/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:56:46,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:56:46,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 08:56:46,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:56:46,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:56:46,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:56:46,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:56:46,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:56:46,406 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:56:46,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:56:46,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:56:46,406 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:56:46,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:56:46,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:56:46,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:56:46,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:56:46,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:56:46,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:56:46,408 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:56:46,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:56:46,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:56:46,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:56:46,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:56:46,412 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:56:46,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:56:46,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:56:46,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:56:46,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:56:46,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:56:46,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:56:46,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:56:46,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:56:46,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:56:46,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:56:46,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:56:46,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:56:46,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:56:46,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:56:46,612 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:56:46,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-11-30 08:56:47,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:56:47,828 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:56:47,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-11-30 08:56:47,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b050c65/35a282e2444a4d738a95076c0e2e8daf/FLAG0eb22f384 [2023-11-30 08:56:47,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b050c65/35a282e2444a4d738a95076c0e2e8daf [2023-11-30 08:56:47,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:56:47,853 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:56:47,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:56:47,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:56:47,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:56:47,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:56:47" (1/1) ... [2023-11-30 08:56:47,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235ffcd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:47, skipping insertion in model container [2023-11-30 08:56:47,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:56:47" (1/1) ... [2023-11-30 08:56:47,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:56:48,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:56:48,017 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:56:48,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:56:48,053 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:56:48,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48 WrapperNode [2023-11-30 08:56:48,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:56:48,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:56:48,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:56:48,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:56:48,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,089 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 218 [2023-11-30 08:56:48,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:56:48,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:56:48,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:56:48,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:56:48,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:56:48,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:56:48,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:56:48,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:56:48,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (1/1) ... [2023-11-30 08:56:48,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:56:48,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:48,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 08:56:48,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 08:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 08:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:56:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 08:56:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:56:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:56:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 08:56:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:56:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:56:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:56:48,180 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 08:56:48,268 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:56:48,269 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:56:48,554 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:56:48,565 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:56:48,565 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-30 08:56:48,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:56:48 BoogieIcfgContainer [2023-11-30 08:56:48,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:56:48,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:56:48,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:56:48,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:56:48,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:56:47" (1/3) ... [2023-11-30 08:56:48,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:56:48, skipping insertion in model container [2023-11-30 08:56:48,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:56:48" (2/3) ... [2023-11-30 08:56:48,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:56:48, skipping insertion in model container [2023-11-30 08:56:48,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:56:48" (3/3) ... [2023-11-30 08:56:48,571 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2023-11-30 08:56:48,583 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:56:48,583 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-30 08:56:48,583 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:56:48,646 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:56:48,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 350 transitions, 714 flow [2023-11-30 08:56:48,753 INFO L124 PetriNetUnfolderBase]: 27/348 cut-off events. [2023-11-30 08:56:48,753 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:56:48,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 348 events. 27/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 492 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-30 08:56:48,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 350 transitions, 714 flow [2023-11-30 08:56:48,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 321 transitions, 654 flow [2023-11-30 08:56:48,768 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:56:48,772 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@681facef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:56:48,772 INFO L363 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-30 08:56:48,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:56:48,777 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2023-11-30 08:56:48,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:56:48,778 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:48,778 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:48,778 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:48,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 704280866, now seen corresponding path program 1 times [2023-11-30 08:56:48,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:48,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318925114] [2023-11-30 08:56:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:48,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:48,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:48,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734682409] [2023-11-30 08:56:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:48,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:48,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:48,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:48,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 08:56:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:48,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:56:48,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:49,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318925114] [2023-11-30 08:56:49,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734682409] [2023-11-30 08:56:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734682409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:49,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:49,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 08:56:49,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934450072] [2023-11-30 08:56:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:49,188 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 08:56:49,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 08:56:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-30 08:56:49,236 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 350 [2023-11-30 08:56:49,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 321 transitions, 654 flow. Second operand has 9 states, 9 states have (on average 218.33333333333334) internal successors, (1965), 9 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:49,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:49,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 350 [2023-11-30 08:56:49,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:49,660 INFO L124 PetriNetUnfolderBase]: 26/636 cut-off events. [2023-11-30 08:56:49,660 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-30 08:56:49,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 636 events. 26/636 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2316 event pairs, 4 based on Foata normal form. 38/567 useless extension candidates. Maximal degree in co-relation 580. Up to 87 conditions per place. [2023-11-30 08:56:49,664 INFO L140 encePairwiseOnDemand]: 315/350 looper letters, 147 selfloop transitions, 15 changer transitions 20/379 dead transitions. [2023-11-30 08:56:49,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 379 transitions, 1146 flow [2023-11-30 08:56:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 08:56:49,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 08:56:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3026 transitions. [2023-11-30 08:56:49,679 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.665054945054945 [2023-11-30 08:56:49,680 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3026 transitions. [2023-11-30 08:56:49,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3026 transitions. [2023-11-30 08:56:49,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:49,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3026 transitions. [2023-11-30 08:56:49,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 232.76923076923077) internal successors, (3026), 13 states have internal predecessors, (3026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:49,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 350.0) internal successors, (4900), 14 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:49,703 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 350.0) internal successors, (4900), 14 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:49,705 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 10 predicate places. [2023-11-30 08:56:49,706 INFO L500 AbstractCegarLoop]: Abstraction has has 312 places, 379 transitions, 1146 flow [2023-11-30 08:56:49,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 218.33333333333334) internal successors, (1965), 9 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:49,708 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:49,708 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:49,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 08:56:49,913 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-30 08:56:49,914 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:49,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:49,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1723966487, now seen corresponding path program 1 times [2023-11-30 08:56:49,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961061837] [2023-11-30 08:56:49,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:49,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:49,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:49,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100255254] [2023-11-30 08:56:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:49,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:49,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:49,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:49,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 08:56:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:50,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:56:50,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:50,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:50,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961061837] [2023-11-30 08:56:50,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100255254] [2023-11-30 08:56:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100255254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:50,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:50,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:56:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77640397] [2023-11-30 08:56:50,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:50,104 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:56:50,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:50,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:56:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:56:50,106 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 350 [2023-11-30 08:56:50,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 379 transitions, 1146 flow. Second operand has 4 states, 4 states have (on average 301.25) internal successors, (1205), 4 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:50,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 350 [2023-11-30 08:56:50,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:50,221 INFO L124 PetriNetUnfolderBase]: 24/634 cut-off events. [2023-11-30 08:56:50,221 INFO L125 PetriNetUnfolderBase]: For 72/84 co-relation queries the response was YES. [2023-11-30 08:56:50,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 634 events. 24/634 cut-off events. For 72/84 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2322 event pairs, 4 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 608. Up to 86 conditions per place. [2023-11-30 08:56:50,225 INFO L140 encePairwiseOnDemand]: 342/350 looper letters, 38 selfloop transitions, 6 changer transitions 20/377 dead transitions. [2023-11-30 08:56:50,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 377 transitions, 1226 flow [2023-11-30 08:56:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:56:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:56:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1541 transitions. [2023-11-30 08:56:50,228 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8805714285714286 [2023-11-30 08:56:50,228 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1541 transitions. [2023-11-30 08:56:50,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1541 transitions. [2023-11-30 08:56:50,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:50,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1541 transitions. [2023-11-30 08:56:50,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 308.2) internal successors, (1541), 5 states have internal predecessors, (1541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,235 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,236 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 14 predicate places. [2023-11-30 08:56:50,236 INFO L500 AbstractCegarLoop]: Abstraction has has 316 places, 377 transitions, 1226 flow [2023-11-30 08:56:50,237 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.25) internal successors, (1205), 4 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,239 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:50,240 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:50,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-30 08:56:50,445 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-30 08:56:50,446 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:50,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 168563114, now seen corresponding path program 1 times [2023-11-30 08:56:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:50,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950529377] [2023-11-30 08:56:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:50,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:50,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572978467] [2023-11-30 08:56:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:50,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:50,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:50,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:50,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 08:56:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:50,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 08:56:50,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:50,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:50,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950529377] [2023-11-30 08:56:50,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572978467] [2023-11-30 08:56:50,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572978467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:50,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-30 08:56:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229027799] [2023-11-30 08:56:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:50,776 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 08:56:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 08:56:50,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-30 08:56:50,779 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 350 [2023-11-30 08:56:50,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 377 transitions, 1226 flow. Second operand has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:50,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:50,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 350 [2023-11-30 08:56:50,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:51,341 INFO L124 PetriNetUnfolderBase]: 46/655 cut-off events. [2023-11-30 08:56:51,342 INFO L125 PetriNetUnfolderBase]: For 369/393 co-relation queries the response was YES. [2023-11-30 08:56:51,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 655 events. 46/655 cut-off events. For 369/393 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2740 event pairs, 26 based on Foata normal form. 0/551 useless extension candidates. Maximal degree in co-relation 761. Up to 125 conditions per place. [2023-11-30 08:56:51,345 INFO L140 encePairwiseOnDemand]: 333/350 looper letters, 180 selfloop transitions, 16 changer transitions 20/395 dead transitions. [2023-11-30 08:56:51,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 395 transitions, 1690 flow [2023-11-30 08:56:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 08:56:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 08:56:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3157 transitions. [2023-11-30 08:56:51,350 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6013333333333334 [2023-11-30 08:56:51,350 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3157 transitions. [2023-11-30 08:56:51,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3157 transitions. [2023-11-30 08:56:51,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:51,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3157 transitions. [2023-11-30 08:56:51,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 210.46666666666667) internal successors, (3157), 15 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:51,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:51,362 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:51,363 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 27 predicate places. [2023-11-30 08:56:51,363 INFO L500 AbstractCegarLoop]: Abstraction has has 329 places, 395 transitions, 1690 flow [2023-11-30 08:56:51,363 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:51,363 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:51,364 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:51,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 08:56:51,568 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:51,569 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:51,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash 930489941, now seen corresponding path program 1 times [2023-11-30 08:56:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:51,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780795791] [2023-11-30 08:56:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:51,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:51,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105053366] [2023-11-30 08:56:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:51,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:51,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:51,581 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:51,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 08:56:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:51,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 08:56:51,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:52,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:52,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780795791] [2023-11-30 08:56:52,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105053366] [2023-11-30 08:56:52,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105053366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:52,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:52,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-30 08:56:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002896434] [2023-11-30 08:56:52,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:52,087 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-30 08:56:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-30 08:56:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-30 08:56:52,090 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 350 [2023-11-30 08:56:52,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 395 transitions, 1690 flow. Second operand has 13 states, 13 states have (on average 195.6153846153846) internal successors, (2543), 13 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:52,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:52,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 350 [2023-11-30 08:56:52,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:57,998 INFO L124 PetriNetUnfolderBase]: 46/654 cut-off events. [2023-11-30 08:56:57,998 INFO L125 PetriNetUnfolderBase]: For 485/521 co-relation queries the response was YES. [2023-11-30 08:56:57,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 654 events. 46/654 cut-off events. For 485/521 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2723 event pairs, 26 based on Foata normal form. 0/551 useless extension candidates. Maximal degree in co-relation 915. Up to 124 conditions per place. [2023-11-30 08:56:58,002 INFO L140 encePairwiseOnDemand]: 331/350 looper letters, 180 selfloop transitions, 18 changer transitions 20/394 dead transitions. [2023-11-30 08:56:58,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 394 transitions, 2118 flow [2023-11-30 08:56:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-30 08:56:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-30 08:56:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3886 transitions. [2023-11-30 08:56:58,011 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5843609022556391 [2023-11-30 08:56:58,011 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3886 transitions. [2023-11-30 08:56:58,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3886 transitions. [2023-11-30 08:56:58,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:58,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3886 transitions. [2023-11-30 08:56:58,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 204.52631578947367) internal successors, (3886), 19 states have internal predecessors, (3886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 350.0) internal successors, (7000), 20 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,034 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 350.0) internal successors, (7000), 20 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,036 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 44 predicate places. [2023-11-30 08:56:58,036 INFO L500 AbstractCegarLoop]: Abstraction has has 346 places, 394 transitions, 2118 flow [2023-11-30 08:56:58,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 195.6153846153846) internal successors, (2543), 13 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,037 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:58,038 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:58,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 08:56:58,238 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:58,239 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:58,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:58,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1604102947, now seen corresponding path program 1 times [2023-11-30 08:56:58,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:58,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878376404] [2023-11-30 08:56:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:58,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:58,262 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:58,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131102691] [2023-11-30 08:56:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:58,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:58,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:58,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:58,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 08:56:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:58,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:56:58,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:58,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:58,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878376404] [2023-11-30 08:56:58,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:58,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131102691] [2023-11-30 08:56:58,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131102691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:58,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:58,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:56:58,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535518448] [2023-11-30 08:56:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:58,381 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:56:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:56:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:56:58,383 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:56:58,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 394 transitions, 2118 flow. Second operand has 4 states, 4 states have (on average 285.5) internal successors, (1142), 4 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:58,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:56:58,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:58,518 INFO L124 PetriNetUnfolderBase]: 46/648 cut-off events. [2023-11-30 08:56:58,518 INFO L125 PetriNetUnfolderBase]: For 699/735 co-relation queries the response was YES. [2023-11-30 08:56:58,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1639 conditions, 648 events. 46/648 cut-off events. For 699/735 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2670 event pairs, 26 based on Foata normal form. 0/551 useless extension candidates. Maximal degree in co-relation 989. Up to 124 conditions per place. [2023-11-30 08:56:58,521 INFO L140 encePairwiseOnDemand]: 335/350 looper letters, 35 selfloop transitions, 12 changer transitions 20/391 dead transitions. [2023-11-30 08:56:58,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 391 transitions, 2206 flow [2023-11-30 08:56:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:56:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:56:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1182 transitions. [2023-11-30 08:56:58,523 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8442857142857143 [2023-11-30 08:56:58,523 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1182 transitions. [2023-11-30 08:56:58,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1182 transitions. [2023-11-30 08:56:58,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:58,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1182 transitions. [2023-11-30 08:56:58,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 295.5) internal successors, (1182), 4 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,528 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,528 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 44 predicate places. [2023-11-30 08:56:58,528 INFO L500 AbstractCegarLoop]: Abstraction has has 346 places, 391 transitions, 2206 flow [2023-11-30 08:56:58,529 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 285.5) internal successors, (1142), 4 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,529 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:58,529 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:58,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 08:56:58,734 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:58,734 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:58,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:58,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1812416798, now seen corresponding path program 1 times [2023-11-30 08:56:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:58,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878918272] [2023-11-30 08:56:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:58,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:58,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:58,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004479295] [2023-11-30 08:56:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:58,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:58,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:58,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:58,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 08:56:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:58,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:56:58,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:58,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:56:58,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:58,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878918272] [2023-11-30 08:56:58,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:58,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004479295] [2023-11-30 08:56:58,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004479295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:56:58,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:56:58,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:56:58,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019471176] [2023-11-30 08:56:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:56:58,839 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:56:58,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:56:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:56:58,841 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:56:58,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 391 transitions, 2206 flow. Second operand has 4 states, 4 states have (on average 285.75) internal successors, (1143), 4 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) [2023-11-30 08:56:58,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:58,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:56:58,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:58,964 INFO L124 PetriNetUnfolderBase]: 52/720 cut-off events. [2023-11-30 08:56:58,965 INFO L125 PetriNetUnfolderBase]: For 985/1021 co-relation queries the response was YES. [2023-11-30 08:56:58,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 720 events. 52/720 cut-off events. For 985/1021 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3088 event pairs, 26 based on Foata normal form. 0/617 useless extension candidates. Maximal degree in co-relation 1249. Up to 124 conditions per place. [2023-11-30 08:56:58,968 INFO L140 encePairwiseOnDemand]: 332/350 looper letters, 59 selfloop transitions, 15 changer transitions 20/418 dead transitions. [2023-11-30 08:56:58,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 418 transitions, 2462 flow [2023-11-30 08:56:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:56:58,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:56:58,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1493 transitions. [2023-11-30 08:56:58,971 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8531428571428571 [2023-11-30 08:56:58,971 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1493 transitions. [2023-11-30 08:56:58,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1493 transitions. [2023-11-30 08:56:58,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:58,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1493 transitions. [2023-11-30 08:56:58,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 298.6) internal successors, (1493), 5 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:58,977 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 48 predicate places. [2023-11-30 08:56:58,977 INFO L500 AbstractCegarLoop]: Abstraction has has 350 places, 418 transitions, 2462 flow [2023-11-30 08:56:58,977 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 285.75) internal successors, (1143), 4 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) [2023-11-30 08:56:58,977 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:58,977 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:58,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-30 08:56:59,182 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:59,182 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:59,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 962790011, now seen corresponding path program 1 times [2023-11-30 08:56:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:59,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297386554] [2023-11-30 08:56:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:59,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549532975] [2023-11-30 08:56:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:59,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:59,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:59,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:59,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 08:56:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:56:59,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:56:59,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:56:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:59,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:56:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:56:59,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:56:59,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297386554] [2023-11-30 08:56:59,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:56:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549532975] [2023-11-30 08:56:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549532975] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:56:59,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:56:59,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-30 08:56:59,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794898425] [2023-11-30 08:56:59,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:56:59,390 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 08:56:59,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:56:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 08:56:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-30 08:56:59,392 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:56:59,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 418 transitions, 2462 flow. Second operand has 10 states, 10 states have (on average 286.7) internal successors, (2867), 10 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:59,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:56:59,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:56:59,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:56:59,653 INFO L124 PetriNetUnfolderBase]: 70/930 cut-off events. [2023-11-30 08:56:59,653 INFO L125 PetriNetUnfolderBase]: For 1451/1487 co-relation queries the response was YES. [2023-11-30 08:56:59,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 930 events. 70/930 cut-off events. For 1451/1487 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4329 event pairs, 26 based on Foata normal form. 0/809 useless extension candidates. Maximal degree in co-relation 2061. Up to 275 conditions per place. [2023-11-30 08:56:59,659 INFO L140 encePairwiseOnDemand]: 329/350 looper letters, 98 selfloop transitions, 54 changer transitions 20/496 dead transitions. [2023-11-30 08:56:59,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 496 transitions, 3234 flow [2023-11-30 08:56:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 08:56:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 08:56:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4133 transitions. [2023-11-30 08:56:59,666 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.843469387755102 [2023-11-30 08:56:59,666 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4133 transitions. [2023-11-30 08:56:59,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4133 transitions. [2023-11-30 08:56:59,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:56:59,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4133 transitions. [2023-11-30 08:56:59,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 295.2142857142857) internal successors, (4133), 14 states have internal predecessors, (4133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:59,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:59,681 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:59,682 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 61 predicate places. [2023-11-30 08:56:59,683 INFO L500 AbstractCegarLoop]: Abstraction has has 363 places, 496 transitions, 3234 flow [2023-11-30 08:56:59,683 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 286.7) internal successors, (2867), 10 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:56:59,683 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:56:59,683 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:56:59,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 08:56:59,889 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:59,890 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:56:59,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:56:59,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1769573650, now seen corresponding path program 2 times [2023-11-30 08:56:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:56:59,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407346077] [2023-11-30 08:56:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:56:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:56:59,919 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:56:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713205344] [2023-11-30 08:56:59,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:56:59,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:56:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:56:59,922 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:56:59,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 08:56:59,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:56:59,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:56:59,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:56:59,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:01,537 WARN L876 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= .cse0 2147483647) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_~i~3#1| 1) .cse0)))) is different from true [2023-11-30 08:57:02,589 WARN L876 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= .cse0 2147483647) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_#t~post27#1| 1) .cse0)))) is different from true [2023-11-30 08:57:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 28 not checked. [2023-11-30 08:57:02,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:57:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 08:57:18,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:18,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407346077] [2023-11-30 08:57:18,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:18,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713205344] [2023-11-30 08:57:18,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713205344] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:57:18,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:57:18,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-30 08:57:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171143724] [2023-11-30 08:57:18,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:57:18,823 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-30 08:57:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-30 08:57:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=78, Unknown=14, NotChecked=38, Total=156 [2023-11-30 08:57:18,826 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 350 [2023-11-30 08:57:18,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 496 transitions, 3234 flow. Second operand has 13 states, 13 states have (on average 222.84615384615384) internal successors, (2897), 13 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:18,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:18,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 350 [2023-11-30 08:57:18,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:22,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:30,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:31,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:38,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:39,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:45,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:46,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:48,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:50,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:51,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-30 08:57:51,941 INFO L124 PetriNetUnfolderBase]: 188/1328 cut-off events. [2023-11-30 08:57:51,942 INFO L125 PetriNetUnfolderBase]: For 2251/2331 co-relation queries the response was YES. [2023-11-30 08:57:51,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3967 conditions, 1328 events. 188/1328 cut-off events. For 2251/2331 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 7522 event pairs, 82 based on Foata normal form. 0/1073 useless extension candidates. Maximal degree in co-relation 2410. Up to 380 conditions per place. [2023-11-30 08:57:51,949 INFO L140 encePairwiseOnDemand]: 316/350 looper letters, 177 selfloop transitions, 68 changer transitions 20/495 dead transitions. [2023-11-30 08:57:51,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 495 transitions, 3716 flow [2023-11-30 08:57:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 08:57:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 08:57:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3402 transitions. [2023-11-30 08:57:51,955 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.648 [2023-11-30 08:57:51,955 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3402 transitions. [2023-11-30 08:57:51,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3402 transitions. [2023-11-30 08:57:51,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:51,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3402 transitions. [2023-11-30 08:57:51,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 226.8) internal successors, (3402), 15 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:51,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:51,966 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:51,968 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 73 predicate places. [2023-11-30 08:57:51,968 INFO L500 AbstractCegarLoop]: Abstraction has has 375 places, 495 transitions, 3716 flow [2023-11-30 08:57:51,969 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 222.84615384615384) internal successors, (2897), 13 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:51,969 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:51,969 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:51,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-30 08:57:52,169 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-30 08:57:52,172 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:52,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash 195755426, now seen corresponding path program 1 times [2023-11-30 08:57:52,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:52,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113396603] [2023-11-30 08:57:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:52,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:52,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033659435] [2023-11-30 08:57:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:52,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:52,204 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:52,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 08:57:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:52,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 08:57:52,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:52,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:52,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113396603] [2023-11-30 08:57:52,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033659435] [2023-11-30 08:57:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033659435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:57:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777477833] [2023-11-30 08:57:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:52,385 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:57:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:57:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:57:52,387 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 350 [2023-11-30 08:57:52,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 495 transitions, 3716 flow. Second operand has 7 states, 7 states have (on average 275.2857142857143) internal successors, (1927), 7 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:52,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:52,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 350 [2023-11-30 08:57:52,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:52,829 INFO L124 PetriNetUnfolderBase]: 280/2362 cut-off events. [2023-11-30 08:57:52,829 INFO L125 PetriNetUnfolderBase]: For 6688/6832 co-relation queries the response was YES. [2023-11-30 08:57:52,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7785 conditions, 2362 events. 280/2362 cut-off events. For 6688/6832 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 16990 event pairs, 148 based on Foata normal form. 6/1981 useless extension candidates. Maximal degree in co-relation 4337. Up to 662 conditions per place. [2023-11-30 08:57:52,838 INFO L140 encePairwiseOnDemand]: 329/350 looper letters, 213 selfloop transitions, 29 changer transitions 20/593 dead transitions. [2023-11-30 08:57:52,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 593 transitions, 5216 flow [2023-11-30 08:57:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:57:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:57:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2827 transitions. [2023-11-30 08:57:52,844 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8077142857142857 [2023-11-30 08:57:52,844 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2827 transitions. [2023-11-30 08:57:52,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2827 transitions. [2023-11-30 08:57:52,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:52,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2827 transitions. [2023-11-30 08:57:52,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 282.7) internal successors, (2827), 10 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:52,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:52,854 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:52,855 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 82 predicate places. [2023-11-30 08:57:52,855 INFO L500 AbstractCegarLoop]: Abstraction has has 384 places, 593 transitions, 5216 flow [2023-11-30 08:57:52,855 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 275.2857142857143) internal successors, (1927), 7 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:52,855 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:52,855 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:52,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-30 08:57:53,061 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:53,062 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:53,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash -616543455, now seen corresponding path program 1 times [2023-11-30 08:57:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:53,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393685383] [2023-11-30 08:57:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:53,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:53,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240989293] [2023-11-30 08:57:53,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:53,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:53,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:53,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 08:57:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:53,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:57:53,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:53,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:53,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393685383] [2023-11-30 08:57:53,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240989293] [2023-11-30 08:57:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240989293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:53,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:57:53,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515523167] [2023-11-30 08:57:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:53,237 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:57:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:57:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:57:53,238 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:57:53,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 593 transitions, 5216 flow. Second operand has 5 states, 5 states have (on average 287.8) internal successors, (1439), 5 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:53,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:57:53,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:53,651 INFO L124 PetriNetUnfolderBase]: 382/3052 cut-off events. [2023-11-30 08:57:53,652 INFO L125 PetriNetUnfolderBase]: For 12807/13159 co-relation queries the response was YES. [2023-11-30 08:57:53,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11192 conditions, 3052 events. 382/3052 cut-off events. For 12807/13159 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 22173 event pairs, 196 based on Foata normal form. 4/2537 useless extension candidates. Maximal degree in co-relation 6157. Up to 970 conditions per place. [2023-11-30 08:57:53,670 INFO L140 encePairwiseOnDemand]: 341/350 looper letters, 101 selfloop transitions, 9 changer transitions 20/629 dead transitions. [2023-11-30 08:57:53,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 629 transitions, 6050 flow [2023-11-30 08:57:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:57:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:57:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1761 transitions. [2023-11-30 08:57:53,672 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8385714285714285 [2023-11-30 08:57:53,672 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1761 transitions. [2023-11-30 08:57:53,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1761 transitions. [2023-11-30 08:57:53,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:53,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1761 transitions. [2023-11-30 08:57:53,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.5) internal successors, (1761), 6 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,677 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,677 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 87 predicate places. [2023-11-30 08:57:53,678 INFO L500 AbstractCegarLoop]: Abstraction has has 389 places, 629 transitions, 6050 flow [2023-11-30 08:57:53,678 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 287.8) internal successors, (1439), 5 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,678 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:53,678 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:53,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-30 08:57:53,882 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-30 08:57:53,883 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:53,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash 497481666, now seen corresponding path program 1 times [2023-11-30 08:57:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:53,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964663195] [2023-11-30 08:57:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:53,906 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:53,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607891847] [2023-11-30 08:57:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:53,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:53,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:53,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 08:57:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:54,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:57:54,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:54,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:54,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964663195] [2023-11-30 08:57:54,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607891847] [2023-11-30 08:57:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607891847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:54,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:54,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436129129] [2023-11-30 08:57:54,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:54,040 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:57:54,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:54,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:57:54,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:57:54,041 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 350 [2023-11-30 08:57:54,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 629 transitions, 6050 flow. Second operand has 4 states, 4 states have (on average 313.5) internal successors, (1254), 4 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) [2023-11-30 08:57:54,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:54,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 350 [2023-11-30 08:57:54,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:54,455 INFO L124 PetriNetUnfolderBase]: 382/3043 cut-off events. [2023-11-30 08:57:54,455 INFO L125 PetriNetUnfolderBase]: For 14923/15271 co-relation queries the response was YES. [2023-11-30 08:57:54,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11417 conditions, 3043 events. 382/3043 cut-off events. For 14923/15271 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 22120 event pairs, 196 based on Foata normal form. 0/2533 useless extension candidates. Maximal degree in co-relation 6238. Up to 969 conditions per place. [2023-11-30 08:57:54,478 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 56 selfloop transitions, 6 changer transitions 20/628 dead transitions. [2023-11-30 08:57:54,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 628 transitions, 6172 flow [2023-11-30 08:57:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:57:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:57:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1265 transitions. [2023-11-30 08:57:54,480 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9035714285714286 [2023-11-30 08:57:54,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1265 transitions. [2023-11-30 08:57:54,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1265 transitions. [2023-11-30 08:57:54,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:54,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1265 transitions. [2023-11-30 08:57:54,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 316.25) internal successors, (1265), 4 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,483 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,483 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 89 predicate places. [2023-11-30 08:57:54,483 INFO L500 AbstractCegarLoop]: Abstraction has has 391 places, 628 transitions, 6172 flow [2023-11-30 08:57:54,484 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.5) internal successors, (1254), 4 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) [2023-11-30 08:57:54,484 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:54,484 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:54,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 08:57:54,696 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-30 08:57:54,696 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:54,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:54,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1757936737, now seen corresponding path program 1 times [2023-11-30 08:57:54,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768796503] [2023-11-30 08:57:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:54,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:54,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474133947] [2023-11-30 08:57:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:54,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:54,707 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:54,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-30 08:57:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:54,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:57:54,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:54,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:54,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:54,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768796503] [2023-11-30 08:57:54,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474133947] [2023-11-30 08:57:54,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474133947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:54,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:54,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:54,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023345521] [2023-11-30 08:57:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:54,825 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:57:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:57:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:57:54,826 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 350 [2023-11-30 08:57:54,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 628 transitions, 6172 flow. Second operand has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:54,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 350 [2023-11-30 08:57:54,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:55,281 INFO L124 PetriNetUnfolderBase]: 379/3003 cut-off events. [2023-11-30 08:57:55,281 INFO L125 PetriNetUnfolderBase]: For 17230/17579 co-relation queries the response was YES. [2023-11-30 08:57:55,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11562 conditions, 3003 events. 379/3003 cut-off events. For 17230/17579 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 21664 event pairs, 196 based on Foata normal form. 0/2509 useless extension candidates. Maximal degree in co-relation 6327. Up to 955 conditions per place. [2023-11-30 08:57:55,292 INFO L140 encePairwiseOnDemand]: 344/350 looper letters, 60 selfloop transitions, 5 changer transitions 20/631 dead transitions. [2023-11-30 08:57:55,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 631 transitions, 6314 flow [2023-11-30 08:57:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:57:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:57:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1586 transitions. [2023-11-30 08:57:55,294 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9062857142857143 [2023-11-30 08:57:55,294 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1586 transitions. [2023-11-30 08:57:55,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1586 transitions. [2023-11-30 08:57:55,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:55,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1586 transitions. [2023-11-30 08:57:55,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 317.2) internal successors, (1586), 5 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,299 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,299 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 93 predicate places. [2023-11-30 08:57:55,299 INFO L500 AbstractCegarLoop]: Abstraction has has 395 places, 631 transitions, 6314 flow [2023-11-30 08:57:55,300 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,300 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:55,300 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:55,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-30 08:57:55,505 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-30 08:57:55,505 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:55,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash -693810291, now seen corresponding path program 1 times [2023-11-30 08:57:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:55,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692936912] [2023-11-30 08:57:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:55,517 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:55,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009610942] [2023-11-30 08:57:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:55,524 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:55,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-30 08:57:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:57:55,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:57:55,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:55,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692936912] [2023-11-30 08:57:55,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:55,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009610942] [2023-11-30 08:57:55,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009610942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:55,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036387159] [2023-11-30 08:57:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,645 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:57:55,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:57:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:57:55,646 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 350 [2023-11-30 08:57:55,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 631 transitions, 6314 flow. Second operand has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 350 [2023-11-30 08:57:55,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:56,053 INFO L124 PetriNetUnfolderBase]: 355/3044 cut-off events. [2023-11-30 08:57:56,053 INFO L125 PetriNetUnfolderBase]: For 21699/22338 co-relation queries the response was YES. [2023-11-30 08:57:56,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12314 conditions, 3044 events. 355/3044 cut-off events. For 21699/22338 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 22397 event pairs, 180 based on Foata normal form. 39/2622 useless extension candidates. Maximal degree in co-relation 6391. Up to 942 conditions per place. [2023-11-30 08:57:56,070 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 57 selfloop transitions, 6 changer transitions 20/638 dead transitions. [2023-11-30 08:57:56,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 638 transitions, 6670 flow [2023-11-30 08:57:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:57:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:57:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1271 transitions. [2023-11-30 08:57:56,072 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9078571428571428 [2023-11-30 08:57:56,072 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1271 transitions. [2023-11-30 08:57:56,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1271 transitions. [2023-11-30 08:57:56,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:56,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1271 transitions. [2023-11-30 08:57:56,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 317.75) internal successors, (1271), 4 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,075 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,075 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 95 predicate places. [2023-11-30 08:57:56,075 INFO L500 AbstractCegarLoop]: Abstraction has has 397 places, 638 transitions, 6670 flow [2023-11-30 08:57:56,075 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,075 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:56,076 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:56,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-30 08:57:56,280 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-30 08:57:56,281 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:56,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:56,282 INFO L85 PathProgramCache]: Analyzing trace with hash -33281679, now seen corresponding path program 1 times [2023-11-30 08:57:56,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:56,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078615694] [2023-11-30 08:57:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:56,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:56,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:56,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985462949] [2023-11-30 08:57:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:56,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:56,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:56,305 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:56,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-30 08:57:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:56,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:57:56,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:57:56,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:56,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:56,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078615694] [2023-11-30 08:57:56,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:56,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985462949] [2023-11-30 08:57:56,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985462949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:56,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:56,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:56,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168226103] [2023-11-30 08:57:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:56,422 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:57:56,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:57:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:57:56,423 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 350 [2023-11-30 08:57:56,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 638 transitions, 6670 flow. Second operand has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 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) [2023-11-30 08:57:56,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:56,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 350 [2023-11-30 08:57:56,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:56,993 INFO L124 PetriNetUnfolderBase]: 474/3405 cut-off events. [2023-11-30 08:57:56,993 INFO L125 PetriNetUnfolderBase]: For 25875/26568 co-relation queries the response was YES. [2023-11-30 08:57:57,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14717 conditions, 3405 events. 474/3405 cut-off events. For 25875/26568 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 26187 event pairs, 236 based on Foata normal form. 59/2930 useless extension candidates. Maximal degree in co-relation 6619. Up to 1099 conditions per place. [2023-11-30 08:57:57,014 INFO L140 encePairwiseOnDemand]: 344/350 looper letters, 78 selfloop transitions, 7 changer transitions 20/660 dead transitions. [2023-11-30 08:57:57,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 660 transitions, 7270 flow [2023-11-30 08:57:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:57:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:57:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1595 transitions. [2023-11-30 08:57:57,015 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9114285714285715 [2023-11-30 08:57:57,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1595 transitions. [2023-11-30 08:57:57,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1595 transitions. [2023-11-30 08:57:57,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:57,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1595 transitions. [2023-11-30 08:57:57,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 319.0) internal successors, (1595), 5 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:57,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:57,018 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:57,019 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 99 predicate places. [2023-11-30 08:57:57,019 INFO L500 AbstractCegarLoop]: Abstraction has has 401 places, 660 transitions, 7270 flow [2023-11-30 08:57:57,019 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 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) [2023-11-30 08:57:57,019 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:57,019 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:57,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-30 08:57:57,224 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:57,226 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:57,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash -693205819, now seen corresponding path program 1 times [2023-11-30 08:57:57,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:57,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801582034] [2023-11-30 08:57:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:57,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:57,246 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:57,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297923932] [2023-11-30 08:57:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:57,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:57,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:57,247 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:57,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-30 08:57:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:57,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:57:57,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:57:57,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:57:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:57:57,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:57,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801582034] [2023-11-30 08:57:57,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:57,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297923932] [2023-11-30 08:57:57,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297923932] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:57:57,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:57:57,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2023-11-30 08:57:57,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217076981] [2023-11-30 08:57:57,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:57:57,743 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 08:57:57,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:57,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 08:57:57,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-30 08:57:57,747 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 350 [2023-11-30 08:57:57,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 660 transitions, 7270 flow. Second operand has 19 states, 19 states have (on average 255.1578947368421) internal successors, (4848), 19 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:57,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:57,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 350 [2023-11-30 08:57:57,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:59,060 INFO L124 PetriNetUnfolderBase]: 720/4987 cut-off events. [2023-11-30 08:57:59,060 INFO L125 PetriNetUnfolderBase]: For 45216/46858 co-relation queries the response was YES. [2023-11-30 08:57:59,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23973 conditions, 4987 events. 720/4987 cut-off events. For 45216/46858 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 42249 event pairs, 338 based on Foata normal form. 208/4445 useless extension candidates. Maximal degree in co-relation 10692. Up to 1657 conditions per place. [2023-11-30 08:57:59,086 INFO L140 encePairwiseOnDemand]: 317/350 looper letters, 430 selfloop transitions, 87 changer transitions 20/836 dead transitions. [2023-11-30 08:57:59,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 836 transitions, 11304 flow [2023-11-30 08:57:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 08:57:59,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 08:57:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5958 transitions. [2023-11-30 08:57:59,090 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7401242236024844 [2023-11-30 08:57:59,090 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5958 transitions. [2023-11-30 08:57:59,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5958 transitions. [2023-11-30 08:57:59,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:59,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5958 transitions. [2023-11-30 08:57:59,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 259.04347826086956) internal successors, (5958), 23 states have internal predecessors, (5958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:59,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:59,101 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:59,101 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 121 predicate places. [2023-11-30 08:57:59,101 INFO L500 AbstractCegarLoop]: Abstraction has has 423 places, 836 transitions, 11304 flow [2023-11-30 08:57:59,102 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 255.1578947368421) internal successors, (4848), 19 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:59,102 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:59,102 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:59,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-30 08:57:59,307 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 08:57:59,307 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:57:59,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:59,307 INFO L85 PathProgramCache]: Analyzing trace with hash -882588336, now seen corresponding path program 1 times [2023-11-30 08:57:59,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:59,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852167962] [2023-11-30 08:57:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:59,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:59,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:57:59,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856102131] [2023-11-30 08:57:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:59,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:57:59,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:59,321 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:57:59,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-30 08:57:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:59,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:57:59,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:57:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:59,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:57:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852167962] [2023-11-30 08:57:59,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:57:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856102131] [2023-11-30 08:57:59,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856102131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:59,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:59,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 08:57:59,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81640456] [2023-11-30 08:57:59,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:59,482 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:57:59,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:59,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:57:59,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:57:59,483 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 350 [2023-11-30 08:57:59,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 836 transitions, 11304 flow. Second operand has 6 states, 6 states have (on average 228.66666666666666) internal successors, (1372), 6 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:59,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:59,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 350 [2023-11-30 08:57:59,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:00,454 INFO L124 PetriNetUnfolderBase]: 739/5052 cut-off events. [2023-11-30 08:58:00,454 INFO L125 PetriNetUnfolderBase]: For 53090/54355 co-relation queries the response was YES. [2023-11-30 08:58:00,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25223 conditions, 5052 events. 739/5052 cut-off events. For 53090/54355 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 42666 event pairs, 325 based on Foata normal form. 10/4285 useless extension candidates. Maximal degree in co-relation 11151. Up to 1677 conditions per place. [2023-11-30 08:58:00,507 INFO L140 encePairwiseOnDemand]: 330/350 looper letters, 265 selfloop transitions, 7 changer transitions 76/878 dead transitions. [2023-11-30 08:58:00,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 878 transitions, 12408 flow [2023-11-30 08:58:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:58:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:58:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2301 transitions. [2023-11-30 08:58:00,509 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6574285714285715 [2023-11-30 08:58:00,509 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2301 transitions. [2023-11-30 08:58:00,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2301 transitions. [2023-11-30 08:58:00,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:00,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2301 transitions. [2023-11-30 08:58:00,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 230.1) internal successors, (2301), 10 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:00,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:00,514 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:00,514 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 130 predicate places. [2023-11-30 08:58:00,514 INFO L500 AbstractCegarLoop]: Abstraction has has 432 places, 878 transitions, 12408 flow [2023-11-30 08:58:00,514 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.66666666666666) internal successors, (1372), 6 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:00,514 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:00,515 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:00,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-30 08:58:00,719 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 08:58:00,719 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:00,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash -949311757, now seen corresponding path program 1 times [2023-11-30 08:58:00,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:00,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400996706] [2023-11-30 08:58:00,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:00,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:00,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:00,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594186881] [2023-11-30 08:58:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:00,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:00,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:00,733 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:00,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-30 08:58:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:00,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 08:58:00,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:00,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:00,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400996706] [2023-11-30 08:58:00,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:00,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594186881] [2023-11-30 08:58:00,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594186881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:00,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:00,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:58:00,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355401672] [2023-11-30 08:58:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:00,913 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:58:00,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:58:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:58:00,915 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 350 [2023-11-30 08:58:00,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 878 transitions, 12408 flow. Second operand has 7 states, 7 states have (on average 252.28571428571428) internal successors, (1766), 7 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:00,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:00,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 350 [2023-11-30 08:58:00,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:02,470 INFO L124 PetriNetUnfolderBase]: 1022/6834 cut-off events. [2023-11-30 08:58:02,470 INFO L125 PetriNetUnfolderBase]: For 94155/96201 co-relation queries the response was YES. [2023-11-30 08:58:02,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37282 conditions, 6834 events. 1022/6834 cut-off events. For 94155/96201 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 63614 event pairs, 462 based on Foata normal form. 38/5866 useless extension candidates. Maximal degree in co-relation 15829. Up to 2305 conditions per place. [2023-11-30 08:58:02,505 INFO L140 encePairwiseOnDemand]: 337/350 looper letters, 571 selfloop transitions, 55 changer transitions 76/1079 dead transitions. [2023-11-30 08:58:02,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1079 transitions, 17742 flow [2023-11-30 08:58:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:58:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:58:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2583 transitions. [2023-11-30 08:58:02,507 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.738 [2023-11-30 08:58:02,508 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2583 transitions. [2023-11-30 08:58:02,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2583 transitions. [2023-11-30 08:58:02,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:02,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2583 transitions. [2023-11-30 08:58:02,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 258.3) internal successors, (2583), 10 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:02,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:02,515 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:02,520 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 139 predicate places. [2023-11-30 08:58:02,520 INFO L500 AbstractCegarLoop]: Abstraction has has 441 places, 1079 transitions, 17742 flow [2023-11-30 08:58:02,521 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 252.28571428571428) internal successors, (1766), 7 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:02,521 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:02,521 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:02,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:02,726 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 08:58:02,727 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:02,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 636138273, now seen corresponding path program 1 times [2023-11-30 08:58:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:02,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053192865] [2023-11-30 08:58:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:02,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:02,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:02,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057374771] [2023-11-30 08:58:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:02,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:02,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:02,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:02,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-30 08:58:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:02,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:58:02,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:58:02,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:02,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053192865] [2023-11-30 08:58:02,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:02,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057374771] [2023-11-30 08:58:02,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057374771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:02,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:02,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:58:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923415091] [2023-11-30 08:58:02,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:02,881 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:58:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:02,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:58:02,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:58:02,883 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 350 [2023-11-30 08:58:02,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1079 transitions, 17742 flow. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:02,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:02,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 350 [2023-11-30 08:58:02,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:04,458 INFO L124 PetriNetUnfolderBase]: 1062/6773 cut-off events. [2023-11-30 08:58:04,458 INFO L125 PetriNetUnfolderBase]: For 113174/115763 co-relation queries the response was YES. [2023-11-30 08:58:04,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39172 conditions, 6773 events. 1062/6773 cut-off events. For 113174/115763 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 62779 event pairs, 290 based on Foata normal form. 100/5916 useless extension candidates. Maximal degree in co-relation 15847. Up to 2339 conditions per place. [2023-11-30 08:58:04,500 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 177 selfloop transitions, 6 changer transitions 76/1102 dead transitions. [2023-11-30 08:58:04,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 1102 transitions, 19130 flow [2023-11-30 08:58:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:58:04,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:58:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1247 transitions. [2023-11-30 08:58:04,501 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8907142857142857 [2023-11-30 08:58:04,501 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1247 transitions. [2023-11-30 08:58:04,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1247 transitions. [2023-11-30 08:58:04,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:04,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1247 transitions. [2023-11-30 08:58:04,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:04,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:04,504 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:04,504 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 141 predicate places. [2023-11-30 08:58:04,504 INFO L500 AbstractCegarLoop]: Abstraction has has 443 places, 1102 transitions, 19130 flow [2023-11-30 08:58:04,504 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:04,504 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:04,504 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:04,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-30 08:58:04,709 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 08:58:04,709 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:04,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1754549128, now seen corresponding path program 1 times [2023-11-30 08:58:04,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:04,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932171024] [2023-11-30 08:58:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:04,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:04,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64237347] [2023-11-30 08:58:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:04,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:04,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:04,723 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:04,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-30 08:58:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:04,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:58:04,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:58:04,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:04,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:04,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932171024] [2023-11-30 08:58:04,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:04,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64237347] [2023-11-30 08:58:04,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64237347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:04,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:04,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:58:04,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312777156] [2023-11-30 08:58:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:04,885 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:58:04,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:58:04,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:58:04,886 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 350 [2023-11-30 08:58:04,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1102 transitions, 19130 flow. Second operand has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:04,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:04,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 350 [2023-11-30 08:58:04,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:07,135 INFO L124 PetriNetUnfolderBase]: 1695/9089 cut-off events. [2023-11-30 08:58:07,135 INFO L125 PetriNetUnfolderBase]: For 178603/183374 co-relation queries the response was YES. [2023-11-30 08:58:07,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55096 conditions, 9089 events. 1695/9089 cut-off events. For 178603/183374 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 90618 event pairs, 629 based on Foata normal form. 214/7841 useless extension candidates. Maximal degree in co-relation 15865. Up to 3349 conditions per place. [2023-11-30 08:58:07,194 INFO L140 encePairwiseOnDemand]: 344/350 looper letters, 247 selfloop transitions, 7 changer transitions 76/1173 dead transitions. [2023-11-30 08:58:07,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1173 transitions, 21808 flow [2023-11-30 08:58:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:58:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:58:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1571 transitions. [2023-11-30 08:58:07,196 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8977142857142857 [2023-11-30 08:58:07,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1571 transitions. [2023-11-30 08:58:07,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1571 transitions. [2023-11-30 08:58:07,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:07,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1571 transitions. [2023-11-30 08:58:07,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 314.2) internal successors, (1571), 5 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:07,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:07,208 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:07,208 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 145 predicate places. [2023-11-30 08:58:07,210 INFO L500 AbstractCegarLoop]: Abstraction has has 447 places, 1173 transitions, 21808 flow [2023-11-30 08:58:07,210 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:07,210 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:07,210 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:07,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:07,415 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:07,415 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:07,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash -147377840, now seen corresponding path program 1 times [2023-11-30 08:58:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:07,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544372887] [2023-11-30 08:58:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:07,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:07,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720485756] [2023-11-30 08:58:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:07,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:07,431 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:07,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-30 08:58:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:07,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:58:07,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:58:07,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:07,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544372887] [2023-11-30 08:58:07,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720485756] [2023-11-30 08:58:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720485756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:07,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:07,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:58:07,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145572041] [2023-11-30 08:58:07,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:07,625 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:58:07,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:58:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:58:07,626 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 350 [2023-11-30 08:58:07,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 1173 transitions, 21808 flow. Second operand has 5 states, 5 states have (on average 298.6) internal successors, (1493), 5 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:07,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:07,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 350 [2023-11-30 08:58:07,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:08,887 INFO L124 PetriNetUnfolderBase]: 906/5254 cut-off events. [2023-11-30 08:58:08,888 INFO L125 PetriNetUnfolderBase]: For 110376/112801 co-relation queries the response was YES. [2023-11-30 08:58:08,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32125 conditions, 5254 events. 906/5254 cut-off events. For 110376/112801 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 44026 event pairs, 333 based on Foata normal form. 72/4537 useless extension candidates. Maximal degree in co-relation 10589. Up to 1771 conditions per place. [2023-11-30 08:58:08,931 INFO L140 encePairwiseOnDemand]: 341/350 looper letters, 142 selfloop transitions, 8 changer transitions 75/989 dead transitions. [2023-11-30 08:58:08,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 989 transitions, 17094 flow [2023-11-30 08:58:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:58:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:58:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1812 transitions. [2023-11-30 08:58:08,933 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8628571428571429 [2023-11-30 08:58:08,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1812 transitions. [2023-11-30 08:58:08,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1812 transitions. [2023-11-30 08:58:08,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:08,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1812 transitions. [2023-11-30 08:58:08,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:08,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:08,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:08,937 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 150 predicate places. [2023-11-30 08:58:08,937 INFO L500 AbstractCegarLoop]: Abstraction has has 452 places, 989 transitions, 17094 flow [2023-11-30 08:58:08,937 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 298.6) internal successors, (1493), 5 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:08,937 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:08,937 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:08,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:09,142 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:09,143 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:09,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1824465232, now seen corresponding path program 2 times [2023-11-30 08:58:09,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:09,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144223863] [2023-11-30 08:58:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:09,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:09,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625242557] [2023-11-30 08:58:09,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:58:09,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:09,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:09,158 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:09,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-30 08:58:09,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:58:09,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:58:09,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:58:09,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:10,308 WARN L876 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= .cse0 2147483647) (<= c_~L~0 .cse0)))) is different from true [2023-11-30 08:58:11,886 WARN L876 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= (+ c_thread1Thread1of1ForFork1_~i~0 1) .cse0) (<= .cse0 2147483647)))) is different from true [2023-11-30 08:58:12,867 WARN L876 $PredicateComparison]: unable to prove that (exists ((~M~0 Int) (~N~0 Int)) (let ((.cse0 (* ~N~0 ~M~0))) (and (<= .cse0 2147483647) (<= (+ |c_thread1Thread1of1ForFork1_#t~post1| 1) .cse0)))) is different from true [2023-11-30 08:58:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 6 not checked. [2023-11-30 08:58:12,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:58:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-30 08:58:12,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144223863] [2023-11-30 08:58:12,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625242557] [2023-11-30 08:58:12,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625242557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:58:12,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:58:12,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 08:58:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319340601] [2023-11-30 08:58:12,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:58:12,985 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 08:58:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 08:58:12,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=24, Unknown=3, NotChecked=30, Total=72 [2023-11-30 08:58:12,987 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 350 [2023-11-30 08:58:12,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 989 transitions, 17094 flow. Second operand has 9 states, 9 states have (on average 271.0) internal successors, (2439), 9 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:12,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:12,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 350 [2023-11-30 08:58:12,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:36,274 INFO L124 PetriNetUnfolderBase]: 1834/6748 cut-off events. [2023-11-30 08:58:36,274 INFO L125 PetriNetUnfolderBase]: For 120715/123275 co-relation queries the response was YES. [2023-11-30 08:58:36,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44820 conditions, 6748 events. 1834/6748 cut-off events. For 120715/123275 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 54761 event pairs, 170 based on Foata normal form. 202/5914 useless extension candidates. Maximal degree in co-relation 10800. Up to 2601 conditions per place. [2023-11-30 08:58:36,317 INFO L140 encePairwiseOnDemand]: 334/350 looper letters, 252 selfloop transitions, 22 changer transitions 200/1127 dead transitions. [2023-11-30 08:58:36,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 1127 transitions, 20730 flow [2023-11-30 08:58:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 08:58:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 08:58:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3570 transitions. [2023-11-30 08:58:36,319 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7846153846153846 [2023-11-30 08:58:36,319 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3570 transitions. [2023-11-30 08:58:36,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3570 transitions. [2023-11-30 08:58:36,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:36,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3570 transitions. [2023-11-30 08:58:36,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 274.61538461538464) internal successors, (3570), 13 states have internal predecessors, (3570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:36,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 350.0) internal successors, (4900), 14 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:36,325 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 350.0) internal successors, (4900), 14 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:36,325 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 161 predicate places. [2023-11-30 08:58:36,325 INFO L500 AbstractCegarLoop]: Abstraction has has 463 places, 1127 transitions, 20730 flow [2023-11-30 08:58:36,326 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 271.0) internal successors, (2439), 9 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:36,326 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:36,326 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:36,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:36,530 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:36,531 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:36,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:36,531 INFO L85 PathProgramCache]: Analyzing trace with hash -115333137, now seen corresponding path program 1 times [2023-11-30 08:58:36,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:36,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824848403] [2023-11-30 08:58:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:36,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:36,542 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:36,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123004157] [2023-11-30 08:58:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:36,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:36,544 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:36,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-30 08:58:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:36,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:58:36,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:58:36,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:36,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:36,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824848403] [2023-11-30 08:58:36,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:36,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123004157] [2023-11-30 08:58:36,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123004157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:36,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:36,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 08:58:36,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487405277] [2023-11-30 08:58:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:36,714 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:58:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:58:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:58:36,715 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 350 [2023-11-30 08:58:36,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1127 transitions, 20730 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:36,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:36,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 350 [2023-11-30 08:58:36,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:38,207 INFO L124 PetriNetUnfolderBase]: 1730/6610 cut-off events. [2023-11-30 08:58:38,207 INFO L125 PetriNetUnfolderBase]: For 126044/128378 co-relation queries the response was YES. [2023-11-30 08:58:38,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45238 conditions, 6610 events. 1730/6610 cut-off events. For 126044/128378 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 53710 event pairs, 148 based on Foata normal form. 297/5990 useless extension candidates. Maximal degree in co-relation 10812. Up to 2463 conditions per place. [2023-11-30 08:58:38,258 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 178 selfloop transitions, 3 changer transitions 200/1119 dead transitions. [2023-11-30 08:58:38,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1119 transitions, 21128 flow [2023-11-30 08:58:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:58:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:58:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2023-11-30 08:58:38,260 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.92 [2023-11-30 08:58:38,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2023-11-30 08:58:38,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2023-11-30 08:58:38,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:38,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2023-11-30 08:58:38,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:38,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:38,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:38,262 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 163 predicate places. [2023-11-30 08:58:38,262 INFO L500 AbstractCegarLoop]: Abstraction has has 465 places, 1119 transitions, 21128 flow [2023-11-30 08:58:38,262 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:38,262 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:38,262 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:38,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-30 08:58:38,468 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:38,468 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:38,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2062298549, now seen corresponding path program 1 times [2023-11-30 08:58:38,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:38,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754887863] [2023-11-30 08:58:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:38,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:38,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888641556] [2023-11-30 08:58:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:38,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:38,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:38,482 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:38,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-30 08:58:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:38,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 08:58:38,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:38,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:58:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:38,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754887863] [2023-11-30 08:58:38,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888641556] [2023-11-30 08:58:38,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888641556] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:58:38,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:58:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-11-30 08:58:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549213910] [2023-11-30 08:58:38,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:58:38,841 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 08:58:38,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:38,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 08:58:38,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-30 08:58:38,844 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 350 [2023-11-30 08:58:38,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1119 transitions, 21128 flow. Second operand has 12 states, 12 states have (on average 277.6666666666667) internal successors, (3332), 12 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:38,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:38,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 350 [2023-11-30 08:58:38,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:41,465 INFO L124 PetriNetUnfolderBase]: 2602/9679 cut-off events. [2023-11-30 08:58:41,466 INFO L125 PetriNetUnfolderBase]: For 209894/213852 co-relation queries the response was YES. [2023-11-30 08:58:41,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70000 conditions, 9679 events. 2602/9679 cut-off events. For 209894/213852 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 82171 event pairs, 264 based on Foata normal form. 448/8771 useless extension candidates. Maximal degree in co-relation 14895. Up to 3785 conditions per place. [2023-11-30 08:58:41,646 INFO L140 encePairwiseOnDemand]: 335/350 looper letters, 353 selfloop transitions, 29 changer transitions 206/1286 dead transitions. [2023-11-30 08:58:41,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1286 transitions, 28459 flow [2023-11-30 08:58:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 08:58:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 08:58:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 4208 transitions. [2023-11-30 08:58:41,655 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8015238095238095 [2023-11-30 08:58:41,655 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 4208 transitions. [2023-11-30 08:58:41,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 4208 transitions. [2023-11-30 08:58:41,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:41,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 4208 transitions. [2023-11-30 08:58:41,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 280.53333333333336) internal successors, (4208), 15 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:41,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:41,661 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 350.0) internal successors, (5600), 16 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:41,661 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 177 predicate places. [2023-11-30 08:58:41,662 INFO L500 AbstractCegarLoop]: Abstraction has has 479 places, 1286 transitions, 28459 flow [2023-11-30 08:58:41,662 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 277.6666666666667) internal successors, (3332), 12 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:41,662 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:41,662 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:41,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:41,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:41,868 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:41,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash 834033299, now seen corresponding path program 1 times [2023-11-30 08:58:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:41,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563636640] [2023-11-30 08:58:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:41,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:41,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:41,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644775025] [2023-11-30 08:58:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:41,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:41,880 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:41,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-30 08:58:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:42,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:58:42,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:58:42,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:42,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:42,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563636640] [2023-11-30 08:58:42,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:42,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644775025] [2023-11-30 08:58:42,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644775025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:42,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:42,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:58:42,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246897468] [2023-11-30 08:58:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:42,034 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:58:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:58:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:58:42,035 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 350 [2023-11-30 08:58:42,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1286 transitions, 28459 flow. Second operand has 4 states, 4 states have (on average 287.5) internal successors, (1150), 4 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:42,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:42,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 350 [2023-11-30 08:58:42,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:46,003 INFO L124 PetriNetUnfolderBase]: 3959/12966 cut-off events. [2023-11-30 08:58:46,003 INFO L125 PetriNetUnfolderBase]: For 311356/319768 co-relation queries the response was YES. [2023-11-30 08:58:46,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98212 conditions, 12966 events. 3959/12966 cut-off events. For 311356/319768 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 112144 event pairs, 684 based on Foata normal form. 470/11303 useless extension candidates. Maximal degree in co-relation 19941. Up to 5397 conditions per place. [2023-11-30 08:58:46,131 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 474 selfloop transitions, 17 changer transitions 206/1399 dead transitions. [2023-11-30 08:58:46,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1399 transitions, 32469 flow [2023-11-30 08:58:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:58:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:58:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1193 transitions. [2023-11-30 08:58:46,133 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8521428571428571 [2023-11-30 08:58:46,133 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1193 transitions. [2023-11-30 08:58:46,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1193 transitions. [2023-11-30 08:58:46,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:46,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1193 transitions. [2023-11-30 08:58:46,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 298.25) internal successors, (1193), 4 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:46,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:46,135 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:46,135 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 180 predicate places. [2023-11-30 08:58:46,135 INFO L500 AbstractCegarLoop]: Abstraction has has 482 places, 1399 transitions, 32469 flow [2023-11-30 08:58:46,136 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 287.5) internal successors, (1150), 4 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:46,136 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:46,136 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:46,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:46,341 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:46,342 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:46,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash 85229384, now seen corresponding path program 1 times [2023-11-30 08:58:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550976840] [2023-11-30 08:58:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:46,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:46,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303562061] [2023-11-30 08:58:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:46,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:46,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:46,354 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:46,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-30 08:58:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:46,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:58:46,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:58:46,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:58:46,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:46,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550976840] [2023-11-30 08:58:46,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303562061] [2023-11-30 08:58:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303562061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:58:46,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:58:46,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:58:46,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857378632] [2023-11-30 08:58:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:58:46,514 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:58:46,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:46,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:58:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:58:46,515 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 350 [2023-11-30 08:58:46,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1399 transitions, 32469 flow. Second operand has 4 states, 4 states have (on average 287.75) internal successors, (1151), 4 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:46,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:46,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 350 [2023-11-30 08:58:46,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:50,455 INFO L124 PetriNetUnfolderBase]: 3619/12284 cut-off events. [2023-11-30 08:58:50,455 INFO L125 PetriNetUnfolderBase]: For 320469/329745 co-relation queries the response was YES. [2023-11-30 08:58:50,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97649 conditions, 12284 events. 3619/12284 cut-off events. For 320469/329745 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 107248 event pairs, 531 based on Foata normal form. 620/11118 useless extension candidates. Maximal degree in co-relation 19000. Up to 5005 conditions per place. [2023-11-30 08:58:50,605 INFO L140 encePairwiseOnDemand]: 344/350 looper letters, 470 selfloop transitions, 21 changer transitions 206/1399 dead transitions. [2023-11-30 08:58:50,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 1399 transitions, 34001 flow [2023-11-30 08:58:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:58:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:58:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1192 transitions. [2023-11-30 08:58:50,606 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8514285714285714 [2023-11-30 08:58:50,606 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1192 transitions. [2023-11-30 08:58:50,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1192 transitions. [2023-11-30 08:58:50,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:50,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1192 transitions. [2023-11-30 08:58:50,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:50,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:50,608 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:50,609 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 183 predicate places. [2023-11-30 08:58:50,609 INFO L500 AbstractCegarLoop]: Abstraction has has 485 places, 1399 transitions, 34001 flow [2023-11-30 08:58:50,609 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 287.75) internal successors, (1151), 4 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:50,609 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:50,609 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:50,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:50,815 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-30 08:58:50,816 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:50,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1558413810, now seen corresponding path program 1 times [2023-11-30 08:58:50,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72015248] [2023-11-30 08:58:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:50,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420474635] [2023-11-30 08:58:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:50,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:50,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:50,827 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:50,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-30 08:58:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:51,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:58:51,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:51,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:58:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:51,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:51,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72015248] [2023-11-30 08:58:51,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:51,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420474635] [2023-11-30 08:58:51,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420474635] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:58:51,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:58:51,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-30 08:58:51,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580076040] [2023-11-30 08:58:51,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:58:51,241 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 08:58:51,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 08:58:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-30 08:58:51,242 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 350 [2023-11-30 08:58:51,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1399 transitions, 34001 flow. Second operand has 10 states, 10 states have (on average 314.7) internal successors, (3147), 10 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:51,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:51,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 350 [2023-11-30 08:58:51,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:58:55,270 INFO L124 PetriNetUnfolderBase]: 3902/13859 cut-off events. [2023-11-30 08:58:55,270 INFO L125 PetriNetUnfolderBase]: For 364523/374211 co-relation queries the response was YES. [2023-11-30 08:58:55,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108420 conditions, 13859 events. 3902/13859 cut-off events. For 364523/374211 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 120234 event pairs, 629 based on Foata normal form. 240/12005 useless extension candidates. Maximal degree in co-relation 21789. Up to 5715 conditions per place. [2023-11-30 08:58:55,419 INFO L140 encePairwiseOnDemand]: 343/350 looper letters, 251 selfloop transitions, 17 changer transitions 206/1416 dead transitions. [2023-11-30 08:58:55,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1416 transitions, 34975 flow [2023-11-30 08:58:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 08:58:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 08:58:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4422 transitions. [2023-11-30 08:58:55,421 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9024489795918368 [2023-11-30 08:58:55,421 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4422 transitions. [2023-11-30 08:58:55,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4422 transitions. [2023-11-30 08:58:55,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:58:55,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4422 transitions. [2023-11-30 08:58:55,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 315.85714285714283) internal successors, (4422), 14 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:55,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:55,436 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:55,436 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 196 predicate places. [2023-11-30 08:58:55,436 INFO L500 AbstractCegarLoop]: Abstraction has has 498 places, 1416 transitions, 34975 flow [2023-11-30 08:58:55,437 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 314.7) internal successors, (3147), 10 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:55,437 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:58:55,437 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:58:55,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-30 08:58:55,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-30 08:58:55,642 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:58:55,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:58:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash 63891538, now seen corresponding path program 1 times [2023-11-30 08:58:55,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:58:55,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616034076] [2023-11-30 08:58:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:55,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:58:55,656 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:58:55,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48043417] [2023-11-30 08:58:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:58:55,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:58:55,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:58:55,657 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:58:55,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-30 08:58:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:58:55,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 08:58:55,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:58:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:55,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:58:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:58:56,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:58:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616034076] [2023-11-30 08:58:56,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:58:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48043417] [2023-11-30 08:58:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48043417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:58:56,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:58:56,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-30 08:58:56,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919675850] [2023-11-30 08:58:56,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:58:56,020 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-30 08:58:56,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:58:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-30 08:58:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-30 08:58:56,023 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:58:56,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1416 transitions, 34975 flow. Second operand has 22 states, 22 states have (on average 287.59090909090907) internal successors, (6327), 22 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:58:56,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:58:56,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:58:56,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:02,727 INFO L124 PetriNetUnfolderBase]: 3917/16093 cut-off events. [2023-11-30 08:59:02,727 INFO L125 PetriNetUnfolderBase]: For 385377/393735 co-relation queries the response was YES. [2023-11-30 08:59:02,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124660 conditions, 16093 events. 3917/16093 cut-off events. For 385377/393735 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 143770 event pairs, 565 based on Foata normal form. 222/14212 useless extension candidates. Maximal degree in co-relation 39860. Up to 6626 conditions per place. [2023-11-30 08:59:02,870 INFO L140 encePairwiseOnDemand]: 331/350 looper letters, 715 selfloop transitions, 359 changer transitions 206/1866 dead transitions. [2023-11-30 08:59:02,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 1866 transitions, 44135 flow [2023-11-30 08:59:02,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-30 08:59:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-30 08:59:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 9402 transitions. [2023-11-30 08:59:02,875 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8394642857142857 [2023-11-30 08:59:02,875 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 9402 transitions. [2023-11-30 08:59:02,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 9402 transitions. [2023-11-30 08:59:02,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:02,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 9402 transitions. [2023-11-30 08:59:02,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 293.8125) internal successors, (9402), 32 states have internal predecessors, (9402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:02,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 350.0) internal successors, (11550), 33 states have internal predecessors, (11550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:02,888 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 350.0) internal successors, (11550), 33 states have internal predecessors, (11550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:02,889 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 227 predicate places. [2023-11-30 08:59:02,889 INFO L500 AbstractCegarLoop]: Abstraction has has 529 places, 1866 transitions, 44135 flow [2023-11-30 08:59:02,889 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 287.59090909090907) internal successors, (6327), 22 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:02,890 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:02,890 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:02,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-30 08:59:03,095 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-30 08:59:03,095 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:03,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:03,096 INFO L85 PathProgramCache]: Analyzing trace with hash 620403693, now seen corresponding path program 1 times [2023-11-30 08:59:03,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:03,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191683323] [2023-11-30 08:59:03,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:03,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:03,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:03,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128144418] [2023-11-30 08:59:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:03,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:03,108 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:03,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-30 08:59:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:59:03,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:59:03,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:59:03,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:59:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191683323] [2023-11-30 08:59:03,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128144418] [2023-11-30 08:59:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128144418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:59:03,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:59:03,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:59:03,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442884018] [2023-11-30 08:59:03,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:59:03,286 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:59:03,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:59:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:59:03,287 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 350 [2023-11-30 08:59:03,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 1866 transitions, 44135 flow. Second operand has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:03,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:03,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 350 [2023-11-30 08:59:03,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:09,598 INFO L124 PetriNetUnfolderBase]: 4192/16385 cut-off events. [2023-11-30 08:59:09,598 INFO L125 PetriNetUnfolderBase]: For 462418/473335 co-relation queries the response was YES. [2023-11-30 08:59:09,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132713 conditions, 16385 events. 4192/16385 cut-off events. For 462418/473335 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 145235 event pairs, 660 based on Foata normal form. 553/14740 useless extension candidates. Maximal degree in co-relation 39878. Up to 6933 conditions per place. [2023-11-30 08:59:09,771 INFO L140 encePairwiseOnDemand]: 345/350 looper letters, 373 selfloop transitions, 8 changer transitions 206/1892 dead transitions. [2023-11-30 08:59:09,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 1892 transitions, 46660 flow [2023-11-30 08:59:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:59:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:59:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1259 transitions. [2023-11-30 08:59:09,772 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8992857142857142 [2023-11-30 08:59:09,772 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1259 transitions. [2023-11-30 08:59:09,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1259 transitions. [2023-11-30 08:59:09,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:09,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1259 transitions. [2023-11-30 08:59:09,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:09,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:09,774 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:09,775 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 229 predicate places. [2023-11-30 08:59:09,775 INFO L500 AbstractCegarLoop]: Abstraction has has 531 places, 1892 transitions, 46660 flow [2023-11-30 08:59:09,775 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:09,775 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:09,775 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:09,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-30 08:59:09,980 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-30 08:59:09,980 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:09,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2052646201, now seen corresponding path program 1 times [2023-11-30 08:59:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:09,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672652221] [2023-11-30 08:59:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:09,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:09,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675776380] [2023-11-30 08:59:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:09,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:09,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:09,993 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:10,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-30 08:59:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:59:10,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-30 08:59:10,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:59:10,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:59:10,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:10,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672652221] [2023-11-30 08:59:10,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:10,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675776380] [2023-11-30 08:59:10,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675776380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:59:10,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:59:10,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:59:10,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145658803] [2023-11-30 08:59:10,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:59:10,165 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:59:10,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:10,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:59:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:59:10,166 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 350 [2023-11-30 08:59:10,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1892 transitions, 46660 flow. Second operand has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:10,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:10,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 350 [2023-11-30 08:59:10,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:16,871 INFO L124 PetriNetUnfolderBase]: 4170/16301 cut-off events. [2023-11-30 08:59:16,871 INFO L125 PetriNetUnfolderBase]: For 477553/487610 co-relation queries the response was YES. [2023-11-30 08:59:16,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135690 conditions, 16301 events. 4170/16301 cut-off events. For 477553/487610 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 144312 event pairs, 622 based on Foata normal form. 568/14726 useless extension candidates. Maximal degree in co-relation 39896. Up to 6907 conditions per place. [2023-11-30 08:59:17,065 INFO L140 encePairwiseOnDemand]: 344/350 looper letters, 386 selfloop transitions, 7 changer transitions 206/1904 dead transitions. [2023-11-30 08:59:17,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1904 transitions, 48179 flow [2023-11-30 08:59:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:59:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:59:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1581 transitions. [2023-11-30 08:59:17,067 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9034285714285715 [2023-11-30 08:59:17,067 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1581 transitions. [2023-11-30 08:59:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1581 transitions. [2023-11-30 08:59:17,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:17,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1581 transitions. [2023-11-30 08:59:17,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 316.2) internal successors, (1581), 5 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:17,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:17,069 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:17,069 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 233 predicate places. [2023-11-30 08:59:17,070 INFO L500 AbstractCegarLoop]: Abstraction has has 535 places, 1904 transitions, 48179 flow [2023-11-30 08:59:17,070 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:17,070 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:17,070 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:17,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-30 08:59:17,275 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-30 08:59:17,275 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:17,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:17,275 INFO L85 PathProgramCache]: Analyzing trace with hash 289539766, now seen corresponding path program 1 times [2023-11-30 08:59:17,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:17,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40654620] [2023-11-30 08:59:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:17,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:17,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:17,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108695728] [2023-11-30 08:59:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:17,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:17,288 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:17,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-30 08:59:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:59:17,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:59:17,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:59:17,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:59:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:59:17,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:17,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40654620] [2023-11-30 08:59:17,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:17,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108695728] [2023-11-30 08:59:17,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108695728] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:59:17,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:59:17,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2023-11-30 08:59:17,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292967577] [2023-11-30 08:59:17,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:59:17,763 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 08:59:17,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:17,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 08:59:17,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-30 08:59:17,765 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 350 [2023-11-30 08:59:17,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1904 transitions, 48179 flow. Second operand has 19 states, 19 states have (on average 231.0) internal successors, (4389), 19 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:17,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:17,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 350 [2023-11-30 08:59:17,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:29,019 INFO L124 PetriNetUnfolderBase]: 5733/22511 cut-off events. [2023-11-30 08:59:29,020 INFO L125 PetriNetUnfolderBase]: For 704790/716129 co-relation queries the response was YES. [2023-11-30 08:59:29,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198409 conditions, 22511 events. 5733/22511 cut-off events. For 704790/716129 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 215187 event pairs, 642 based on Foata normal form. 658/20474 useless extension candidates. Maximal degree in co-relation 58474. Up to 9653 conditions per place. [2023-11-30 08:59:29,323 INFO L140 encePairwiseOnDemand]: 326/350 looper letters, 1705 selfloop transitions, 264 changer transitions 206/2472 dead transitions. [2023-11-30 08:59:29,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 2472 transitions, 71180 flow [2023-11-30 08:59:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 08:59:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 08:59:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5381 transitions. [2023-11-30 08:59:29,327 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.668447204968944 [2023-11-30 08:59:29,327 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5381 transitions. [2023-11-30 08:59:29,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5381 transitions. [2023-11-30 08:59:29,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:29,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5381 transitions. [2023-11-30 08:59:29,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 233.95652173913044) internal successors, (5381), 23 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:29,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:29,341 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:29,342 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 255 predicate places. [2023-11-30 08:59:29,342 INFO L500 AbstractCegarLoop]: Abstraction has has 557 places, 2472 transitions, 71180 flow [2023-11-30 08:59:29,343 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 231.0) internal successors, (4389), 19 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:29,343 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:29,343 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:29,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-30 08:59:29,548 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:29,548 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:29,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:29,549 INFO L85 PathProgramCache]: Analyzing trace with hash 9044583, now seen corresponding path program 1 times [2023-11-30 08:59:29,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:29,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294162070] [2023-11-30 08:59:29,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:29,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:29,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:29,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905934461] [2023-11-30 08:59:29,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:29,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:29,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:29,563 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:29,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-30 08:59:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:59:29,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 08:59:29,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:59:29,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:59:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:59:29,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:29,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294162070] [2023-11-30 08:59:29,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:29,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905934461] [2023-11-30 08:59:29,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905934461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:59:29,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 08:59:29,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-11-30 08:59:29,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326627129] [2023-11-30 08:59:29,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 08:59:29,855 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:59:29,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:59:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:59:29,857 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 08:59:29,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 2472 transitions, 71180 flow. Second operand has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:29,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:29,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 08:59:29,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:40,461 INFO L124 PetriNetUnfolderBase]: 5453/21829 cut-off events. [2023-11-30 08:59:40,462 INFO L125 PetriNetUnfolderBase]: For 742793/756603 co-relation queries the response was YES. [2023-11-30 08:59:40,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196686 conditions, 21829 events. 5453/21829 cut-off events. For 742793/756603 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 207740 event pairs, 639 based on Foata normal form. 717/20092 useless extension candidates. Maximal degree in co-relation 58788. Up to 9363 conditions per place. [2023-11-30 08:59:40,737 INFO L140 encePairwiseOnDemand]: 341/350 looper letters, 736 selfloop transitions, 20 changer transitions 206/2462 dead transitions. [2023-11-30 08:59:40,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 2462 transitions, 72620 flow [2023-11-30 08:59:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:59:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:59:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2057 transitions. [2023-11-30 08:59:40,739 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8395918367346938 [2023-11-30 08:59:40,739 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2057 transitions. [2023-11-30 08:59:40,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2057 transitions. [2023-11-30 08:59:40,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:40,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2057 transitions. [2023-11-30 08:59:40,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 293.85714285714283) internal successors, (2057), 7 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:40,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:40,742 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:40,743 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 261 predicate places. [2023-11-30 08:59:40,743 INFO L500 AbstractCegarLoop]: Abstraction has has 563 places, 2462 transitions, 72620 flow [2023-11-30 08:59:40,743 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:40,743 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:40,743 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:40,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-30 08:59:40,948 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:40,949 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:40,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1155021127, now seen corresponding path program 1 times [2023-11-30 08:59:40,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:40,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332371509] [2023-11-30 08:59:40,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:40,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:40,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:40,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95768730] [2023-11-30 08:59:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:40,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:40,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:40,961 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:40,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-30 08:59:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:59:41,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-30 08:59:41,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:59:41,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:59:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332371509] [2023-11-30 08:59:41,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95768730] [2023-11-30 08:59:41,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95768730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:59:41,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:59:41,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 08:59:41,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022477740] [2023-11-30 08:59:41,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:59:41,232 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:59:41,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:41,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:59:41,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:59:41,233 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 350 [2023-11-30 08:59:41,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 2462 transitions, 72620 flow. Second operand has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:41,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:41,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 350 [2023-11-30 08:59:41,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:59:54,706 INFO L124 PetriNetUnfolderBase]: 5798/22127 cut-off events. [2023-11-30 08:59:54,706 INFO L125 PetriNetUnfolderBase]: For 917868/933463 co-relation queries the response was YES. [2023-11-30 08:59:54,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211463 conditions, 22127 events. 5798/22127 cut-off events. For 917868/933463 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 207883 event pairs, 810 based on Foata normal form. 359/19769 useless extension candidates. Maximal degree in co-relation 62970. Up to 9716 conditions per place. [2023-11-30 08:59:55,156 INFO L140 encePairwiseOnDemand]: 326/350 looper letters, 1663 selfloop transitions, 68 changer transitions 265/2470 dead transitions. [2023-11-30 08:59:55,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 2470 transitions, 76536 flow [2023-11-30 08:59:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 08:59:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 08:59:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2642 transitions. [2023-11-30 08:59:55,158 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5391836734693878 [2023-11-30 08:59:55,158 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2642 transitions. [2023-11-30 08:59:55,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2642 transitions. [2023-11-30 08:59:55,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:59:55,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2642 transitions. [2023-11-30 08:59:55,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 188.71428571428572) internal successors, (2642), 14 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:55,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:55,163 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 350.0) internal successors, (5250), 15 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:55,163 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 274 predicate places. [2023-11-30 08:59:55,163 INFO L500 AbstractCegarLoop]: Abstraction has has 576 places, 2470 transitions, 76536 flow [2023-11-30 08:59:55,163 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:55,164 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:59:55,164 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:59:55,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-30 08:59:55,368 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:55,369 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 08:59:55,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:59:55,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1226666759, now seen corresponding path program 2 times [2023-11-30 08:59:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:59:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308385277] [2023-11-30 08:59:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:59:55,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:59:55,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 08:59:55,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294580301] [2023-11-30 08:59:55,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:59:55,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:59:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:59:55,382 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:59:55,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-30 08:59:55,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 08:59:55,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:59:55,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:59:55,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:59:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 08:59:55,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:59:55,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:59:55,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308385277] [2023-11-30 08:59:55,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 08:59:55,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294580301] [2023-11-30 08:59:55,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294580301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:59:55,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:59:55,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:59:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267082916] [2023-11-30 08:59:55,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:59:55,634 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:59:55,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:59:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:59:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:59:55,636 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 350 [2023-11-30 08:59:55,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 2470 transitions, 76536 flow. Second operand has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:59:55,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:59:55,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 350 [2023-11-30 08:59:55,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:00:07,235 INFO L124 PetriNetUnfolderBase]: 5699/21775 cut-off events. [2023-11-30 09:00:07,235 INFO L125 PetriNetUnfolderBase]: For 964750/984719 co-relation queries the response was YES. [2023-11-30 09:00:07,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214858 conditions, 21775 events. 5699/21775 cut-off events. For 964750/984719 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 206438 event pairs, 515 based on Foata normal form. 1067/20372 useless extension candidates. Maximal degree in co-relation 63043. Up to 9628 conditions per place. [2023-11-30 09:00:07,704 INFO L140 encePairwiseOnDemand]: 342/350 looper letters, 750 selfloop transitions, 29 changer transitions 265/2500 dead transitions. [2023-11-30 09:00:07,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 2500 transitions, 79858 flow [2023-11-30 09:00:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:00:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:00:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2300 transitions. [2023-11-30 09:00:07,705 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2023-11-30 09:00:07,705 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2300 transitions. [2023-11-30 09:00:07,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2300 transitions. [2023-11-30 09:00:07,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:00:07,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2300 transitions. [2023-11-30 09:00:07,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 287.5) internal successors, (2300), 8 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:07,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:07,713 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:07,713 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 280 predicate places. [2023-11-30 09:00:07,714 INFO L500 AbstractCegarLoop]: Abstraction has has 582 places, 2500 transitions, 79858 flow [2023-11-30 09:00:07,714 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:07,714 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:00:07,714 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:00:07,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-30 09:00:07,919 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-30 09:00:07,920 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:00:07,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:00:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 628037026, now seen corresponding path program 1 times [2023-11-30 09:00:07,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:00:07,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162329315] [2023-11-30 09:00:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:00:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:00:07,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:00:07,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062723452] [2023-11-30 09:00:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:00:07,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:00:07,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:00:07,949 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:00:07,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-30 09:00:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:00:08,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 09:00:08,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:00:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 09:00:08,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:00:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 09:00:14,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:00:14,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162329315] [2023-11-30 09:00:14,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:00:14,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062723452] [2023-11-30 09:00:14,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062723452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:00:14,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:00:14,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-30 09:00:14,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256298198] [2023-11-30 09:00:14,342 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:00:14,343 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 09:00:14,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:00:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 09:00:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=44, Unknown=3, NotChecked=0, Total=72 [2023-11-30 09:00:14,344 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 350 [2023-11-30 09:00:14,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 2500 transitions, 79858 flow. Second operand has 9 states, 9 states have (on average 302.8888888888889) internal successors, (2726), 9 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:14,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:00:14,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 350 [2023-11-30 09:00:14,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:00:19,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-30 09:00:31,408 INFO L124 PetriNetUnfolderBase]: 6818/24861 cut-off events. [2023-11-30 09:00:31,408 INFO L125 PetriNetUnfolderBase]: For 1070027/1088714 co-relation queries the response was YES. [2023-11-30 09:00:31,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257309 conditions, 24861 events. 6818/24861 cut-off events. For 1070027/1088714 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 237589 event pairs, 938 based on Foata normal form. 1246/23300 useless extension candidates. Maximal degree in co-relation 63067. Up to 10886 conditions per place. [2023-11-30 09:00:31,771 INFO L140 encePairwiseOnDemand]: 339/350 looper letters, 899 selfloop transitions, 31 changer transitions 265/2685 dead transitions. [2023-11-30 09:00:31,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 2685 transitions, 88676 flow [2023-11-30 09:00:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 09:00:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 09:00:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3082 transitions. [2023-11-30 09:00:31,773 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8805714285714286 [2023-11-30 09:00:31,773 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3082 transitions. [2023-11-30 09:00:31,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3082 transitions. [2023-11-30 09:00:31,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:00:31,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3082 transitions. [2023-11-30 09:00:31,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 308.2) internal successors, (3082), 10 states have internal predecessors, (3082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:31,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:31,777 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 350.0) internal successors, (3850), 11 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:31,777 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 289 predicate places. [2023-11-30 09:00:31,777 INFO L500 AbstractCegarLoop]: Abstraction has has 591 places, 2685 transitions, 88676 flow [2023-11-30 09:00:31,778 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 302.8888888888889) internal successors, (2726), 9 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:31,778 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:00:31,778 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:00:31,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-30 09:00:31,985 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:00:31,986 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:00:31,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:00:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 465391331, now seen corresponding path program 2 times [2023-11-30 09:00:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:00:31,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681348125] [2023-11-30 09:00:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:00:31,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:00:32,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:00:32,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511860452] [2023-11-30 09:00:32,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:00:32,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:00:32,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:00:32,161 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:00:32,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-30 09:00:32,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:00:32,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:00:32,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:00:32,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:00:32,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 09:00:32,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:00:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 09:00:32,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:00:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681348125] [2023-11-30 09:00:32,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:00:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511860452] [2023-11-30 09:00:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511860452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:00:32,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:00:32,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-30 09:00:32,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98174366] [2023-11-30 09:00:32,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:00:32,699 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:00:32,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:00:32,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:00:32,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:00:32,701 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 350 [2023-11-30 09:00:32,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 2685 transitions, 88676 flow. Second operand has 6 states, 6 states have (on average 286.1666666666667) internal successors, (1717), 6 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:32,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:00:32,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 350 [2023-11-30 09:00:32,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:00:48,184 INFO L124 PetriNetUnfolderBase]: 6874/25176 cut-off events. [2023-11-30 09:00:48,184 INFO L125 PetriNetUnfolderBase]: For 1089499/1109432 co-relation queries the response was YES. [2023-11-30 09:00:48,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266238 conditions, 25176 events. 6874/25176 cut-off events. For 1089499/1109432 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 240702 event pairs, 1185 based on Foata normal form. 1167/23551 useless extension candidates. Maximal degree in co-relation 63201. Up to 10915 conditions per place. [2023-11-30 09:00:48,553 INFO L140 encePairwiseOnDemand]: 340/350 looper letters, 741 selfloop transitions, 18 changer transitions 335/2684 dead transitions. [2023-11-30 09:00:48,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 2684 transitions, 90620 flow [2023-11-30 09:00:48,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:00:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:00:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2015 transitions. [2023-11-30 09:00:48,555 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8224489795918367 [2023-11-30 09:00:48,555 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2015 transitions. [2023-11-30 09:00:48,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2015 transitions. [2023-11-30 09:00:48,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:00:48,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2015 transitions. [2023-11-30 09:00:48,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 287.85714285714283) internal successors, (2015), 7 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:48,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:48,557 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 350.0) internal successors, (2800), 8 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:48,558 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 294 predicate places. [2023-11-30 09:00:48,558 INFO L500 AbstractCegarLoop]: Abstraction has has 596 places, 2684 transitions, 90620 flow [2023-11-30 09:00:48,558 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 286.1666666666667) internal successors, (1717), 6 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:48,558 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:00:48,558 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:00:48,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-30 09:00:48,762 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-30 09:00:48,763 INFO L425 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:00:48,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:00:48,763 INFO L85 PathProgramCache]: Analyzing trace with hash 130484290, now seen corresponding path program 1 times [2023-11-30 09:00:48,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:00:48,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459605181] [2023-11-30 09:00:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:00:48,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:00:48,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:00:48,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746838975] [2023-11-30 09:00:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:00:48,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:00:48,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:00:48,776 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:00:48,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-30 09:00:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:00:48,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 09:00:48,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:00:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:00:49,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:00:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:00:49,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:00:49,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459605181] [2023-11-30 09:00:49,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:00:49,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746838975] [2023-11-30 09:00:49,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746838975] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-30 09:00:49,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:00:49,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2023-11-30 09:00:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885384797] [2023-11-30 09:00:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:00:49,183 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 09:00:49,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:00:49,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 09:00:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-30 09:00:49,185 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 350 [2023-11-30 09:00:49,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 2684 transitions, 90620 flow. Second operand has 7 states, 7 states have (on average 253.57142857142858) internal successors, (1775), 7 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:00:49,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:00:49,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 350 [2023-11-30 09:00:49,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:06,989 INFO L124 PetriNetUnfolderBase]: 6414/24983 cut-off events. [2023-11-30 09:01:06,989 INFO L125 PetriNetUnfolderBase]: For 1209683/1224057 co-relation queries the response was YES. [2023-11-30 09:01:07,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270750 conditions, 24983 events. 6414/24983 cut-off events. For 1209683/1224057 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 243719 event pairs, 1124 based on Foata normal form. 485/23028 useless extension candidates. Maximal degree in co-relation 70010. Up to 10606 conditions per place. [2023-11-30 09:01:07,334 INFO L140 encePairwiseOnDemand]: 335/350 looper letters, 1694 selfloop transitions, 149 changer transitions 367/2762 dead transitions. [2023-11-30 09:01:07,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 2762 transitions, 98472 flow [2023-11-30 09:01:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:01:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:01:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2070 transitions. [2023-11-30 09:01:07,337 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7392857142857143 [2023-11-30 09:01:07,337 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2070 transitions. [2023-11-30 09:01:07,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2070 transitions. [2023-11-30 09:01:07,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:07,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2070 transitions. [2023-11-30 09:01:07,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 258.75) internal successors, (2070), 8 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:07,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:07,340 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:07,341 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 301 predicate places. [2023-11-30 09:01:07,341 INFO L500 AbstractCegarLoop]: Abstraction has has 603 places, 2762 transitions, 98472 flow [2023-11-30 09:01:07,341 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 253.57142857142858) internal successors, (1775), 7 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:07,341 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:07,341 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:01:07,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-30 09:01:07,546 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:07,547 INFO L425 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:01:07,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:07,548 INFO L85 PathProgramCache]: Analyzing trace with hash 379959606, now seen corresponding path program 1 times [2023-11-30 09:01:07,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:07,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728027704] [2023-11-30 09:01:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:07,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:07,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:01:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933848288] [2023-11-30 09:01:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:07,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:07,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:07,563 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:01:07,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-30 09:01:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:07,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-30 09:01:07,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:01:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:07,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:01:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:08,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:08,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728027704] [2023-11-30 09:01:08,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:01:08,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933848288] [2023-11-30 09:01:08,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933848288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:01:08,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:01:08,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2023-11-30 09:01:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289435906] [2023-11-30 09:01:08,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:01:08,236 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-30 09:01:08,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:08,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-30 09:01:08,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2023-11-30 09:01:08,239 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 350 [2023-11-30 09:01:08,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 2762 transitions, 98472 flow. Second operand has 27 states, 27 states have (on average 231.14814814814815) internal successors, (6241), 27 states have internal predecessors, (6241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:08,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:08,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 350 [2023-11-30 09:01:08,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:34,697 INFO L124 PetriNetUnfolderBase]: 9255/33479 cut-off events. [2023-11-30 09:01:34,697 INFO L125 PetriNetUnfolderBase]: For 1905140/1929624 co-relation queries the response was YES. [2023-11-30 09:01:34,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389801 conditions, 33479 events. 9255/33479 cut-off events. For 1905140/1929624 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 338447 event pairs, 1495 based on Foata normal form. 786/30737 useless extension candidates. Maximal degree in co-relation 93181. Up to 14891 conditions per place. [2023-11-30 09:01:35,164 INFO L140 encePairwiseOnDemand]: 326/350 looper letters, 2410 selfloop transitions, 399 changer transitions 367/3477 dead transitions. [2023-11-30 09:01:35,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 3477 transitions, 135425 flow [2023-11-30 09:01:35,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-30 09:01:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-11-30 09:01:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 7679 transitions. [2023-11-30 09:01:35,266 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6648484848484848 [2023-11-30 09:01:35,266 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 7679 transitions. [2023-11-30 09:01:35,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 7679 transitions. [2023-11-30 09:01:35,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:35,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 7679 transitions. [2023-11-30 09:01:35,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 232.6969696969697) internal successors, (7679), 33 states have internal predecessors, (7679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:35,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 350.0) internal successors, (11900), 34 states have internal predecessors, (11900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:35,278 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 350.0) internal successors, (11900), 34 states have internal predecessors, (11900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:35,279 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 333 predicate places. [2023-11-30 09:01:35,279 INFO L500 AbstractCegarLoop]: Abstraction has has 635 places, 3477 transitions, 135425 flow [2023-11-30 09:01:35,280 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.14814814814815) internal successors, (6241), 27 states have internal predecessors, (6241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:35,280 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:35,280 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:01:35,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-30 09:01:35,485 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-30 09:01:35,486 INFO L425 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:01:35,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 545963271, now seen corresponding path program 1 times [2023-11-30 09:01:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033959292] [2023-11-30 09:01:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:35,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:01:35,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550197299] [2023-11-30 09:01:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:35,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:35,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:35,502 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:01:35,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-30 09:01:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:35,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 09:01:35,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:01:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:01:35,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:01:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-30 09:01:35,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:35,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033959292] [2023-11-30 09:01:35,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:01:35,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550197299] [2023-11-30 09:01:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550197299] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-30 09:01:35,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:01:35,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-30 09:01:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061318345] [2023-11-30 09:01:35,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:35,926 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:01:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:35,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:01:35,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:01:35,927 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 350 [2023-11-30 09:01:35,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 3477 transitions, 135425 flow. Second operand has 5 states, 5 states have (on average 227.4) internal successors, (1137), 5 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:01:35,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:35,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 350 [2023-11-30 09:01:35,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:02,697 INFO L124 PetriNetUnfolderBase]: 9027/33808 cut-off events. [2023-11-30 09:02:02,697 INFO L125 PetriNetUnfolderBase]: For 1874891/1893362 co-relation queries the response was YES. [2023-11-30 09:02:02,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397168 conditions, 33808 events. 9027/33808 cut-off events. For 1874891/1893362 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 344751 event pairs, 1535 based on Foata normal form. 247/30736 useless extension candidates. Maximal degree in co-relation 94306. Up to 14603 conditions per place. [2023-11-30 09:02:03,294 INFO L140 encePairwiseOnDemand]: 334/350 looper letters, 1309 selfloop transitions, 10 changer transitions 367/3474 dead transitions. [2023-11-30 09:02:03,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 3474 transitions, 138609 flow [2023-11-30 09:02:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:02:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:02:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1367 transitions. [2023-11-30 09:02:03,312 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.650952380952381 [2023-11-30 09:02:03,312 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1367 transitions. [2023-11-30 09:02:03,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1367 transitions. [2023-11-30 09:02:03,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:03,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1367 transitions. [2023-11-30 09:02:03,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:03,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:03,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 350.0) internal successors, (2450), 7 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:03,315 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 337 predicate places. [2023-11-30 09:02:03,315 INFO L500 AbstractCegarLoop]: Abstraction has has 639 places, 3474 transitions, 138609 flow [2023-11-30 09:02:03,315 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.4) internal successors, (1137), 5 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:03,315 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:03,328 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:03,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-30 09:02:03,528 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-30 09:02:03,530 INFO L425 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:02:03,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1072065943, now seen corresponding path program 1 times [2023-11-30 09:02:03,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:03,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438762066] [2023-11-30 09:02:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:03,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:03,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:02:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448729196] [2023-11-30 09:02:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:03,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:03,558 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:02:03,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-30 09:02:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:03,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 09:02:03,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:02:04,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:02:04,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:04,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438762066] [2023-11-30 09:02:04,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:02:04,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448729196] [2023-11-30 09:02:04,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448729196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:04,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:04,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-30 09:02:04,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562391247] [2023-11-30 09:02:04,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:04,146 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:02:04,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:02:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:02:04,147 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 350 [2023-11-30 09:02:04,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 3474 transitions, 138609 flow. Second operand has 12 states, 12 states have (on average 233.5) internal successors, (2802), 12 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:04,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:04,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 350 [2023-11-30 09:02:04,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:32,633 INFO L124 PetriNetUnfolderBase]: 7960/28119 cut-off events. [2023-11-30 09:02:32,633 INFO L125 PetriNetUnfolderBase]: For 1719751/1738476 co-relation queries the response was YES. [2023-11-30 09:02:32,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341649 conditions, 28119 events. 7960/28119 cut-off events. For 1719751/1738476 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 270082 event pairs, 1434 based on Foata normal form. 243/25472 useless extension candidates. Maximal degree in co-relation 73084. Up to 11861 conditions per place. [2023-11-30 09:02:33,121 INFO L140 encePairwiseOnDemand]: 319/350 looper letters, 1982 selfloop transitions, 54 changer transitions 401/3049 dead transitions. [2023-11-30 09:02:33,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 3049 transitions, 121852 flow [2023-11-30 09:02:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 09:02:33,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 09:02:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5405 transitions. [2023-11-30 09:02:33,124 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2023-11-30 09:02:33,124 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5405 transitions. [2023-11-30 09:02:33,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5405 transitions. [2023-11-30 09:02:33,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:33,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5405 transitions. [2023-11-30 09:02:33,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 235.0) internal successors, (5405), 23 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:33,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:33,131 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 350.0) internal successors, (8400), 24 states have internal predecessors, (8400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:33,133 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 359 predicate places. [2023-11-30 09:02:33,133 INFO L500 AbstractCegarLoop]: Abstraction has has 661 places, 3049 transitions, 121852 flow [2023-11-30 09:02:33,133 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.5) internal successors, (2802), 12 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:33,133 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:33,133 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:33,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-30 09:02:33,339 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-30 09:02:33,340 INFO L425 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:02:33,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:33,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1783255880, now seen corresponding path program 1 times [2023-11-30 09:02:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:33,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277323909] [2023-11-30 09:02:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:33,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:33,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:02:33,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171562328] [2023-11-30 09:02:33,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:33,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:33,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:33,354 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:02:33,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-30 09:02:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:33,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-30 09:02:33,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-30 09:02:33,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:02:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-30 09:02:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:33,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277323909] [2023-11-30 09:02:33,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:02:33,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171562328] [2023-11-30 09:02:33,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171562328] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-30 09:02:33,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:02:33,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2023-11-30 09:02:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775041491] [2023-11-30 09:02:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:33,905 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 09:02:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 09:02:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-30 09:02:33,907 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 350 [2023-11-30 09:02:33,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 3049 transitions, 121852 flow. Second operand has 7 states, 7 states have (on average 278.7142857142857) internal successors, (1951), 7 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:33,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:33,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 350 [2023-11-30 09:02:33,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:58,412 INFO L124 PetriNetUnfolderBase]: 7361/27616 cut-off events. [2023-11-30 09:02:58,412 INFO L125 PetriNetUnfolderBase]: For 1767756/1786194 co-relation queries the response was YES. [2023-11-30 09:02:58,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344144 conditions, 27616 events. 7361/27616 cut-off events. For 1767756/1786194 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 268980 event pairs, 1795 based on Foata normal form. 346/25470 useless extension candidates. Maximal degree in co-relation 78513. Up to 11326 conditions per place. [2023-11-30 09:02:58,949 INFO L140 encePairwiseOnDemand]: 330/350 looper letters, 1400 selfloop transitions, 24 changer transitions 403/3060 dead transitions. [2023-11-30 09:02:58,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 3060 transitions, 124986 flow [2023-11-30 09:02:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:02:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:02:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2265 transitions. [2023-11-30 09:02:58,951 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8089285714285714 [2023-11-30 09:02:58,951 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2265 transitions. [2023-11-30 09:02:58,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2265 transitions. [2023-11-30 09:02:58,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:58,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2265 transitions. [2023-11-30 09:02:58,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 283.125) internal successors, (2265), 8 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:58,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:58,975 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:58,976 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 366 predicate places. [2023-11-30 09:02:58,976 INFO L500 AbstractCegarLoop]: Abstraction has has 668 places, 3060 transitions, 124986 flow [2023-11-30 09:02:58,976 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 278.7142857142857) internal successors, (1951), 7 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:58,976 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:58,976 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:59,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-30 09:02:59,198 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-30 09:02:59,198 INFO L425 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:02:59,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:59,199 INFO L85 PathProgramCache]: Analyzing trace with hash 930655688, now seen corresponding path program 1 times [2023-11-30 09:02:59,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:59,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704959069] [2023-11-30 09:02:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:59,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:02:59,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176602468] [2023-11-30 09:02:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:59,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:59,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:59,217 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:02:59,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-30 09:02:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:59,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:02:59,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-30 09:02:59,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:02:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-30 09:02:59,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:59,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704959069] [2023-11-30 09:02:59,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:02:59,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176602468] [2023-11-30 09:02:59,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176602468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:02:59,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:02:59,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-30 09:02:59,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136625445] [2023-11-30 09:02:59,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:02:59,606 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-30 09:02:59,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:59,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-30 09:02:59,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-30 09:02:59,608 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 350 [2023-11-30 09:02:59,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 3060 transitions, 124986 flow. Second operand has 14 states, 14 states have (on average 313.2857142857143) internal successors, (4386), 14 states have internal predecessors, (4386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:02:59,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:59,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 350 [2023-11-30 09:02:59,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:03:29,526 INFO L124 PetriNetUnfolderBase]: 10509/35221 cut-off events. [2023-11-30 09:03:29,526 INFO L125 PetriNetUnfolderBase]: For 2300889/2324158 co-relation queries the response was YES. [2023-11-30 09:03:29,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465272 conditions, 35221 events. 10509/35221 cut-off events. For 2300889/2324158 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 344386 event pairs, 2436 based on Foata normal form. 760/32585 useless extension candidates. Maximal degree in co-relation 78813. Up to 15038 conditions per place. [2023-11-30 09:03:30,242 INFO L140 encePairwiseOnDemand]: 343/350 looper letters, 1188 selfloop transitions, 78 changer transitions 403/3488 dead transitions. [2023-11-30 09:03:30,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 3488 transitions, 151346 flow [2023-11-30 09:03:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-30 09:03:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-30 09:03:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 6298 transitions. [2023-11-30 09:03:30,245 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8997142857142857 [2023-11-30 09:03:30,245 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 6298 transitions. [2023-11-30 09:03:30,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 6298 transitions. [2023-11-30 09:03:30,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:03:30,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 6298 transitions. [2023-11-30 09:03:30,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 314.9) internal successors, (6298), 20 states have internal predecessors, (6298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:03:30,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 350.0) internal successors, (7350), 21 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:03:30,252 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 350.0) internal successors, (7350), 21 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:03:30,253 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 385 predicate places. [2023-11-30 09:03:30,253 INFO L500 AbstractCegarLoop]: Abstraction has has 687 places, 3488 transitions, 151346 flow [2023-11-30 09:03:30,253 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 313.2857142857143) internal successors, (4386), 14 states have internal predecessors, (4386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:03:30,253 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:03:30,253 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:03:30,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-30 09:03:30,459 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:03:30,459 INFO L425 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:03:30,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:03:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash -889820888, now seen corresponding path program 1 times [2023-11-30 09:03:30,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:03:30,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824128765] [2023-11-30 09:03:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:03:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:03:30,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:03:30,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467237282] [2023-11-30 09:03:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:03:30,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:03:30,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:03:30,475 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:03:30,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-30 09:03:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:03:30,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 09:03:30,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:03:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-30 09:03:30,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:03:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-30 09:03:31,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:03:31,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824128765] [2023-11-30 09:03:31,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:03:31,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467237282] [2023-11-30 09:03:31,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467237282] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:03:31,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:03:31,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-11-30 09:03:31,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631443566] [2023-11-30 09:03:31,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:03:31,129 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:03:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:03:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:03:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:03:31,131 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 350 [2023-11-30 09:03:31,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 3488 transitions, 151346 flow. Second operand has 12 states, 12 states have (on average 195.58333333333334) internal successors, (2347), 12 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:03:31,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:03:31,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 350 [2023-11-30 09:03:31,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:04:13,384 INFO L124 PetriNetUnfolderBase]: 10693/36430 cut-off events. [2023-11-30 09:04:13,384 INFO L125 PetriNetUnfolderBase]: For 2327963/2345859 co-relation queries the response was YES. [2023-11-30 09:04:13,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489897 conditions, 36430 events. 10693/36430 cut-off events. For 2327963/2345859 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 357200 event pairs, 2985 based on Foata normal form. 228/33227 useless extension candidates. Maximal degree in co-relation 99982. Up to 15116 conditions per place. [2023-11-30 09:04:14,166 INFO L140 encePairwiseOnDemand]: 322/350 looper letters, 1701 selfloop transitions, 25 changer transitions 417/3649 dead transitions. [2023-11-30 09:04:14,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 706 places, 3649 transitions, 160574 flow [2023-11-30 09:04:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-30 09:04:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-30 09:04:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3921 transitions. [2023-11-30 09:04:14,169 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5601428571428572 [2023-11-30 09:04:14,169 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3921 transitions. [2023-11-30 09:04:14,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3921 transitions. [2023-11-30 09:04:14,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:04:14,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3921 transitions. [2023-11-30 09:04:14,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 196.05) internal successors, (3921), 20 states have internal predecessors, (3921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:14,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 350.0) internal successors, (7350), 21 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:14,175 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 350.0) internal successors, (7350), 21 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:14,175 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 404 predicate places. [2023-11-30 09:04:14,175 INFO L500 AbstractCegarLoop]: Abstraction has has 706 places, 3649 transitions, 160574 flow [2023-11-30 09:04:14,175 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 195.58333333333334) internal successors, (2347), 12 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:14,175 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:04:14,175 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:04:14,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-30 09:04:14,382 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:04:14,383 INFO L425 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:04:14,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:04:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2046244696, now seen corresponding path program 1 times [2023-11-30 09:04:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:04:14,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66314404] [2023-11-30 09:04:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:04:14,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:04:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224175246] [2023-11-30 09:04:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:04:14,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:04:14,399 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:04:14,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-30 09:04:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:04:14,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:04:14,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:04:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-30 09:04:14,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:04:14,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:04:14,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66314404] [2023-11-30 09:04:14,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:04:14,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224175246] [2023-11-30 09:04:14,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224175246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:04:14,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:04:14,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:04:14,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890975258] [2023-11-30 09:04:14,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:04:14,692 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:04:14,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:04:14,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:04:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:04:14,693 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 350 [2023-11-30 09:04:14,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 706 places, 3649 transitions, 160574 flow. Second operand has 5 states, 5 states have (on average 225.2) internal successors, (1126), 5 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:14,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:04:14,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 350 [2023-11-30 09:04:14,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:04:43,056 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][1518], [24453#(<= ~M~0 2), 23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 15741#true, 2749#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 12852#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 29131#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 7911#true, 10075#true, 17922#(<= 1 ~N~0), 326#L49-1true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 30734#true, 4009#true, 13981#true, 19415#true, 5368#true, 8428#true, 191#L86-4true, 25423#true, 987#true, 16321#true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 21420#(<= ~N~0 2147483647), 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 40#L56-9true, 18764#true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 1222#true, 32351#true, 15164#true, 475#true, 12295#true, 20052#true, 3154#true, 3564#true, 4911#true]) [2023-11-30 09:04:43,056 INFO L294 olderBase$Statistics]: this new event has 358 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 334 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 319 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 343 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][1519], [24453#(<= ~M~0 2), 23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 15741#true, 2749#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 12852#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 10622#true, 29131#true, 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 7911#true, 1460#true, 10075#true, 326#L49-1true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 30734#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 19415#true, 13981#true, 5368#true, 8428#true, 191#L86-4true, 25423#true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 987#true, 16321#true, 311#L57true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 18764#true, 1222#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 15164#true, 475#true, 12295#true, 20052#true, 3154#true, 3564#true, 4911#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0))]) [2023-11-30 09:04:43,056 INFO L294 olderBase$Statistics]: this new event has 358 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 334 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 319 ancestors and is cut-off event [2023-11-30 09:04:43,056 INFO L297 olderBase$Statistics]: existing Event has 343 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][1518], [24453#(<= ~M~0 2), 220#L49-2true, 23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 15741#true, 2749#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 7911#true, 1460#true, 10075#true, 17922#(<= 1 ~N~0), 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 30734#true, 4009#true, 19415#true, 5368#true, 13981#true, 8428#true, 191#L86-4true, 25423#true, 987#true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 16321#true, 40#L56-9true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 18764#true, 1222#true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 32351#true, 15164#true, 475#true, 12295#true, 20052#true, 3154#true, 3564#true, 4911#true]) [2023-11-30 09:04:43,267 INFO L294 olderBase$Statistics]: this new event has 359 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L297 olderBase$Statistics]: existing Event has 320 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L297 olderBase$Statistics]: existing Event has 335 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L297 olderBase$Statistics]: existing Event has 344 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][1519], [24453#(<= ~M~0 2), 220#L49-2true, 23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 15741#true, 2749#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 10622#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 7911#true, 1460#true, 10075#true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 30734#true, 4009#true, 5368#true, 13981#true, 19415#true, 8428#true, 191#L86-4true, 25423#true, 987#true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 16321#true, 311#L57true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 18764#true, 1222#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 475#true, 15164#true, 12295#true, 20052#true, 3154#true, 3564#true, 4911#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0))]) [2023-11-30 09:04:43,267 INFO L294 olderBase$Statistics]: this new event has 359 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L297 olderBase$Statistics]: existing Event has 320 ancestors and is cut-off event [2023-11-30 09:04:43,267 INFO L297 olderBase$Statistics]: existing Event has 335 ancestors and is cut-off event [2023-11-30 09:04:43,268 INFO L297 olderBase$Statistics]: existing Event has 344 ancestors and is cut-off event [2023-11-30 09:04:56,173 INFO L124 PetriNetUnfolderBase]: 10631/36293 cut-off events. [2023-11-30 09:04:56,174 INFO L125 PetriNetUnfolderBase]: For 2431775/2448586 co-relation queries the response was YES. [2023-11-30 09:04:56,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498488 conditions, 36293 events. 10631/36293 cut-off events. For 2431775/2448586 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 355696 event pairs, 2845 based on Foata normal form. 196/33108 useless extension candidates. Maximal degree in co-relation 89227. Up to 15039 conditions per place. [2023-11-30 09:04:57,149 INFO L140 encePairwiseOnDemand]: 334/350 looper letters, 1615 selfloop transitions, 14 changer transitions 417/3643 dead transitions. [2023-11-30 09:04:57,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 712 places, 3643 transitions, 164300 flow [2023-11-30 09:04:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:04:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:04:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1764 transitions. [2023-11-30 09:04:57,151 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.63 [2023-11-30 09:04:57,151 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1764 transitions. [2023-11-30 09:04:57,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1764 transitions. [2023-11-30 09:04:57,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:04:57,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1764 transitions. [2023-11-30 09:04:57,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.5) internal successors, (1764), 8 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:57,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:57,154 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 350.0) internal successors, (3150), 9 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:57,155 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 410 predicate places. [2023-11-30 09:04:57,155 INFO L500 AbstractCegarLoop]: Abstraction has has 712 places, 3643 transitions, 164300 flow [2023-11-30 09:04:57,155 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 225.2) internal successors, (1126), 5 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:57,155 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:04:57,155 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:04:57,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-30 09:04:57,361 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-30 09:04:57,361 INFO L425 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:04:57,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:04:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash -593530443, now seen corresponding path program 1 times [2023-11-30 09:04:57,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:04:57,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091300291] [2023-11-30 09:04:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:57,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:04:57,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:04:57,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592337598] [2023-11-30 09:04:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:04:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:04:57,382 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:04:57,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-30 09:04:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:04:57,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 09:04:57,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:04:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 09:04:57,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:04:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 09:04:58,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:04:58,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091300291] [2023-11-30 09:04:58,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:04:58,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592337598] [2023-11-30 09:04:58,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592337598] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:04:58,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:04:58,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-30 09:04:58,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511372563] [2023-11-30 09:04:58,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:04:58,787 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-30 09:04:58,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:04:58,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-30 09:04:58,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2023-11-30 09:04:58,789 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 350 [2023-11-30 09:04:58,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 3643 transitions, 164300 flow. Second operand has 22 states, 22 states have (on average 162.63636363636363) internal successors, (3578), 22 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:04:58,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:04:58,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 350 [2023-11-30 09:04:58,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:05:45,393 INFO L124 PetriNetUnfolderBase]: 10535/35577 cut-off events. [2023-11-30 09:05:45,393 INFO L125 PetriNetUnfolderBase]: For 2706423/2727014 co-relation queries the response was YES. [2023-11-30 09:05:45,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505733 conditions, 35577 events. 10535/35577 cut-off events. For 2706423/2727014 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 348975 event pairs, 2525 based on Foata normal form. 253/32482 useless extension candidates. Maximal degree in co-relation 87904. Up to 14965 conditions per place. [2023-11-30 09:05:46,160 INFO L140 encePairwiseOnDemand]: 313/350 looper letters, 2424 selfloop transitions, 282 changer transitions 633/3717 dead transitions. [2023-11-30 09:05:46,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 753 places, 3717 transitions, 172004 flow [2023-11-30 09:05:46,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-30 09:05:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-11-30 09:05:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6790 transitions. [2023-11-30 09:05:46,164 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2023-11-30 09:05:46,164 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6790 transitions. [2023-11-30 09:05:46,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6790 transitions. [2023-11-30 09:05:46,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:05:46,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6790 transitions. [2023-11-30 09:05:46,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 161.66666666666666) internal successors, (6790), 42 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:05:46,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 350.0) internal successors, (15050), 43 states have internal predecessors, (15050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:05:46,175 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 350.0) internal successors, (15050), 43 states have internal predecessors, (15050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:05:46,175 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 451 predicate places. [2023-11-30 09:05:46,175 INFO L500 AbstractCegarLoop]: Abstraction has has 753 places, 3717 transitions, 172004 flow [2023-11-30 09:05:46,176 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 162.63636363636363) internal successors, (3578), 22 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:05:46,176 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:05:46,176 INFO L232 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:05:46,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-30 09:05:46,381 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:05:46,382 INFO L425 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:05:46,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:05:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -335060747, now seen corresponding path program 1 times [2023-11-30 09:05:46,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:05:46,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121276830] [2023-11-30 09:05:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:05:46,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:05:46,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:05:46,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549507612] [2023-11-30 09:05:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:05:46,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:05:46,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:05:46,398 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:05:46,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-30 09:05:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:05:46,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-30 09:05:46,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:05:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:05:46,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:05:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:05:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:05:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121276830] [2023-11-30 09:05:47,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:05:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549507612] [2023-11-30 09:05:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549507612] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:05:47,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:05:47,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 45 [2023-11-30 09:05:47,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253067468] [2023-11-30 09:05:47,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:05:47,415 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-30 09:05:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:05:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-30 09:05:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-11-30 09:05:47,421 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 350 [2023-11-30 09:05:47,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 3717 transitions, 172004 flow. Second operand has 46 states, 46 states have (on average 287.8478260869565) internal successors, (13241), 46 states have internal predecessors, (13241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:05:47,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:05:47,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 350 [2023-11-30 09:05:47,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:06:41,559 INFO L124 PetriNetUnfolderBase]: 11167/42600 cut-off events. [2023-11-30 09:06:41,559 INFO L125 PetriNetUnfolderBase]: For 2798082/2815862 co-relation queries the response was YES. [2023-11-30 09:06:42,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591226 conditions, 42600 events. 11167/42600 cut-off events. For 2798082/2815862 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 424524 event pairs, 2994 based on Foata normal form. 210/38929 useless extension candidates. Maximal degree in co-relation 160481. Up to 17894 conditions per place. [2023-11-30 09:06:42,466 INFO L140 encePairwiseOnDemand]: 331/350 looper letters, 1785 selfloop transitions, 1011 changer transitions 633/4905 dead transitions. [2023-11-30 09:06:42,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 4905 transitions, 212360 flow [2023-11-30 09:06:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-30 09:06:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-30 09:06:42,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 19956 transitions. [2023-11-30 09:06:42,602 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8384873949579832 [2023-11-30 09:06:42,603 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 19956 transitions. [2023-11-30 09:06:42,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 19956 transitions. [2023-11-30 09:06:42,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:06:42,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 19956 transitions. [2023-11-30 09:06:42,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 293.47058823529414) internal successors, (19956), 68 states have internal predecessors, (19956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:06:42,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 350.0) internal successors, (24150), 69 states have internal predecessors, (24150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:06:42,633 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 350.0) internal successors, (24150), 69 states have internal predecessors, (24150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:06:42,633 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 518 predicate places. [2023-11-30 09:06:42,633 INFO L500 AbstractCegarLoop]: Abstraction has has 820 places, 4905 transitions, 212360 flow [2023-11-30 09:06:42,635 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 287.8478260869565) internal successors, (13241), 46 states have internal predecessors, (13241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:06:42,635 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:06:42,635 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:06:42,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-30 09:06:42,841 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-30 09:06:42,841 INFO L425 AbstractCegarLoop]: === Iteration 46 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:06:42,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:06:42,842 INFO L85 PathProgramCache]: Analyzing trace with hash -79098732, now seen corresponding path program 1 times [2023-11-30 09:06:42,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:06:42,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780686222] [2023-11-30 09:06:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:06:42,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:06:42,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:06:42,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290881816] [2023-11-30 09:06:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:06:42,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:06:42,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:06:42,867 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:06:42,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-30 09:06:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:06:43,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 09:06:43,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:06:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-30 09:06:43,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:06:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-30 09:06:44,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:06:44,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780686222] [2023-11-30 09:06:44,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:06:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290881816] [2023-11-30 09:06:44,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290881816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:06:44,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:06:44,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-30 09:06:44,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847722604] [2023-11-30 09:06:44,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:06:44,028 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-30 09:06:44,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:06:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-30 09:06:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-11-30 09:06:44,030 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 350 [2023-11-30 09:06:44,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 820 places, 4905 transitions, 212360 flow. Second operand has 16 states, 16 states have (on average 246.8125) internal successors, (3949), 16 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:06:44,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:06:44,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 350 [2023-11-30 09:06:44,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:07:42,541 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2394], [23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 7911#true, 10075#true, 17922#(<= 1 ~N~0), 326#L49-1true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 40#L56-9true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 20052#true, 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 18764#true, 1222#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,541 INFO L294 olderBase$Statistics]: this new event has 384 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 339 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 354 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 369 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2395], [23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 10622#true, 7911#true, 10075#true, 326#L49-1true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 18764#true, 1222#true, 32351#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,541 INFO L294 olderBase$Statistics]: this new event has 384 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 369 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 339 ancestors and is cut-off event [2023-11-30 09:07:42,541 INFO L297 olderBase$Statistics]: existing Event has 354 ancestors and is cut-off event [2023-11-30 09:07:42,973 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2394], [23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 7911#true, 10075#true, 17922#(<= 1 ~N~0), 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 30734#true, 33155#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 40#L56-9true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 20052#true, 220#L49-2true, 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 21420#(<= ~N~0 2147483647), 1222#true, 18764#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,973 INFO L294 olderBase$Statistics]: this new event has 385 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 370 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 340 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 355 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2395], [23063#(<= 1 ~M~0), 10061#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 10622#true, 7911#true, 10075#true, 4891#(<= 0 thread1Thread1of1ForFork1_~i~0), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 220#L49-2true, 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 6372#true, 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 1222#true, 18764#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,974 INFO L294 olderBase$Statistics]: this new event has 385 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 370 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 340 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 355 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2411], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 10622#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 143#L48-4true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 1460#true, 6875#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 1222#true, 18764#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,974 INFO L294 olderBase$Statistics]: this new event has 387 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 342 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 357 ancestors and is cut-off event [2023-11-30 09:07:42,974 INFO L297 olderBase$Statistics]: existing Event has 372 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2412], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 12852#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 29131#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 17922#(<= 1 ~N~0), 30734#true, 33155#true, 19415#true, 13981#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 40#L56-9true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 143#L48-4true, 20052#true, 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 1222#true, 18764#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,975 INFO L294 olderBase$Statistics]: this new event has 387 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 342 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 357 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 372 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2411], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 12852#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 29131#true, 10622#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 52#L48-6true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 1222#true, 18764#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,975 INFO L294 olderBase$Statistics]: this new event has 389 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 374 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 359 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 344 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2412], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 17922#(<= 1 ~N~0), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 52#L48-6true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 40#L56-9true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 20052#true, 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 1222#true, 18764#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,975 INFO L294 olderBase$Statistics]: this new event has 389 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 374 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 359 ancestors and is cut-off event [2023-11-30 09:07:42,975 INFO L297 olderBase$Statistics]: existing Event has 344 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2411], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 10622#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 30734#true, 33155#true, 13981#true, 19415#true, 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 174#L48-5true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 1222#true, 18764#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,976 INFO L294 olderBase$Statistics]: this new event has 388 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 358 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 373 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 343 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2412], [23063#(<= 1 ~M~0), 10067#(and (<= thread1Thread1of1ForFork1_~i~0 2147483646) (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 29131#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 17922#(<= 1 ~N~0), 33155#true, 30734#true, 19415#true, 13981#true, 25423#true, 987#true, 16321#true, 40#L56-9true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 20052#true, 15741#true, thread2Thread1of1ForFork0InUse, 11741#true, thread1Thread1of1ForFork1InUse, 174#L48-5true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 29129#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~L~0) (<= 1 ~L~0)), 4009#true, 5368#true, 8428#true, 191#L86-4true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 1222#true, 18764#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true]) [2023-11-30 09:07:42,976 INFO L294 olderBase$Statistics]: this new event has 388 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 358 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 373 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 343 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([838] L56-8-->L56-9: Formula: (<= v_~N~0_1 v_thread2Thread1of1ForFork0_~i~1_5) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_5, ~N~0=v_~N~0_1} AuxVars[] AssignedVars[][2471], [23063#(<= 1 ~M~0), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 12852#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 29131#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 17922#(<= 1 ~N~0), 33155#true, 30734#true, 13981#true, 19415#true, 10073#(and (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 25423#true, 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 40#L56-9true, 11198#(<= ~N~0 thread2Thread1of1ForFork0_~i~1), 15164#true, 475#true, 20052#true, 144#L48-7true, 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 4009#true, 5368#true, 8428#true, 191#L86-4true, 21420#(<= ~N~0 2147483647), 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 1222#true, 18764#true, 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true, 27816#(<= 1 ~L~0)]) [2023-11-30 09:07:42,976 INFO L294 olderBase$Statistics]: this new event has 390 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 375 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 345 ancestors and is cut-off event [2023-11-30 09:07:42,976 INFO L297 olderBase$Statistics]: existing Event has 360 ancestors and is cut-off event [2023-11-30 09:07:42,977 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([837] L56-8-->L57: Formula: (< v_thread2Thread1of1ForFork0_~i~1_3 v_~N~0_2) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_3, ~N~0=v_~N~0_2} AuxVars[] AssignedVars[][2472], [23063#(<= 1 ~M~0), 2749#true, 37408#(and (<= 1 thread2Thread1of1ForFork0_~i~1) (<= 1 ~M~0)), 23961#true, 26997#(<= (* ~N~0 ~M~0) ~L~0), 12852#true, 10622#true, 29131#true, 7911#true, 10075#true, 4909#(and (<= 0 |thread1Thread1of1ForFork1_#t~post1|) (<= 0 thread1Thread1of1ForFork1_~i~0)), 33155#true, 30734#true, 13981#true, 19415#true, 25423#true, 10073#(and (<= (* ~N~0 ~M~0) 2147483647) (<= |thread1Thread1of1ForFork1_#t~post1| 2147483646) (<= ~L~0 2147483647)), 987#true, 16321#true, 461#(and (<= 0 ~N~0) (<= ~N~0 2147483647) (not (= ~N~0 0))), 15164#true, 475#true, 20052#true, 18762#(and (<= 1 ~N~0) (<= (+ thread2Thread1of1ForFork0_~i~1 1) ~N~0)), 144#L48-7true, 15741#true, thread2Thread1of1ForFork0InUse, thread1Thread1of1ForFork1InUse, 11741#true, 6372#true, 752#(and (<= 0 ~N~0) (<= 0 ~M~0) (not (= ~N~0 0))), 2723#(and (<= (* ~N~0 ~M~0) 2147483647) (exists ((v_subst_2 Int) (v_subst_1 Int)) (and (<= ~L~0 (* v_subst_2 v_subst_1)) (<= (* v_subst_2 v_subst_1) 2147483647)))), 1460#true, 951#(and (<= 0 ~N~0) (not (= ~N~0 0)) (<= ~M~0 (div 2147483647 ~N~0))), 6875#true, 4009#true, 5368#true, 8428#true, 191#L86-4true, 7891#(<= 0 thread2Thread1of1ForFork0_~i~1), 311#L57true, 1222#true, 18764#true, 22629#(and (<= ~N~0 2147483647) (<= thread2Thread1of1ForFork0_~i~1 2147483646)), 32351#true, 12295#true, 3154#true, 3564#true, 34830#true, 4911#true, 27816#(<= 1 ~L~0)]) [2023-11-30 09:07:42,977 INFO L294 olderBase$Statistics]: this new event has 390 ancestors and is cut-off event [2023-11-30 09:07:42,977 INFO L297 olderBase$Statistics]: existing Event has 375 ancestors and is cut-off event [2023-11-30 09:07:42,977 INFO L297 olderBase$Statistics]: existing Event has 345 ancestors and is cut-off event [2023-11-30 09:07:42,977 INFO L297 olderBase$Statistics]: existing Event has 360 ancestors and is cut-off event [2023-11-30 09:08:07,445 INFO L124 PetriNetUnfolderBase]: 10982/41797 cut-off events. [2023-11-30 09:08:07,446 INFO L125 PetriNetUnfolderBase]: For 3048869/3070871 co-relation queries the response was YES. [2023-11-30 09:08:07,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600628 conditions, 41797 events. 10982/41797 cut-off events. For 3048869/3070871 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 416461 event pairs, 2711 based on Foata normal form. 1001/39045 useless extension candidates. Maximal degree in co-relation 166865. Up to 17730 conditions per place. [2023-11-30 09:08:08,323 INFO L140 encePairwiseOnDemand]: 330/350 looper letters, 2833 selfloop transitions, 304 changer transitions 672/4918 dead transitions. [2023-11-30 09:08:08,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 4918 transitions, 219262 flow [2023-11-30 09:08:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-30 09:08:08,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-30 09:08:08,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3966 transitions. [2023-11-30 09:08:08,326 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7082142857142857 [2023-11-30 09:08:08,326 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3966 transitions. [2023-11-30 09:08:08,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3966 transitions. [2023-11-30 09:08:08,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:08:08,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3966 transitions. [2023-11-30 09:08:08,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 247.875) internal successors, (3966), 16 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:08:08,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 350.0) internal successors, (5950), 17 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:08:08,331 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 350.0) internal successors, (5950), 17 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:08:08,331 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 532 predicate places. [2023-11-30 09:08:08,331 INFO L500 AbstractCegarLoop]: Abstraction has has 834 places, 4918 transitions, 219262 flow [2023-11-30 09:08:08,333 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 246.8125) internal successors, (3949), 16 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:08:08,333 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:08:08,333 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:08:08,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-30 09:08:08,540 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:08:08,540 INFO L425 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:08:08,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:08:08,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1911513836, now seen corresponding path program 1 times [2023-11-30 09:08:08,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:08:08,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977329215] [2023-11-30 09:08:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:08:08,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:08:08,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:08:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243769147] [2023-11-30 09:08:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:08:08,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:08:08,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:08:08,572 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:08:08,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-30 09:08:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:08:08,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-30 09:08:08,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:08:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:08:09,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:08:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:08:09,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:08:09,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977329215] [2023-11-30 09:08:09,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:08:09,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243769147] [2023-11-30 09:08:09,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243769147] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:08:09,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:08:09,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2023-11-30 09:08:09,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909086533] [2023-11-30 09:08:09,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:08:09,446 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-30 09:08:09,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:08:09,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-30 09:08:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=960, Unknown=0, NotChecked=0, Total=1190 [2023-11-30 09:08:09,449 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 350 [2023-11-30 09:08:09,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 4918 transitions, 219262 flow. Second operand has 35 states, 35 states have (on average 231.31428571428572) internal successors, (8096), 35 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:08:09,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:08:09,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 350 [2023-11-30 09:08:09,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:10:03,378 INFO L124 PetriNetUnfolderBase]: 13778/51840 cut-off events. [2023-11-30 09:10:03,379 INFO L125 PetriNetUnfolderBase]: For 3888210/3910160 co-relation queries the response was YES. [2023-11-30 09:10:04,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775891 conditions, 51840 events. 13778/51840 cut-off events. For 3888210/3910160 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 534702 event pairs, 3563 based on Foata normal form. 472/47877 useless extension candidates. Maximal degree in co-relation 207615. Up to 22121 conditions per place. [2023-11-30 09:10:04,781 INFO L140 encePairwiseOnDemand]: 326/350 looper letters, 4098 selfloop transitions, 680 changer transitions 672/5847 dead transitions. [2023-11-30 09:10:04,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 5847 transitions, 276136 flow [2023-11-30 09:10:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-30 09:10:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-11-30 09:10:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 9968 transitions. [2023-11-30 09:10:04,785 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6623255813953488 [2023-11-30 09:10:04,785 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 9968 transitions. [2023-11-30 09:10:04,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 9968 transitions. [2023-11-30 09:10:04,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:10:04,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 9968 transitions. [2023-11-30 09:10:04,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 231.8139534883721) internal successors, (9968), 43 states have internal predecessors, (9968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:10:04,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 350.0) internal successors, (15400), 44 states have internal predecessors, (15400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:10:04,798 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 350.0) internal successors, (15400), 44 states have internal predecessors, (15400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:10:04,799 INFO L307 CegarLoopForPetriNet]: 302 programPoint places, 574 predicate places. [2023-11-30 09:10:04,799 INFO L500 AbstractCegarLoop]: Abstraction has has 876 places, 5847 transitions, 276136 flow [2023-11-30 09:10:04,800 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 231.31428571428572) internal successors, (8096), 35 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:10:04,800 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:10:04,800 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:10:04,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-30 09:10:05,004 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:10:05,005 INFO L425 AbstractCegarLoop]: === Iteration 48 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-11-30 09:10:05,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:10:05,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1842907487, now seen corresponding path program 1 times [2023-11-30 09:10:05,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:10:05,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174571355] [2023-11-30 09:10:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:10:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:10:05,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 09:10:05,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879565926] [2023-11-30 09:10:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:10:05,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:10:05,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:10:05,047 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:10:05,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-30 09:10:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:10:05,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-30 09:10:05,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:10:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-30 09:10:05,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:10:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 17 proven. 40 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-30 09:10:09,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:10:09,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174571355] [2023-11-30 09:10:09,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 09:10:09,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879565926] [2023-11-30 09:10:09,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879565926] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:10:09,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-30 09:10:09,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-30 09:10:09,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309440664] [2023-11-30 09:10:09,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-30 09:10:09,661 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-30 09:10:09,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:10:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-30 09:10:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2023-11-30 09:10:09,664 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 350 [2023-11-30 09:10:09,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 876 places, 5847 transitions, 276136 flow. Second operand has 26 states, 26 states have (on average 230.1153846153846) internal successors, (5983), 26 states have internal predecessors, (5983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:10:09,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:10:09,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 350 [2023-11-30 09:10:09,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 09:10:41,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 09:10:41,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 09:10:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-30 09:10:41,251 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2023-11-30 09:10:41,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-30 09:10:41,453 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-30 09:10:41,454 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). [2023-11-30 09:10:41,455 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2023-11-30 09:10:41,455 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2023-11-30 09:10:41,455 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2023-11-30 09:10:41,456 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 38 remaining) [2023-11-30 09:10:41,457 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2023-11-30 09:10:41,458 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2023-11-30 09:10:41,459 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:10:41,481 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 09:10:41,481 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 09:10:41,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 09:10:41 BasicIcfg [2023-11-30 09:10:41,498 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 09:10:41,499 INFO L158 Benchmark]: Toolchain (without parser) took 833646.13ms. Allocated memory was 530.6MB in the beginning and 7.3GB in the end (delta: 6.7GB). Free memory was 487.8MB in the beginning and 1.8GB in the end (delta: -1.3GB). Peak memory consumption was 5.4GB. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 383.8MB. Free memory is still 333.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.19ms. Allocated memory is still 530.6MB. Free memory was 487.4MB in the beginning and 475.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.95ms. Allocated memory is still 530.6MB. Free memory was 475.5MB in the beginning and 473.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 530.6MB. Free memory was 473.0MB in the beginning and 471.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: RCFGBuilder took 452.35ms. Allocated memory is still 530.6MB. Free memory was 470.9MB in the beginning and 442.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-11-30 09:10:41,499 INFO L158 Benchmark]: TraceAbstraction took 832930.66ms. Allocated memory was 530.6MB in the beginning and 7.3GB in the end (delta: 6.7GB). Free memory was 441.5MB in the beginning and 1.8GB in the end (delta: -1.4GB). Peak memory consumption was 5.4GB. Max. memory is 16.0GB. [2023-11-30 09:10:41,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 383.8MB. Free memory is still 333.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 199.19ms. Allocated memory is still 530.6MB. Free memory was 487.4MB in the beginning and 475.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.95ms. Allocated memory is still 530.6MB. Free memory was 475.5MB in the beginning and 473.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 530.6MB. Free memory was 473.0MB in the beginning and 471.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 452.35ms. Allocated memory is still 530.6MB. Free memory was 470.9MB in the beginning and 442.4MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 832930.66ms. Allocated memory was 530.6MB in the beginning and 7.3GB in the end (delta: 6.7GB). Free memory was 441.5MB in the beginning and 1.8GB in the end (delta: -1.4GB). Peak memory consumption was 5.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 224/350 universal loopers) in iteration 48,while PetriNetUnfolder was constructing finite prefix that currently has 180858 conditions, 12362 events (2746/12361 cut-off events. For 1444987/1455634 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 128171 event pairs, 532 based on Foata normal form. 460/12367 useless extension candidates. Maximal degree in co-relation 54319. Up to 4111 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 380 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 832.8s, OverallIterations: 48, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 771.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 7275 SdHoareTripleChecker+Valid, 44.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7275 mSDsluCounter, 10078 SdHoareTripleChecker+Invalid, 42.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 571 IncrementalHoareTripleChecker+Unchecked, 7973 mSDsCounter, 724 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15513 IncrementalHoareTripleChecker+Invalid, 16828 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 724 mSolverCounterUnsat, 2105 mSDtfsCounter, 15513 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13750 GetRequests, 12924 SyntacticMatches, 23 SemanticMatches, 803 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 6473 ImplicationChecksByTransitivity, 70.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276136occurred in iteration=47, InterpolantAutomatonStates: 640, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 41.9s InterpolantComputationTime, 8651 NumberOfCodeBlocks, 8485 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 13320 ConstructedInterpolants, 602 QuantifiedInterpolants, 32322 SizeOfPredicates, 250 NumberOfNonLiveVariables, 19174 ConjunctsInSsa, 344 ConjunctsInUnsatCore, 70 InterpolantComputations, 29 PerfectInterpolantSequences, 856/2550 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown