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:33:01,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:33:01,743 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-26 14:33:01,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-26 14:33:01,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:33:01,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:33:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,749 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 14:33:01,749 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,749 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,750 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:01,750 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,750 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:33:01,751 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,752 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,752 INFO L142 QuantifierPusher]: treesize reduction 50, result has 55.4 percent of original size [2021-03-26 14:33:01,753 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:01,753 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,754 INFO L142 QuantifierPusher]: treesize reduction 53, result has 17.2 percent of original size [2021-03-26 14:33:01,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:01,756 INFO L147 QuantifierPusher]: treesize reduction 8, result has 65.2 percent of original size 15 [2021-03-26 14:33:01,756 INFO L147 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size 42 [2021-03-26 14:33:01,757 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size [2021-03-26 14:33:01,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:33:01,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:33:01,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:33:01,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:33:01,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 14:33:01,798 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-26 14:33:01,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 14:33:01,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 14:33:01,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:33:01,802 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-26 14:33:01,802 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 14:33:01,803 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:01,803 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-26 14:33:01,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:01,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:01,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:01,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:01,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:01,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:01,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 14:33:01,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79198963] [2021-03-26 14:33:01,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:33:01,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:01,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:33:01,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:33:01,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-26 14:33:01,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 400 transitions, 10107 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:33:01,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:01,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-26 14:33:01,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:02,504 INFO L129 PetriNetUnfolder]: 358/886 cut-off events. [2021-03-26 14:33:02,504 INFO L130 PetriNetUnfolder]: For 161984/161992 co-relation queries the response was YES. [2021-03-26 14:33:02,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17992 conditions, 886 events. 358/886 cut-off events. For 161984/161992 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6168 event pairs, 14 based on Foata normal form. 3/886 useless extension candidates. Maximal degree in co-relation 17761. Up to 589 conditions per place. [2021-03-26 14:33:02,520 INFO L132 encePairwiseOnDemand]: 115/140 looper letters, 306 selfloop transitions, 107 changer transitions 3/421 dead transitions. [2021-03-26 14:33:02,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 421 transitions, 11983 flow [2021-03-26 14:33:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:33:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:33:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2021-03-26 14:33:02,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1474025974025974 [2021-03-26 14:33:02,521 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 227 transitions. [2021-03-26 14:33:02,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 227 transitions. [2021-03-26 14:33:02,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:02,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 227 transitions. [2021-03-26 14:33:02,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 20.636363636363637) internal successors, (227), 11 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:02,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:02,523 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:02,523 INFO L185 Difference]: Start difference. First operand has 446 places, 400 transitions, 10107 flow. Second operand 11 states and 227 transitions. [2021-03-26 14:33:02,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 421 transitions, 11983 flow [2021-03-26 14:33:03,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 421 transitions, 11901 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 14:33:03,435 INFO L241 Difference]: Finished difference. Result has 453 places, 398 transitions, 10196 flow [2021-03-26 14:33:03,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=10025, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10196, PETRI_PLACES=453, PETRI_TRANSITIONS=398} [2021-03-26 14:33:03,435 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-26 14:33:03,436 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:03,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 398 transitions, 10196 flow [2021-03-26 14:33:03,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 398 transitions, 10196 flow [2021-03-26 14:33:03,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 398 transitions, 10196 flow [2021-03-26 14:33:03,649 INFO L129 PetriNetUnfolder]: 355/883 cut-off events. [2021-03-26 14:33:03,649 INFO L130 PetriNetUnfolder]: For 159720/159823 co-relation queries the response was YES. [2021-03-26 14:33:03,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17138 conditions, 883 events. 355/883 cut-off events. For 159720/159823 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6179 event pairs, 14 based on Foata normal form. 3/883 useless extension candidates. Maximal degree in co-relation 16914. Up to 517 conditions per place. [2021-03-26 14:33:03,666 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-26 14:33:03,894 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:03,894 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:33:03,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 458 [2021-03-26 14:33:03,894 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 398 transitions, 10216 flow [2021-03-26 14:33:03,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 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) [2021-03-26 14:33:03,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:03,895 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:04,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable610 [2021-03-26 14:33:04,095 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:04,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:04,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1418951216, now seen corresponding path program 1 times [2021-03-26 14:33:04,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:04,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673680532] [2021-03-26 14:33:04,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:04,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 14:33:04,118 INFO L142 QuantifierPusher]: treesize reduction 2966, result has 17.2 percent of original size [2021-03-26 14:33:04,120 INFO L147 QuantifierPusher]: treesize reduction 468, result has 24.1 percent of original size 149 [2021-03-26 14:33:04,205 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-26 14:33:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 14:33:04,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:04,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673680532] [2021-03-26 14:33:04,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666560935] [2021-03-26 14:33:04,226 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 [2021-03-26 14:33:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:04,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:33:04,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:04,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:04,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:04,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:33:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,281 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:04,282 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:04,282 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:04,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:04,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:33:04,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:04,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:33:04,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:33:04,301 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.4 percent of original size [2021-03-26 14:33:04,302 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:04,302 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:04,303 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:04,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:04,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:04,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:04,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 96.6 percent of original size [2021-03-26 14:33:04,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-03-26 14:33:04,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-03-26 14:33:04,345 INFO L142 QuantifierPusher]: treesize reduction 21495, result has 0.6 percent of original size [2021-03-26 14:33:04,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:33:04,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 14:33:04,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.6 percent of original size [2021-03-26 14:33:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 14:33:04,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:04,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 14:33:04,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 14:33:04,447 INFO L142 QuantifierPusher]: treesize reduction 55, result has 46.6 percent of original size [2021-03-26 14:33:04,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:04,464 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:04,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:04,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:04,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:04,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 14:33:04,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380135744] [2021-03-26 14:33:04,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:33:04,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:04,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:33:04,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:33:04,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-26 14:33:04,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 398 transitions, 10216 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:04,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:04,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-26 14:33:04,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:05,078 INFO L129 PetriNetUnfolder]: 360/890 cut-off events. [2021-03-26 14:33:05,078 INFO L130 PetriNetUnfolder]: For 165210/165218 co-relation queries the response was YES. [2021-03-26 14:33:05,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18201 conditions, 890 events. 360/890 cut-off events. For 165210/165218 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6171 event pairs, 16 based on Foata normal form. 2/889 useless extension candidates. Maximal degree in co-relation 17962. Up to 703 conditions per place. [2021-03-26 14:33:05,094 INFO L132 encePairwiseOnDemand]: 124/141 looper letters, 356 selfloop transitions, 47 changer transitions 0/408 dead transitions. [2021-03-26 14:33:05,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 408 transitions, 11638 flow [2021-03-26 14:33:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 14:33:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 14:33:05,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 196 transitions. [2021-03-26 14:33:05,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15445232466509062 [2021-03-26 14:33:05,095 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 196 transitions. [2021-03-26 14:33:05,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 196 transitions. [2021-03-26 14:33:05,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:05,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 196 transitions. [2021-03-26 14:33:05,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.77777777777778) internal successors, (196), 9 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) [2021-03-26 14:33:05,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:05,096 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:05,096 INFO L185 Difference]: Start difference. First operand has 452 places, 398 transitions, 10216 flow. Second operand 9 states and 196 transitions. [2021-03-26 14:33:05,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 408 transitions, 11638 flow [2021-03-26 14:33:05,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 408 transitions, 11377 flow, removed 20 selfloop flow, removed 10 redundant places. [2021-03-26 14:33:05,907 INFO L241 Difference]: Finished difference. Result has 451 places, 400 transitions, 10213 flow [2021-03-26 14:33:05,908 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9955, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10213, PETRI_PLACES=451, PETRI_TRANSITIONS=400} [2021-03-26 14:33:05,908 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 435 predicate places. [2021-03-26 14:33:05,908 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:05,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 451 places, 400 transitions, 10213 flow [2021-03-26 14:33:05,908 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 451 places, 400 transitions, 10213 flow [2021-03-26 14:33:05,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 400 transitions, 10213 flow [2021-03-26 14:33:06,092 INFO L129 PetriNetUnfolder]: 357/886 cut-off events. [2021-03-26 14:33:06,092 INFO L130 PetriNetUnfolder]: For 164077/164109 co-relation queries the response was YES. [2021-03-26 14:33:06,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17270 conditions, 886 events. 357/886 cut-off events. For 164077/164109 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6217 event pairs, 11 based on Foata normal form. 5/888 useless extension candidates. Maximal degree in co-relation 16948. Up to 519 conditions per place. [2021-03-26 14:33:06,110 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 14:33:06,129 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:06,129 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:06,129 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 221 [2021-03-26 14:33:06,129 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 400 transitions, 10213 flow [2021-03-26 14:33:06,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:06,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:06,129 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:06,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:06,330 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:06,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1800313614, now seen corresponding path program 1 times [2021-03-26 14:33:06,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:06,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367625968] [2021-03-26 14:33:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:06,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:06,345 INFO L142 QuantifierPusher]: treesize reduction 61, result has 31.5 percent of original size [2021-03-26 14:33:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:33:06,358 INFO L142 QuantifierPusher]: treesize reduction 183, result has 27.1 percent of original size [2021-03-26 14:33:06,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:33:06,396 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 14:33:06,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:06,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:06,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367625968] [2021-03-26 14:33:06,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089536275] [2021-03-26 14:33:06,418 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 [2021-03-26 14:33:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:06,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:33:06,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:06,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:06,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:06,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:06,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,487 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:06,488 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:06,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:06,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:33:06,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:06,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,491 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:06,491 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,492 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:06,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:06,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:06,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:06,513 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-26 14:33:06,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:33:06,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,515 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:06,516 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,516 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:06,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:06,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:06,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-26 14:33:06,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:33:06,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 14:33:06,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 14:33:06,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:33:06,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:33:06,567 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 14:33:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:33:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 14:33:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 14:33:06,570 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 14:33:06,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:06,572 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:06,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:06,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:06,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-26 14:33:06,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703269610] [2021-03-26 14:33:06,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:33:06,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:33:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:33:06,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-26 14:33:06,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 400 transitions, 10213 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:33:06,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:06,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-26 14:33:06,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:07,131 INFO L129 PetriNetUnfolder]: 361/888 cut-off events. [2021-03-26 14:33:07,131 INFO L130 PetriNetUnfolder]: For 169516/169524 co-relation queries the response was YES. [2021-03-26 14:33:07,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18269 conditions, 888 events. 361/888 cut-off events. For 169516/169524 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6125 event pairs, 17 based on Foata normal form. 7/892 useless extension candidates. Maximal degree in co-relation 18039. Up to 717 conditions per place. [2021-03-26 14:33:07,148 INFO L132 encePairwiseOnDemand]: 131/141 looper letters, 380 selfloop transitions, 19 changer transitions 0/404 dead transitions. [2021-03-26 14:33:07,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 404 transitions, 11395 flow [2021-03-26 14:33:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:33:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:33:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2021-03-26 14:33:07,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15780141843971632 [2021-03-26 14:33:07,149 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 178 transitions. [2021-03-26 14:33:07,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 178 transitions. [2021-03-26 14:33:07,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:07,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 178 transitions. [2021-03-26 14:33:07,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.25) internal successors, (178), 8 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) [2021-03-26 14:33:07,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 141.0) internal successors, (1269), 9 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:07,150 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 141.0) internal successors, (1269), 9 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:07,150 INFO L185 Difference]: Start difference. First operand has 451 places, 400 transitions, 10213 flow. Second operand 8 states and 178 transitions. [2021-03-26 14:33:07,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 404 transitions, 11395 flow [2021-03-26 14:33:08,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 404 transitions, 11194 flow, removed 54 selfloop flow, removed 7 redundant places. [2021-03-26 14:33:08,027 INFO L241 Difference]: Finished difference. Result has 452 places, 400 transitions, 10066 flow [2021-03-26 14:33:08,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9989, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10066, PETRI_PLACES=452, PETRI_TRANSITIONS=400} [2021-03-26 14:33:08,028 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 436 predicate places. [2021-03-26 14:33:08,028 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:08,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 400 transitions, 10066 flow [2021-03-26 14:33:08,028 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 400 transitions, 10066 flow [2021-03-26 14:33:08,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 400 transitions, 10066 flow [2021-03-26 14:33:08,264 INFO L129 PetriNetUnfolder]: 358/882 cut-off events. [2021-03-26 14:33:08,264 INFO L130 PetriNetUnfolder]: For 164290/164305 co-relation queries the response was YES. [2021-03-26 14:33:08,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17306 conditions, 882 events. 358/882 cut-off events. For 164290/164305 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6175 event pairs, 10 based on Foata normal form. 3/882 useless extension candidates. Maximal degree in co-relation 17080. Up to 523 conditions per place. [2021-03-26 14:33:08,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-26 14:33:08,305 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:08,305 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:08,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 277 [2021-03-26 14:33:08,306 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 400 transitions, 10066 flow [2021-03-26 14:33:08,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:33:08,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:08,306 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:08,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:08,506 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:08,506 INFO L82 PathProgramCache]: Analyzing trace with hash -458315674, now seen corresponding path program 1 times [2021-03-26 14:33:08,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:08,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561023500] [2021-03-26 14:33:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:08,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:08,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:33:08,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:33:08,561 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 14:33:08,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:08,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:08,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:08,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561023500] [2021-03-26 14:33:08,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681198131] [2021-03-26 14:33:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:33:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:08,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:33:08,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:08,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:08,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:08,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:08,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:08,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,646 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:08,646 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:08,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:08,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 14:33:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:33:08,659 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-26 14:33:08,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:33:08,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:33:08,689 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-26 14:33:08,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 14:33:08,715 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-26 14:33:08,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:08,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:08,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:08,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:33:08,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,717 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:08,718 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:08,718 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:08,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:08,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:08,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:08,747 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 14:33:08,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:33:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:33:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:33:08,750 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-26 14:33:08,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:08,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:08,752 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:08,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:08,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:08,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:08,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 14:33:08,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815648682] [2021-03-26 14:33:08,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 14:33:08,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:08,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 14:33:08,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-26 14:33:08,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-26 14:33:08,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 400 transitions, 10066 flow. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:08,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:08,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-26 14:33:08,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:09,480 INFO L129 PetriNetUnfolder]: 363/892 cut-off events. [2021-03-26 14:33:09,481 INFO L130 PetriNetUnfolder]: For 169431/169439 co-relation queries the response was YES. [2021-03-26 14:33:09,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18329 conditions, 892 events. 363/892 cut-off events. For 169431/169439 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6165 event pairs, 17 based on Foata normal form. 6/895 useless extension candidates. Maximal degree in co-relation 18098. Up to 728 conditions per place. [2021-03-26 14:33:09,494 INFO L132 encePairwiseOnDemand]: 133/141 looper letters, 386 selfloop transitions, 14 changer transitions 0/405 dead transitions. [2021-03-26 14:33:09,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 405 transitions, 11268 flow [2021-03-26 14:33:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:33:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:33:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2021-03-26 14:33:09,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1691995947315096 [2021-03-26 14:33:09,496 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 167 transitions. [2021-03-26 14:33:09,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 167 transitions. [2021-03-26 14:33:09,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:09,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 167 transitions. [2021-03-26 14:33:09,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:09,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 141.0) internal successors, (1128), 8 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:09,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 141.0) internal successors, (1128), 8 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:09,497 INFO L185 Difference]: Start difference. First operand has 452 places, 400 transitions, 10066 flow. Second operand 7 states and 167 transitions. [2021-03-26 14:33:09,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 405 transitions, 11268 flow [2021-03-26 14:33:10,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 405 transitions, 11237 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 14:33:10,386 INFO L241 Difference]: Finished difference. Result has 454 places, 401 transitions, 10089 flow [2021-03-26 14:33:10,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10089, PETRI_PLACES=454, PETRI_TRANSITIONS=401} [2021-03-26 14:33:10,386 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 438 predicate places. [2021-03-26 14:33:10,386 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:10,386 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 454 places, 401 transitions, 10089 flow [2021-03-26 14:33:10,386 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 454 places, 401 transitions, 10089 flow [2021-03-26 14:33:10,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 401 transitions, 10089 flow [2021-03-26 14:33:10,567 INFO L129 PetriNetUnfolder]: 360/886 cut-off events. [2021-03-26 14:33:10,567 INFO L130 PetriNetUnfolder]: For 167521/167547 co-relation queries the response was YES. [2021-03-26 14:33:10,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17461 conditions, 886 events. 360/886 cut-off events. For 167521/167547 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6187 event pairs, 11 based on Foata normal form. 3/886 useless extension candidates. Maximal degree in co-relation 17234. Up to 528 conditions per place. [2021-03-26 14:33:10,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-26 14:33:10,603 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:10,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:10,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-26 14:33:10,604 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 401 transitions, 10089 flow [2021-03-26 14:33:10,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:10,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:10,604 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:10,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable624 [2021-03-26 14:33:10,804 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:10,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:10,805 INFO L82 PathProgramCache]: Analyzing trace with hash -85047830, now seen corresponding path program 1 times [2021-03-26 14:33:10,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:10,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112571758] [2021-03-26 14:33:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:10,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:10,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:10,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:10,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:10,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:10,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:10,849 INFO L142 QuantifierPusher]: treesize reduction 201, result has 18.0 percent of original size [2021-03-26 14:33:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:33:10,895 INFO L142 QuantifierPusher]: treesize reduction 201, result has 26.1 percent of original size [2021-03-26 14:33:10,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 14:33:10,947 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:33:10,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:10,977 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:33:10,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:33:10,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:10,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:33:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:11,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112571758] [2021-03-26 14:33:11,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119144664] [2021-03-26 14:33:11,009 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 [2021-03-26 14:33:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:11,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-26 14:33:11,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:11,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:11,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:11,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:11,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:11,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:11,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,087 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:11,088 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:11,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:11,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:33:11,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 14:33:11,091 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-26 14:33:11,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:33:11,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 14:33:11,161 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.9 percent of original size [2021-03-26 14:33:11,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:33:11,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 14:33:11,165 INFO L142 QuantifierPusher]: treesize reduction 160, result has 49.5 percent of original size [2021-03-26 14:33:11,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:33:11,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-26 14:33:11,243 INFO L142 QuantifierPusher]: treesize reduction 25, result has 87.9 percent of original size [2021-03-26 14:33:11,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:11,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 14:33:11,245 INFO L147 QuantifierPusher]: treesize reduction 114, result has 37.4 percent of original size 68 [2021-03-26 14:33:11,246 INFO L142 QuantifierPusher]: treesize reduction 114, result has 37.7 percent of original size [2021-03-26 14:33:11,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:33:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-26 14:33:11,248 INFO L142 QuantifierPusher]: treesize reduction 107, result has 48.3 percent of original size [2021-03-26 14:33:11,249 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size 87 [2021-03-26 14:33:11,250 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size [2021-03-26 14:33:11,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 14:33:11,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.3 percent of original size [2021-03-26 14:33:11,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:11,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-26 14:33:11,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 14:33:11,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 14:33:11,312 INFO L142 QuantifierPusher]: treesize reduction 46, result has 81.8 percent of original size [2021-03-26 14:33:11,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,314 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:33:11,314 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:11,314 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,315 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.0 percent of original size [2021-03-26 14:33:11,317 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:11,317 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,318 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-26 14:33:11,319 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:11,319 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,320 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-26 14:33:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 14:33:11,323 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 14:33:11,323 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 14:33:11,324 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 14:33:11,324 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-26 14:33:11,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:11,359 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:33:11,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:33:11,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:33:11,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 14:33:11,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:33:11,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 14:33:11,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,365 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 14:33:11,365 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:33:11,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,366 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 14:33:11,367 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:33:11,367 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,368 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-26 14:33:11,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:11,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:33:11,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:11,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:11,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:33:11,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:11,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,401 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:33:11,401 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:11,402 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,402 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:33:11,403 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:33:11,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:11,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:11,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:11,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:11,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:11,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:11,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:11,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-26 14:33:11,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644636701] [2021-03-26 14:33:11,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-26 14:33:11,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:11,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-26 14:33:11,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-03-26 14:33:11,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 141 [2021-03-26 14:33:11,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 401 transitions, 10089 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:11,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:11,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 141 [2021-03-26 14:33:11,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:11,584 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-26 14:33:11,872 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-26 14:33:13,118 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2021-03-26 14:33:13,338 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-26 14:33:13,433 INFO L129 PetriNetUnfolder]: 366/913 cut-off events. [2021-03-26 14:33:13,433 INFO L130 PetriNetUnfolder]: For 173679/173687 co-relation queries the response was YES. [2021-03-26 14:33:13,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18840 conditions, 913 events. 366/913 cut-off events. For 173679/173687 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6386 event pairs, 19 based on Foata normal form. 10/920 useless extension candidates. Maximal degree in co-relation 18608. Up to 760 conditions per place. [2021-03-26 14:33:13,448 INFO L132 encePairwiseOnDemand]: 130/141 looper letters, 373 selfloop transitions, 33 changer transitions 6/416 dead transitions. [2021-03-26 14:33:13,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 416 transitions, 11808 flow [2021-03-26 14:33:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 14:33:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 14:33:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 276 transitions. [2021-03-26 14:33:13,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11514392991239049 [2021-03-26 14:33:13,450 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 276 transitions. [2021-03-26 14:33:13,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 276 transitions. [2021-03-26 14:33:13,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:13,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 276 transitions. [2021-03-26 14:33:13,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.235294117647058) internal successors, (276), 17 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:13,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 141.0) internal successors, (2538), 18 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:13,451 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 141.0) internal successors, (2538), 18 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:13,451 INFO L185 Difference]: Start difference. First operand has 454 places, 401 transitions, 10089 flow. Second operand 17 states and 276 transitions. [2021-03-26 14:33:13,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 416 transitions, 11808 flow [2021-03-26 14:33:14,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 416 transitions, 11756 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-26 14:33:14,344 INFO L241 Difference]: Finished difference. Result has 465 places, 408 transitions, 10846 flow [2021-03-26 14:33:14,344 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9977, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10846, PETRI_PLACES=465, PETRI_TRANSITIONS=408} [2021-03-26 14:33:14,344 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 449 predicate places. [2021-03-26 14:33:14,344 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:14,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 408 transitions, 10846 flow [2021-03-26 14:33:14,344 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 408 transitions, 10846 flow [2021-03-26 14:33:14,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 461 places, 408 transitions, 10846 flow [2021-03-26 14:33:14,529 INFO L129 PetriNetUnfolder]: 362/896 cut-off events. [2021-03-26 14:33:14,530 INFO L130 PetriNetUnfolder]: For 172412/172438 co-relation queries the response was YES. [2021-03-26 14:33:14,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17991 conditions, 896 events. 362/896 cut-off events. For 172412/172438 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6263 event pairs, 12 based on Foata normal form. 3/896 useless extension candidates. Maximal degree in co-relation 17762. Up to 539 conditions per place. [2021-03-26 14:33:14,549 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 14:33:15,410 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:15,410 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 14:33:15,410 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1066 [2021-03-26 14:33:15,410 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 406 transitions, 10794 flow [2021-03-26 14:33:15,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:15,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:15,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:15,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable626 [2021-03-26 14:33:15,611 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:15,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1682225060, now seen corresponding path program 1 times [2021-03-26 14:33:15,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:15,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359119657] [2021-03-26 14:33:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:15,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:15,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:33:15,643 INFO L142 QuantifierPusher]: treesize reduction 30, result has 59.5 percent of original size [2021-03-26 14:33:15,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:33:15,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:33:15,711 INFO L142 QuantifierPusher]: treesize reduction 1944, result has 2.9 percent of original size [2021-03-26 14:33:15,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-26 14:33:15,745 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:33:15,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:33:15,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:33:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:15,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359119657] [2021-03-26 14:33:15,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879869029] [2021-03-26 14:33:15,771 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 [2021-03-26 14:33:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:15,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:33:15,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:15,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:15,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:15,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:15,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:15,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:15,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:15,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,826 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:15,827 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:15,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:15,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 14:33:15,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:33:15,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:33:15,832 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-26 14:33:15,832 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:15,833 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,833 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:33:15,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:15,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:15,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:15,860 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-26 14:33:15,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:33:15,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:15,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:15,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,863 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:15,864 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,864 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:15,898 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.2 percent of original size [2021-03-26 14:33:15,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:15,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 14:33:15,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:33:15,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 14:33:15,901 INFO L142 QuantifierPusher]: treesize reduction 23, result has 82.4 percent of original size [2021-03-26 14:33:15,902 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-26 14:33:15,902 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-26 14:33:15,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:33:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 14:33:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:33:15,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:33:15,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 14:33:15,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,961 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 14:33:15,961 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:15,962 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,962 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:15,962 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:15,962 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:33:15,963 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:15,964 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:15,965 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-26 14:33:15,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 14:33:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:33:15,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:15,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 14:33:16,056 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.2 percent of original size [2021-03-26 14:33:16,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:16,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 14:33:16,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 14:33:16,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-03-26 14:33:16,062 INFO L142 QuantifierPusher]: treesize reduction 214, result has 48.2 percent of original size [2021-03-26 14:33:16,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,063 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:33:16,063 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:16,064 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,065 INFO L142 QuantifierPusher]: treesize reduction 208, result has 40.1 percent of original size [2021-03-26 14:33:16,065 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:16,066 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,067 INFO L142 QuantifierPusher]: treesize reduction 61, result has 68.4 percent of original size [2021-03-26 14:33:16,067 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:16,067 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,068 INFO L142 QuantifierPusher]: treesize reduction 89, result has 44.4 percent of original size [2021-03-26 14:33:16,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 14:33:16,072 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 14:33:16,074 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:33:16,075 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 14:33:16,076 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 14:33:16,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 14:33:16,111 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 14:33:16,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:33:16,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:33:16,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 14:33:16,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:33:16,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 14:33:16,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,117 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 14:33:16,117 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:33:16,118 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,119 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 14:33:16,119 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:33:16,119 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:16,120 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 14:33:16,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:16,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:16,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-26 14:33:16,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683950832] [2021-03-26 14:33:16,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-26 14:33:16,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:16,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-26 14:33:16,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-26 14:33:16,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 146 [2021-03-26 14:33:16,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 406 transitions, 10794 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:16,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:16,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 146 [2021-03-26 14:33:16,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:16,741 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2021-03-26 14:33:17,120 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 41 [2021-03-26 14:33:18,000 INFO L129 PetriNetUnfolder]: 377/940 cut-off events. [2021-03-26 14:33:18,000 INFO L130 PetriNetUnfolder]: For 185806/185806 co-relation queries the response was YES. [2021-03-26 14:33:18,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19859 conditions, 940 events. 377/940 cut-off events. For 185806/185806 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6631 event pairs, 18 based on Foata normal form. 3/940 useless extension candidates. Maximal degree in co-relation 19625. Up to 783 conditions per place. [2021-03-26 14:33:18,018 INFO L132 encePairwiseOnDemand]: 134/146 looper letters, 388 selfloop transitions, 41 changer transitions 3/436 dead transitions. [2021-03-26 14:33:18,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 436 transitions, 13394 flow [2021-03-26 14:33:18,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 14:33:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 14:33:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 262 transitions. [2021-03-26 14:33:18,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11963470319634703 [2021-03-26 14:33:18,019 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 262 transitions. [2021-03-26 14:33:18,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 262 transitions. [2021-03-26 14:33:18,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:18,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 262 transitions. [2021-03-26 14:33:18,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 17.466666666666665) internal successors, (262), 15 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:18,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 146.0) internal successors, (2336), 16 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:18,021 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 146.0) internal successors, (2336), 16 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:18,021 INFO L185 Difference]: Start difference. First operand has 459 places, 406 transitions, 10794 flow. Second operand 15 states and 262 transitions. [2021-03-26 14:33:18,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 436 transitions, 13394 flow [2021-03-26 14:33:18,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 436 transitions, 12754 flow, removed 310 selfloop flow, removed 7 redundant places. [2021-03-26 14:33:18,953 INFO L241 Difference]: Finished difference. Result has 471 places, 431 transitions, 11858 flow [2021-03-26 14:33:18,953 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11858, PETRI_PLACES=471, PETRI_TRANSITIONS=431} [2021-03-26 14:33:18,953 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 455 predicate places. [2021-03-26 14:33:18,953 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:18,953 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 431 transitions, 11858 flow [2021-03-26 14:33:18,954 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 431 transitions, 11858 flow [2021-03-26 14:33:18,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 431 transitions, 11858 flow [2021-03-26 14:33:19,176 INFO L129 PetriNetUnfolder]: 374/931 cut-off events. [2021-03-26 14:33:19,176 INFO L130 PetriNetUnfolder]: For 182761/182787 co-relation queries the response was YES. [2021-03-26 14:33:19,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18758 conditions, 931 events. 374/931 cut-off events. For 182761/182787 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6601 event pairs, 12 based on Foata normal form. 3/931 useless extension candidates. Maximal degree in co-relation 18526. Up to 552 conditions per place. [2021-03-26 14:33:19,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 14:33:20,025 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:20,026 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:33:20,026 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1073 [2021-03-26 14:33:20,026 INFO L480 AbstractCegarLoop]: Abstraction has has 469 places, 431 transitions, 11885 flow [2021-03-26 14:33:20,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:20,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:20,026 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:20,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:20,227 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:20,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1304702638, now seen corresponding path program 2 times [2021-03-26 14:33:20,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:20,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453901305] [2021-03-26 14:33:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:20,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:20,253 INFO L142 QuantifierPusher]: treesize reduction 70, result has 35.2 percent of original size [2021-03-26 14:33:20,253 INFO L147 QuantifierPusher]: treesize reduction 15, result has 60.5 percent of original size 23 [2021-03-26 14:33:20,276 INFO L142 QuantifierPusher]: treesize reduction 70, result has 34.0 percent of original size [2021-03-26 14:33:20,277 INFO L147 QuantifierPusher]: treesize reduction 15, result has 58.3 percent of original size 21 [2021-03-26 14:33:20,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:20,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453901305] [2021-03-26 14:33:20,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873937000] [2021-03-26 14:33:20,307 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 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 [2021-03-26 14:33:20,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:33:20,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:33:20,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:33:20,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:20,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:20,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:20,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:20,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:20,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,362 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:20,362 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:20,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:20,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 14:33:20,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 14:33:20,367 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-26 14:33:20,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:33:20,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 14:33:20,396 INFO L142 QuantifierPusher]: treesize reduction 7, result has 91.9 percent of original size [2021-03-26 14:33:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:33:20,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:20,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-26 14:33:20,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,399 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:20,399 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:20,400 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:20,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:20,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:33:20,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 14:33:20,437 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-26 14:33:20,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:20,470 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 14:33:20,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:33:20,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:20,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:33:20,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:33:20,473 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-26 14:33:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:20,475 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:20,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:20,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-26 14:33:20,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017008190] [2021-03-26 14:33:20,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:33:20,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:20,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:33:20,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:33:20,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 150 [2021-03-26 14:33:20,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 431 transitions, 11885 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:20,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:20,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 150 [2021-03-26 14:33:20,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:21,420 INFO L129 PetriNetUnfolder]: 381/943 cut-off events. [2021-03-26 14:33:21,420 INFO L130 PetriNetUnfolder]: For 189504/189504 co-relation queries the response was YES. [2021-03-26 14:33:21,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19916 conditions, 943 events. 381/943 cut-off events. For 189504/189504 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6624 event pairs, 16 based on Foata normal form. 2/942 useless extension candidates. Maximal degree in co-relation 19679. Up to 759 conditions per place. [2021-03-26 14:33:21,437 INFO L132 encePairwiseOnDemand]: 140/150 looper letters, 414 selfloop transitions, 22 changer transitions 0/441 dead transitions. [2021-03-26 14:33:21,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 441 transitions, 13585 flow [2021-03-26 14:33:21,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:33:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:33:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 232 transitions. [2021-03-26 14:33:21,438 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1406060606060606 [2021-03-26 14:33:21,438 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 232 transitions. [2021-03-26 14:33:21,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 232 transitions. [2021-03-26 14:33:21,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:21,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 232 transitions. [2021-03-26 14:33:21,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.09090909090909) internal successors, (232), 11 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:21,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:21,439 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:21,439 INFO L185 Difference]: Start difference. First operand has 469 places, 431 transitions, 11885 flow. Second operand 11 states and 232 transitions. [2021-03-26 14:33:21,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 441 transitions, 13585 flow [2021-03-26 14:33:22,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 441 transitions, 12143 flow, removed 714 selfloop flow, removed 4 redundant places. [2021-03-26 14:33:22,497 INFO L241 Difference]: Finished difference. Result has 476 places, 433 transitions, 10609 flow [2021-03-26 14:33:22,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10525, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10609, PETRI_PLACES=476, PETRI_TRANSITIONS=433} [2021-03-26 14:33:22,497 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 460 predicate places. [2021-03-26 14:33:22,497 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:22,497 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 433 transitions, 10609 flow [2021-03-26 14:33:22,497 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 433 transitions, 10609 flow [2021-03-26 14:33:22,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 476 places, 433 transitions, 10609 flow [2021-03-26 14:33:22,696 INFO L129 PetriNetUnfolder]: 378/938 cut-off events. [2021-03-26 14:33:22,696 INFO L130 PetriNetUnfolder]: For 180175/180203 co-relation queries the response was YES. [2021-03-26 14:33:22,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18250 conditions, 938 events. 378/938 cut-off events. For 180175/180203 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6670 event pairs, 12 based on Foata normal form. 3/937 useless extension candidates. Maximal degree in co-relation 18017. Up to 547 conditions per place. [2021-03-26 14:33:22,716 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 14:33:22,737 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:22,737 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:22,737 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 240 [2021-03-26 14:33:22,737 INFO L480 AbstractCegarLoop]: Abstraction has has 476 places, 433 transitions, 10609 flow [2021-03-26 14:33:22,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:22,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:22,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:22,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable644 [2021-03-26 14:33:22,938 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:22,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2130677881, now seen corresponding path program 1 times [2021-03-26 14:33:22,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:22,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995953382] [2021-03-26 14:33:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:22,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:22,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:22,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:22,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:22,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:22,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 14:33:22,979 INFO L142 QuantifierPusher]: treesize reduction 125, result has 30.2 percent of original size [2021-03-26 14:33:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 14:33:23,019 INFO L142 QuantifierPusher]: treesize reduction 201, result has 19.3 percent of original size [2021-03-26 14:33:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:33:23,048 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:33:23,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:33:23,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:33:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:23,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995953382] [2021-03-26 14:33:23,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014003994] [2021-03-26 14:33:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:33:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:23,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-26 14:33:23,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:23,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:23,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:23,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:23,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,127 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:23,127 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:23,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:23,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 14:33:23,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:33:23,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:33:23,130 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-26 14:33:23,130 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:23,131 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,131 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:33:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:23,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:23,158 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-26 14:33:23,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:33:23,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:23,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:23,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,161 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:23,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,162 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:23,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:23,195 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.9 percent of original size [2021-03-26 14:33:23,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:23,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 14:33:23,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 14:33:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 14:33:23,199 INFO L142 QuantifierPusher]: treesize reduction 46, result has 76.6 percent of original size [2021-03-26 14:33:23,200 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-26 14:33:23,201 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-26 14:33:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 14:33:23,325 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-03-26 14:33:23,326 INFO L142 QuantifierPusher]: treesize reduction 10, result has 94.3 percent of original size [2021-03-26 14:33:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:23,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-03-26 14:33:23,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-03-26 14:33:23,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-03-26 14:33:23,332 INFO L142 QuantifierPusher]: treesize reduction 178, result has 48.6 percent of original size [2021-03-26 14:33:23,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,334 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:33:23,335 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:23,335 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,336 INFO L142 QuantifierPusher]: treesize reduction 151, result has 44.5 percent of original size [2021-03-26 14:33:23,336 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:23,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,338 INFO L142 QuantifierPusher]: treesize reduction 115, result has 46.5 percent of original size [2021-03-26 14:33:23,338 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:33:23,338 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,339 INFO L142 QuantifierPusher]: treesize reduction 80, result has 49.7 percent of original size [2021-03-26 14:33:23,341 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 14:33:23,341 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,342 INFO L142 QuantifierPusher]: treesize reduction 52, result has 37.3 percent of original size [2021-03-26 14:33:23,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:23,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:23,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:23,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:23,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:23,370 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-03-26 14:33:23,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 14:33:23,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:23,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:23,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:33:23,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 14:33:23,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:23,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:23,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 14:33:23,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072300524] [2021-03-26 14:33:23,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 14:33:23,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:23,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 14:33:23,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-26 14:33:23,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 150 [2021-03-26 14:33:23,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 433 transitions, 10609 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:33:23,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:23,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 150 [2021-03-26 14:33:23,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:24,652 INFO L129 PetriNetUnfolder]: 382/965 cut-off events. [2021-03-26 14:33:24,652 INFO L130 PetriNetUnfolder]: For 187478/187488 co-relation queries the response was YES. [2021-03-26 14:33:24,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19589 conditions, 965 events. 382/965 cut-off events. For 187478/187488 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6909 event pairs, 18 based on Foata normal form. 10/971 useless extension candidates. Maximal degree in co-relation 19351. Up to 798 conditions per place. [2021-03-26 14:33:24,669 INFO L132 encePairwiseOnDemand]: 135/150 looper letters, 405 selfloop transitions, 31 changer transitions 5/445 dead transitions. [2021-03-26 14:33:24,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 445 transitions, 12088 flow [2021-03-26 14:33:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 14:33:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 14:33:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 210 transitions. [2021-03-26 14:33:24,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12727272727272726 [2021-03-26 14:33:24,670 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 210 transitions. [2021-03-26 14:33:24,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 210 transitions. [2021-03-26 14:33:24,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:24,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 210 transitions. [2021-03-26 14:33:24,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:24,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:24,671 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:24,671 INFO L185 Difference]: Start difference. First operand has 476 places, 433 transitions, 10609 flow. Second operand 11 states and 210 transitions. [2021-03-26 14:33:24,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 445 transitions, 12088 flow [2021-03-26 14:33:25,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 445 transitions, 12012 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-26 14:33:25,683 INFO L241 Difference]: Finished difference. Result has 480 places, 435 transitions, 10945 flow [2021-03-26 14:33:25,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10533, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10945, PETRI_PLACES=480, PETRI_TRANSITIONS=435} [2021-03-26 14:33:25,683 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 464 predicate places. [2021-03-26 14:33:25,683 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:25,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 435 transitions, 10945 flow [2021-03-26 14:33:25,684 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 435 transitions, 10945 flow [2021-03-26 14:33:25,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 435 transitions, 10945 flow [2021-03-26 14:33:25,890 INFO L129 PetriNetUnfolder]: 379/949 cut-off events. [2021-03-26 14:33:25,890 INFO L130 PetriNetUnfolder]: For 191864/191924 co-relation queries the response was YES. [2021-03-26 14:33:25,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18855 conditions, 949 events. 379/949 cut-off events. For 191864/191924 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6796 event pairs, 13 based on Foata normal form. 1/946 useless extension candidates. Maximal degree in co-relation 18618. Up to 556 conditions per place. [2021-03-26 14:33:25,912 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 14:33:25,942 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:25,942 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:25,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-26 14:33:25,942 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 435 transitions, 10945 flow [2021-03-26 14:33:25,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 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) [2021-03-26 14:33:25,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:25,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:26,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:26,143 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:26,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:26,143 INFO L82 PathProgramCache]: Analyzing trace with hash 174025440, now seen corresponding path program 1 times [2021-03-26 14:33:26,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:26,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429967109] [2021-03-26 14:33:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:26,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,159 INFO L142 QuantifierPusher]: treesize reduction 60, result has 32.6 percent of original size [2021-03-26 14:33:26,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:33:26,174 INFO L142 QuantifierPusher]: treesize reduction 163, result has 32.4 percent of original size [2021-03-26 14:33:26,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 14:33:26,217 INFO L142 QuantifierPusher]: treesize reduction 85, result has 19.8 percent of original size [2021-03-26 14:33:26,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:26,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:26,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429967109] [2021-03-26 14:33:26,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553694714] [2021-03-26 14:33:26,240 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 [2021-03-26 14:33:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:26,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 14:33:26,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:26,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:26,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:26,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,294 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:26,294 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:26,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:26,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 14:33:26,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 14:33:26,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 14:33:26,300 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-26 14:33:26,300 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:26,301 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,301 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:33:26,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:26,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:26,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 14:33:26,326 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-26 14:33:26,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 14:33:26,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:26,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,329 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:26,329 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,330 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:26,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 14:33:26,362 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.5 percent of original size [2021-03-26 14:33:26,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:33:26,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:33:26,363 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-03-26 14:33:26,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:26,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 14:33:26,390 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 14:33:26,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 14:33:26,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:26,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 14:33:26,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 14:33:26,393 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-26 14:33:26,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:26,397 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:26,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:26,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:26,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:26,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-26 14:33:26,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369808156] [2021-03-26 14:33:26,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 14:33:26,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 14:33:26,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-26 14:33:26,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 150 [2021-03-26 14:33:26,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 435 transitions, 10945 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:33:26,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:26,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 150 [2021-03-26 14:33:26,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:27,104 INFO L129 PetriNetUnfolder]: 383/945 cut-off events. [2021-03-26 14:33:27,105 INFO L130 PetriNetUnfolder]: For 197958/197968 co-relation queries the response was YES. [2021-03-26 14:33:27,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19851 conditions, 945 events. 383/945 cut-off events. For 197958/197968 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6628 event pairs, 16 based on Foata normal form. 8/949 useless extension candidates. Maximal degree in co-relation 19609. Up to 758 conditions per place. [2021-03-26 14:33:27,122 INFO L132 encePairwiseOnDemand]: 140/150 looper letters, 406 selfloop transitions, 23 changer transitions 1/435 dead transitions. [2021-03-26 14:33:27,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 435 transitions, 12196 flow [2021-03-26 14:33:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:33:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:33:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2021-03-26 14:33:27,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15666666666666668 [2021-03-26 14:33:27,124 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 188 transitions. [2021-03-26 14:33:27,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 188 transitions. [2021-03-26 14:33:27,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:27,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 188 transitions. [2021-03-26 14:33:27,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:27,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:27,124 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:27,124 INFO L185 Difference]: Start difference. First operand has 478 places, 435 transitions, 10945 flow. Second operand 8 states and 188 transitions. [2021-03-26 14:33:27,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 435 transitions, 12196 flow [2021-03-26 14:33:28,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 435 transitions, 11930 flow, removed 114 selfloop flow, removed 8 redundant places. [2021-03-26 14:33:28,173 INFO L241 Difference]: Finished difference. Result has 478 places, 430 transitions, 10710 flow [2021-03-26 14:33:28,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10587, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10710, PETRI_PLACES=478, PETRI_TRANSITIONS=430} [2021-03-26 14:33:28,173 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 462 predicate places. [2021-03-26 14:33:28,173 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:28,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 430 transitions, 10710 flow [2021-03-26 14:33:28,173 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 430 transitions, 10710 flow [2021-03-26 14:33:28,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 430 transitions, 10710 flow [2021-03-26 14:33:28,373 INFO L129 PetriNetUnfolder]: 380/936 cut-off events. [2021-03-26 14:33:28,373 INFO L130 PetriNetUnfolder]: For 192871/192931 co-relation queries the response was YES. [2021-03-26 14:33:28,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18774 conditions, 936 events. 380/936 cut-off events. For 192871/192931 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6601 event pairs, 14 based on Foata normal form. 1/933 useless extension candidates. Maximal degree in co-relation 18538. Up to 553 conditions per place. [2021-03-26 14:33:28,392 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 14:33:28,413 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:28,413 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:28,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 240 [2021-03-26 14:33:28,414 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 430 transitions, 10710 flow [2021-03-26 14:33:28,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 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) [2021-03-26 14:33:28,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:28,414 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:28,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable653 [2021-03-26 14:33:28,614 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:28,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1939780821, now seen corresponding path program 1 times [2021-03-26 14:33:28,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:28,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635851720] [2021-03-26 14:33:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:28,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:28,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,633 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.5 percent of original size [2021-03-26 14:33:28,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 14:33:28,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 55.9 percent of original size [2021-03-26 14:33:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:33:28,685 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-26 14:33:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:33:28,707 INFO L142 QuantifierPusher]: treesize reduction 1174, result has 3.0 percent of original size [2021-03-26 14:33:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:33:28,730 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:33:28,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:33:28,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:33:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:28,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635851720] [2021-03-26 14:33:28,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159209256] [2021-03-26 14:33:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 14:33:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-26 14:33:28,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:28,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:28,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:28,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:28,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:28,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:28,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:28,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:28,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:28,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,812 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:28,812 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:28,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:28,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-03-26 14:33:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:33:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 743 [2021-03-26 14:33:28,829 INFO L142 QuantifierPusher]: treesize reduction 11200, result has 9.2 percent of original size [2021-03-26 14:33:28,832 INFO L147 QuantifierPusher]: treesize reduction 24, result has 97.9 percent of original size 1094 [2021-03-26 14:33:28,835 INFO L142 QuantifierPusher]: treesize reduction 24, result has 97.9 percent of original size [2021-03-26 14:33:28,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1094 [2021-03-26 14:33:29,821 WARN L205 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 90 [2021-03-26 14:33:29,823 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.8 percent of original size [2021-03-26 14:33:29,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:29,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-03-26 14:33:29,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-03-26 14:33:29,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:29,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 445 [2021-03-26 14:33:29,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-03-26 14:33:29,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:29,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,837 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 3, 2, 2, 2, 1] term [2021-03-26 14:33:29,837 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,837 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,838 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:29,838 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,839 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,839 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 2, 2, 2, 1] term [2021-03-26 14:33:29,839 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,840 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,841 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 14:33:29,841 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,842 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,842 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:29,842 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,843 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,844 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:29,844 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,845 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,845 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 2, 2, 1] term [2021-03-26 14:33:29,846 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 14:33:29,846 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,847 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:29,847 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,848 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,848 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 14:33:29,849 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,849 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,852 INFO L147 QuantifierPusher]: treesize reduction -8, result has 102.7 percent of original size 304 [2021-03-26 14:33:29,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:29,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,853 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:29,854 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:29,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:29,855 INFO L142 QuantifierPusher]: treesize reduction 73, result has 49.3 percent of original size [2021-03-26 14:33:29,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 14:33:29,860 INFO L147 QuantifierPusher]: treesize reduction -10, result has 103.6 percent of original size 290 [2021-03-26 14:33:29,861 INFO L142 QuantifierPusher]: treesize reduction -10, result has 103.6 percent of original size [2021-03-26 14:33:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-03-26 14:33:30,116 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-26 14:33:30,118 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.7 percent of original size [2021-03-26 14:33:30,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-03-26 14:33:30,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:30,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-03-26 14:33:30,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,124 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:30,125 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,125 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-26 14:33:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-26 14:33:30,276 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-03-26 14:33:30,278 INFO L142 QuantifierPusher]: treesize reduction 13, result has 96.1 percent of original size [2021-03-26 14:33:30,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-03-26 14:33:30,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-03-26 14:33:30,283 INFO L142 QuantifierPusher]: treesize reduction 25, result has 93.3 percent of original size [2021-03-26 14:33:30,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-03-26 14:33:30,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-03-26 14:33:30,482 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-03-26 14:33:30,484 INFO L142 QuantifierPusher]: treesize reduction 184, result has 53.5 percent of original size [2021-03-26 14:33:30,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:30,486 INFO L147 QuantifierPusher]: treesize reduction 42, result has 79.8 percent of original size 166 [2021-03-26 14:33:30,488 INFO L142 QuantifierPusher]: treesize reduction 42, result has 79.9 percent of original size [2021-03-26 14:33:30,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 95.8 percent of original size [2021-03-26 14:33:30,490 INFO L147 QuantifierPusher]: treesize reduction 44, result has 78.7 percent of original size 163 [2021-03-26 14:33:30,491 INFO L147 QuantifierPusher]: treesize reduction 44, result has 78.8 percent of original size 164 [2021-03-26 14:33:30,493 INFO L142 QuantifierPusher]: treesize reduction 168, result has 44.2 percent of original size [2021-03-26 14:33:30,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,495 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:33:30,496 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:30,497 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,498 INFO L142 QuantifierPusher]: treesize reduction 84, result has 60.9 percent of original size [2021-03-26 14:33:30,502 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:30,503 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,504 INFO L142 QuantifierPusher]: treesize reduction 109, result has 30.1 percent of original size [2021-03-26 14:33:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 14:33:30,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:30,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:30,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:33:30,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:30,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:30,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 14:33:30,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:30,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,571 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:33:30,571 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:30,572 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,573 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 14:33:30,574 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 14:33:30,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:30,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:30,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-26 14:33:30,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333705296] [2021-03-26 14:33:30,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-26 14:33:30,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:30,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-26 14:33:30,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-03-26 14:33:30,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 150 [2021-03-26 14:33:30,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 430 transitions, 10710 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:30,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:30,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 150 [2021-03-26 14:33:30,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:31,058 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-03-26 14:33:31,782 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2021-03-26 14:33:32,535 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2021-03-26 14:33:33,039 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-03-26 14:33:33,513 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-26 14:33:33,686 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-03-26 14:33:34,079 INFO L129 PetriNetUnfolder]: 393/971 cut-off events. [2021-03-26 14:33:34,079 INFO L130 PetriNetUnfolder]: For 204423/204433 co-relation queries the response was YES. [2021-03-26 14:33:34,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20469 conditions, 971 events. 393/971 cut-off events. For 204423/204433 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6856 event pairs, 18 based on Foata normal form. 7/974 useless extension candidates. Maximal degree in co-relation 20228. Up to 819 conditions per place. [2021-03-26 14:33:34,096 INFO L132 encePairwiseOnDemand]: 137/150 looper letters, 409 selfloop transitions, 38 changer transitions 5/456 dead transitions. [2021-03-26 14:33:34,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 456 transitions, 13064 flow [2021-03-26 14:33:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 14:33:34,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 14:33:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 296 transitions. [2021-03-26 14:33:34,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10962962962962963 [2021-03-26 14:33:34,097 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 296 transitions. [2021-03-26 14:33:34,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 296 transitions. [2021-03-26 14:33:34,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:34,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 296 transitions. [2021-03-26 14:33:34,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 16.444444444444443) internal successors, (296), 18 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:34,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 150.0) internal successors, (2850), 19 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:34,098 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 150.0) internal successors, (2850), 19 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:34,098 INFO L185 Difference]: Start difference. First operand has 477 places, 430 transitions, 10710 flow. Second operand 18 states and 296 transitions. [2021-03-26 14:33:34,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 456 transitions, 13064 flow [2021-03-26 14:33:35,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 456 transitions, 12971 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-03-26 14:33:35,050 INFO L241 Difference]: Finished difference. Result has 493 places, 449 transitions, 12064 flow [2021-03-26 14:33:35,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10624, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12064, PETRI_PLACES=493, PETRI_TRANSITIONS=449} [2021-03-26 14:33:35,051 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 477 predicate places. [2021-03-26 14:33:35,051 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:35,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 493 places, 449 transitions, 12064 flow [2021-03-26 14:33:35,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 493 places, 449 transitions, 12064 flow [2021-03-26 14:33:35,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 488 places, 449 transitions, 12064 flow [2021-03-26 14:33:35,267 INFO L129 PetriNetUnfolder]: 390/959 cut-off events. [2021-03-26 14:33:35,267 INFO L130 PetriNetUnfolder]: For 208297/208357 co-relation queries the response was YES. [2021-03-26 14:33:35,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19655 conditions, 959 events. 390/959 cut-off events. For 208297/208357 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6802 event pairs, 13 based on Foata normal form. 1/956 useless extension candidates. Maximal degree in co-relation 19414. Up to 569 conditions per place. [2021-03-26 14:33:35,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 14:33:35,604 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 14:33:36,307 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:36,308 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:33:36,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1257 [2021-03-26 14:33:36,308 INFO L480 AbstractCegarLoop]: Abstraction has has 488 places, 449 transitions, 12111 flow [2021-03-26 14:33:36,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:36,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:36,308 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:36,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable656 [2021-03-26 14:33:36,509 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1185494373, now seen corresponding path program 2 times [2021-03-26 14:33:36,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:36,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769011893] [2021-03-26 14:33:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:36,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:36,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,529 INFO L142 QuantifierPusher]: treesize reduction 129, result has 35.5 percent of original size [2021-03-26 14:33:36,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 14:33:36,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 14:33:36,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 14:33:36,619 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 14:33:36,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:36,642 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 14:33:36,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 14:33:36,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 14:33:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:36,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769011893] [2021-03-26 14:33:36,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100026266] [2021-03-26 14:33:36,668 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 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 [2021-03-26 14:33:36,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 14:33:36,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 14:33:36,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-26 14:33:36,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:36,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:36,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:36,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:36,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,725 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:36,725 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:36,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:36,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 14:33:36,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-03-26 14:33:36,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 14:33:36,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 860 [2021-03-26 14:33:36,739 INFO L142 QuantifierPusher]: treesize reduction 12204, result has 1.3 percent of original size [2021-03-26 14:33:36,741 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size 146 [2021-03-26 14:33:36,741 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size [2021-03-26 14:33:36,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-03-26 14:33:36,859 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2021-03-26 14:33:36,860 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.5 percent of original size [2021-03-26 14:33:36,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-26 14:33:36,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:36,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-26 14:33:36,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,864 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:36,865 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,865 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:36,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:36,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:33:36,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:33:36,940 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.9 percent of original size [2021-03-26 14:33:36,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-26 14:33:36,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:36,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-26 14:33:36,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,944 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:36,944 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:36,944 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 14:33:36,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:36,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:33:36,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:36,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 14:33:37,023 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.2 percent of original size [2021-03-26 14:33:37,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-03-26 14:33:37,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-03-26 14:33:37,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-03-26 14:33:37,029 INFO L142 QuantifierPusher]: treesize reduction 214, result has 53.2 percent of original size [2021-03-26 14:33:37,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,031 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 14:33:37,031 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:33:37,032 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,033 INFO L142 QuantifierPusher]: treesize reduction 191, result has 56.7 percent of original size [2021-03-26 14:33:37,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 14:33:37,034 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,035 INFO L142 QuantifierPusher]: treesize reduction 192, result has 48.1 percent of original size [2021-03-26 14:33:37,036 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 14:33:37,036 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,037 INFO L142 QuantifierPusher]: treesize reduction 172, result has 47.7 percent of original size [2021-03-26 14:33:37,038 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:37,038 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,039 INFO L142 QuantifierPusher]: treesize reduction 132, result has 51.6 percent of original size [2021-03-26 14:33:37,041 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:37,041 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,042 INFO L142 QuantifierPusher]: treesize reduction 125, result has 27.7 percent of original size [2021-03-26 14:33:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 14:33:37,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 14:33:37,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 14:33:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:33:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:33:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 14:33:37,090 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-03-26 14:33:37,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:33:37,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:33:37,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 14:33:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 14:33:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-26 14:33:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,096 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 1] term [2021-03-26 14:33:37,096 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:37,097 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,097 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 14:33:37,098 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:37,098 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,099 INFO L147 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size 46 [2021-03-26 14:33:37,099 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:37,099 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,100 INFO L142 QuantifierPusher]: treesize reduction 110, result has 23.6 percent of original size [2021-03-26 14:33:37,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:33:37,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:33:37,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 14:33:37,131 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-03-26 14:33:37,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 14:33:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 14:33:37,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:33:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 14:33:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:37,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 14:33:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:37,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:37,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-26 14:33:37,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669771425] [2021-03-26 14:33:37,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-26 14:33:37,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:37,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-26 14:33:37,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-03-26 14:33:37,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 154 [2021-03-26 14:33:37,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 449 transitions, 12111 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:37,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:37,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 154 [2021-03-26 14:33:37,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:37,710 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-26 14:33:37,860 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-26 14:33:38,458 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-26 14:33:38,753 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2021-03-26 14:33:39,031 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2021-03-26 14:33:39,226 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-03-26 14:33:39,357 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-26 14:33:39,742 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-03-26 14:33:39,925 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-26 14:33:40,046 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-03-26 14:33:40,389 INFO L129 PetriNetUnfolder]: 416/1035 cut-off events. [2021-03-26 14:33:40,389 INFO L130 PetriNetUnfolder]: For 227284/227296 co-relation queries the response was YES. [2021-03-26 14:33:40,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22730 conditions, 1035 events. 416/1035 cut-off events. For 227284/227296 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 7490 event pairs, 18 based on Foata normal form. 11/1042 useless extension candidates. Maximal degree in co-relation 22484. Up to 832 conditions per place. [2021-03-26 14:33:40,407 INFO L132 encePairwiseOnDemand]: 136/154 looper letters, 420 selfloop transitions, 64 changer transitions 9/497 dead transitions. [2021-03-26 14:33:40,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 497 transitions, 16460 flow [2021-03-26 14:33:40,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-26 14:33:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-03-26 14:33:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 392 transitions. [2021-03-26 14:33:40,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10181818181818182 [2021-03-26 14:33:40,409 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 392 transitions. [2021-03-26 14:33:40,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 392 transitions. [2021-03-26 14:33:40,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:40,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 392 transitions. [2021-03-26 14:33:40,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 15.68) internal successors, (392), 25 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) [2021-03-26 14:33:40,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 154.0) internal successors, (4004), 26 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:40,411 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 154.0) internal successors, (4004), 26 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:40,411 INFO L185 Difference]: Start difference. First operand has 488 places, 449 transitions, 12111 flow. Second operand 25 states and 392 transitions. [2021-03-26 14:33:40,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 497 transitions, 16460 flow [2021-03-26 14:33:41,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 497 transitions, 14833 flow, removed 806 selfloop flow, removed 4 redundant places. [2021-03-26 14:33:41,488 INFO L241 Difference]: Finished difference. Result has 513 places, 484 transitions, 13632 flow [2021-03-26 14:33:41,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=10892, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=13632, PETRI_PLACES=513, PETRI_TRANSITIONS=484} [2021-03-26 14:33:41,489 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 497 predicate places. [2021-03-26 14:33:41,489 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:41,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 513 places, 484 transitions, 13632 flow [2021-03-26 14:33:41,489 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 513 places, 484 transitions, 13632 flow [2021-03-26 14:33:41,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 484 transitions, 13632 flow [2021-03-26 14:33:41,746 INFO L129 PetriNetUnfolder]: 409/1015 cut-off events. [2021-03-26 14:33:41,746 INFO L130 PetriNetUnfolder]: For 220083/220145 co-relation queries the response was YES. [2021-03-26 14:33:41,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 1015 events. 409/1015 cut-off events. For 220083/220145 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7354 event pairs, 13 based on Foata normal form. 1/1012 useless extension candidates. Maximal degree in co-relation 20741. Up to 597 conditions per place. [2021-03-26 14:33:41,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 14:33:41,791 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:41,791 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:33:41,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 302 [2021-03-26 14:33:41,792 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 484 transitions, 13632 flow [2021-03-26 14:33:41,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 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) [2021-03-26 14:33:41,792 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:41,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:41,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:41,992 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:41,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:41,992 INFO L82 PathProgramCache]: Analyzing trace with hash -11086500, now seen corresponding path program 1 times [2021-03-26 14:33:41,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:41,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076650099] [2021-03-26 14:33:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:42,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:42,023 INFO L142 QuantifierPusher]: treesize reduction 4572, result has 10.9 percent of original size [2021-03-26 14:33:42,026 INFO L147 QuantifierPusher]: treesize reduction 405, result has 27.8 percent of original size 156 [2021-03-26 14:33:42,185 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 37 [2021-03-26 14:33:42,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:33:42,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:42,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:42,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076650099] [2021-03-26 14:33:42,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290655693] [2021-03-26 14:33:42,205 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 [2021-03-26 14:33:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:42,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 14:33:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:42,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:42,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:42,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:42,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:42,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:42,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:42,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:42,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,262 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:42,263 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:42,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-03-26 14:33:42,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 564 [2021-03-26 14:33:42,270 INFO L142 QuantifierPusher]: treesize reduction 6891, result has 1.6 percent of original size [2021-03-26 14:33:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:33:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 14:33:42,358 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.8 percent of original size [2021-03-26 14:33:42,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1268 [2021-03-26 14:33:42,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:42,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:42,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2661 [2021-03-26 14:33:42,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2662 [2021-03-26 14:33:45,054 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 1897 DAG size of output: 47 [2021-03-26 14:33:45,055 INFO L142 QuantifierPusher]: treesize reduction 13085765, result has 0.0 percent of original size [2021-03-26 14:33:45,056 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:45,056 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,058 INFO L142 QuantifierPusher]: treesize reduction 109, result has 62.8 percent of original size [2021-03-26 14:33:45,058 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 14:33:45,059 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,060 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.1 percent of original size [2021-03-26 14:33:45,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:45,061 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,061 INFO L142 QuantifierPusher]: treesize reduction 106, result has 46.2 percent of original size [2021-03-26 14:33:45,062 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:45,062 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,063 INFO L142 QuantifierPusher]: treesize reduction 80, result has 50.3 percent of original size [2021-03-26 14:33:45,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:33:45,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:45,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 14:33:45,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:45,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:45,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:45,093 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-26 14:33:45,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:45,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 14:33:45,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:45,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:45,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 14:33:45,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:45,100 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:45,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:45,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:45,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:45,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:33:45,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591818815] [2021-03-26 14:33:45,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:33:45,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:33:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:33:45,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 154 [2021-03-26 14:33:45,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 484 transitions, 13632 flow. Second operand has 8 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) [2021-03-26 14:33:45,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:45,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 154 [2021-03-26 14:33:45,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:45,809 INFO L129 PetriNetUnfolder]: 410/1014 cut-off events. [2021-03-26 14:33:45,809 INFO L130 PetriNetUnfolder]: For 225976/225988 co-relation queries the response was YES. [2021-03-26 14:33:45,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21682 conditions, 1014 events. 410/1014 cut-off events. For 225976/225988 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7249 event pairs, 19 based on Foata normal form. 13/1023 useless extension candidates. Maximal degree in co-relation 21431. Up to 821 conditions per place. [2021-03-26 14:33:45,827 INFO L132 encePairwiseOnDemand]: 140/154 looper letters, 452 selfloop transitions, 32 changer transitions 0/489 dead transitions. [2021-03-26 14:33:45,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 489 transitions, 14713 flow [2021-03-26 14:33:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 14:33:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 14:33:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 192 transitions. [2021-03-26 14:33:45,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15584415584415584 [2021-03-26 14:33:45,828 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 192 transitions. [2021-03-26 14:33:45,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 192 transitions. [2021-03-26 14:33:45,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:45,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 192 transitions. [2021-03-26 14:33:45,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:45,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:45,829 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:45,829 INFO L185 Difference]: Start difference. First operand has 511 places, 484 transitions, 13632 flow. Second operand 8 states and 192 transitions. [2021-03-26 14:33:45,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 489 transitions, 14713 flow [2021-03-26 14:33:46,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 489 transitions, 12757 flow, removed 962 selfloop flow, removed 9 redundant places. [2021-03-26 14:33:46,955 INFO L241 Difference]: Finished difference. Result has 507 places, 478 transitions, 11586 flow [2021-03-26 14:33:46,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=11318, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11586, PETRI_PLACES=507, PETRI_TRANSITIONS=478} [2021-03-26 14:33:46,956 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 491 predicate places. [2021-03-26 14:33:46,956 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:46,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 478 transitions, 11586 flow [2021-03-26 14:33:46,956 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 478 transitions, 11586 flow [2021-03-26 14:33:46,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 478 transitions, 11586 flow [2021-03-26 14:33:47,185 INFO L129 PetriNetUnfolder]: 407/1012 cut-off events. [2021-03-26 14:33:47,186 INFO L130 PetriNetUnfolder]: For 212936/212998 co-relation queries the response was YES. [2021-03-26 14:33:47,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19822 conditions, 1012 events. 407/1012 cut-off events. For 212936/212998 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7328 event pairs, 17 based on Foata normal form. 1/1008 useless extension candidates. Maximal degree in co-relation 19577. Up to 566 conditions per place. [2021-03-26 14:33:47,209 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 14:33:48,030 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-26 14:33:48,181 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2021-03-26 14:33:48,322 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2021-03-26 14:33:48,465 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-26 14:33:48,619 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2021-03-26 14:33:48,714 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:48,714 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 14:33:48,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1759 [2021-03-26 14:33:48,715 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 478 transitions, 11643 flow [2021-03-26 14:33:48,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:33:48,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:48,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:48,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 14:33:48,915 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:48,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:48,916 INFO L82 PathProgramCache]: Analyzing trace with hash -466574131, now seen corresponding path program 1 times [2021-03-26 14:33:48,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:48,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879075697] [2021-03-26 14:33:48,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:48,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:48,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:48,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:48,966 INFO L142 QuantifierPusher]: treesize reduction 17342, result has 4.0 percent of original size [2021-03-26 14:33:48,969 INFO L147 QuantifierPusher]: treesize reduction 549, result has 24.7 percent of original size 180 [2021-03-26 14:33:49,153 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 35 [2021-03-26 14:33:49,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 14:33:49,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:49,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:49,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879075697] [2021-03-26 14:33:49,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398507086] [2021-03-26 14:33:49,172 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 [2021-03-26 14:33:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:49,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 14:33:49,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:49,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:49,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:49,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:49,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:49,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:49,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:49,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:49,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:49,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,247 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:49,247 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:49,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:49,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-03-26 14:33:49,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-26 14:33:49,254 INFO L142 QuantifierPusher]: treesize reduction 1576, result has 4.3 percent of original size [2021-03-26 14:33:49,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:33:49,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 14:33:49,290 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.8 percent of original size [2021-03-26 14:33:49,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1246 [2021-03-26 14:33:49,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:49,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:49,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2639 [2021-03-26 14:33:49,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2640 [2021-03-26 14:33:51,991 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 1909 DAG size of output: 42 [2021-03-26 14:33:51,992 INFO L142 QuantifierPusher]: treesize reduction 13085765, result has 0.0 percent of original size [2021-03-26 14:33:51,992 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:51,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:51,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:52,000 INFO L142 QuantifierPusher]: treesize reduction 90, result has 63.9 percent of original size [2021-03-26 14:33:52,003 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 14:33:52,003 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:52,004 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.4 percent of original size [2021-03-26 14:33:52,005 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:52,005 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:52,006 INFO L142 QuantifierPusher]: treesize reduction 30, result has 77.1 percent of original size [2021-03-26 14:33:52,006 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 14:33:52,007 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:52,007 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-26 14:33:52,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:33:52,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 14:33:52,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:52,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:33:52,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:33:52,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 14:33:52,036 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 14:33:52,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:52,040 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 14:33:52,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:52,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:52,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 14:33:52,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 14:33:52,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541493743] [2021-03-26 14:33:52,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 14:33:52,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:33:52,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 14:33:52,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 14:33:52,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 160 [2021-03-26 14:33:52,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 478 transitions, 11643 flow. Second operand has 8 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) [2021-03-26 14:33:52,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:33:52,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 160 [2021-03-26 14:33:52,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:33:52,713 INFO L129 PetriNetUnfolder]: 415/1022 cut-off events. [2021-03-26 14:33:52,713 INFO L130 PetriNetUnfolder]: For 224896/224908 co-relation queries the response was YES. [2021-03-26 14:33:52,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21368 conditions, 1022 events. 415/1022 cut-off events. For 224896/224908 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7321 event pairs, 18 based on Foata normal form. 9/1024 useless extension candidates. Maximal degree in co-relation 21118. Up to 830 conditions per place. [2021-03-26 14:33:52,730 INFO L132 encePairwiseOnDemand]: 144/160 looper letters, 452 selfloop transitions, 25 changer transitions 0/482 dead transitions. [2021-03-26 14:33:52,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 482 transitions, 13092 flow [2021-03-26 14:33:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 14:33:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 14:33:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2021-03-26 14:33:52,732 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16160714285714287 [2021-03-26 14:33:52,732 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 181 transitions. [2021-03-26 14:33:52,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 181 transitions. [2021-03-26 14:33:52,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:33:52,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 181 transitions. [2021-03-26 14:33:52,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:52,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:52,732 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 14:33:52,732 INFO L185 Difference]: Start difference. First operand has 507 places, 478 transitions, 11643 flow. Second operand 7 states and 181 transitions. [2021-03-26 14:33:52,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 482 transitions, 13092 flow [2021-03-26 14:33:53,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 482 transitions, 12884 flow, removed 74 selfloop flow, removed 6 redundant places. [2021-03-26 14:33:53,972 INFO L241 Difference]: Finished difference. Result has 506 places, 477 transitions, 11554 flow [2021-03-26 14:33:53,972 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=11366, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11554, PETRI_PLACES=506, PETRI_TRANSITIONS=477} [2021-03-26 14:33:53,972 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 490 predicate places. [2021-03-26 14:33:53,972 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:33:53,972 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 506 places, 477 transitions, 11554 flow [2021-03-26 14:33:53,972 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 506 places, 477 transitions, 11554 flow [2021-03-26 14:33:53,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 477 transitions, 11554 flow [2021-03-26 14:33:54,247 INFO L129 PetriNetUnfolder]: 412/1019 cut-off events. [2021-03-26 14:33:54,248 INFO L130 PetriNetUnfolder]: For 223735/223797 co-relation queries the response was YES. [2021-03-26 14:33:54,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20371 conditions, 1019 events. 412/1019 cut-off events. For 223735/223797 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 7387 event pairs, 18 based on Foata normal form. 1/1013 useless extension candidates. Maximal degree in co-relation 20125. Up to 578 conditions per place. [2021-03-26 14:33:54,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 14:33:54,462 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:33:54,463 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 14:33:54,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 491 [2021-03-26 14:33:54,463 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 477 transitions, 11562 flow [2021-03-26 14:33:54,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 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) [2021-03-26 14:33:54,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:33:54,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:33:54,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable687 [2021-03-26 14:33:54,664 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:33:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:33:54,664 INFO L82 PathProgramCache]: Analyzing trace with hash 467733559, now seen corresponding path program 1 times [2021-03-26 14:33:54,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:33:54,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499449846] [2021-03-26 14:33:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:33:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:54,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,771 INFO L142 QuantifierPusher]: treesize reduction 259046, result has 0.1 percent of original size [2021-03-26 14:33:54,772 INFO L147 QuantifierPusher]: treesize reduction 127, result has 62.8 percent of original size 214 [2021-03-26 14:33:54,884 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2021-03-26 14:33:54,885 INFO L142 QuantifierPusher]: treesize reduction 67, result has 25.6 percent of original size [2021-03-26 14:33:54,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 14:33:54,898 INFO L142 QuantifierPusher]: treesize reduction 67, result has 23.9 percent of original size [2021-03-26 14:33:54,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 14:33:54,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 14:33:54,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 14:33:54,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499449846] [2021-03-26 14:33:54,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605787148] [2021-03-26 14:33:54,920 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 [2021-03-26 14:33:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:33:54,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 14:33:54,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 14:33:54,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:33:54,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:54,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 14:33:54,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,979 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 14:33:54,979 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 14:33:54,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 14:33:54,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-03-26 14:33:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 14:33:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-03-26 14:33:54,985 INFO L142 QuantifierPusher]: treesize reduction 93, result has 61.6 percent of original size [2021-03-26 14:33:54,985 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:54,986 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,986 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:54,987 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,987 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 14:33:54,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 14:33:54,988 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 14:33:54,989 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 14:33:54,989 INFO L142 QuantifierPusher]: treesize reduction 52, result has 54.0 percent of original size [2021-03-26 14:33:54,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 14:33:54,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 14:33:54,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 14:33:54,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:54,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 14:33:55,123 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-03-26 14:33:55,124 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.9 percent of original size [2021-03-26 14:33:55,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4984 [2021-03-26 14:33:55,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:33:55,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9183 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown