/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/goblint-regression/04-mutex_36-trylock_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:21:28,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:21:28,522 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 07:21:28,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:21:28,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:21:28,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:21:28,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:21:28,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:21:28,537 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:21:28,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:21:28,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:21:28,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:21:28,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:21:28,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:21:28,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:21:28,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:21:28,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:21:28,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:21:28,539 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:21:28,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:21:28,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:21:28,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:21:28,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:21:28,540 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:21:28,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:21:28,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:28,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:21:28,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:21:28,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:21:28,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:21:28,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:21:28,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:21:28,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:21:28,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:21:28,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:21:28,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:21:28,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:21:28,686 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:21:28,688 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:21:28,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-30 07:21:29,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:21:29,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:21:29,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-30 07:21:29,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee352148/1ad618e0f70a41dda28066a915d74abe/FLAGe1682f780 [2023-11-30 07:21:29,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee352148/1ad618e0f70a41dda28066a915d74abe [2023-11-30 07:21:29,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:21:29,845 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:21:29,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:29,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:21:29,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:21:29,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:29" (1/1) ... [2023-11-30 07:21:29,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f106e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:29, skipping insertion in model container [2023-11-30 07:21:29,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:29" (1/1) ... [2023-11-30 07:21:29,893 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:21:30,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:30,422 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:21:30,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:30,590 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:21:30,590 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:21:30,590 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:21:30,590 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 07:21:30,595 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:21:30,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30 WrapperNode [2023-11-30 07:21:30,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:30,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:30,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:21:30,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:21:30,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,646 INFO L138 Inliner]: procedures = 525, calls = 71, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2023-11-30 07:21:30,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:30,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:21:30,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:21:30,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:21:30,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:21:30,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:21:30,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:21:30,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:21:30,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (1/1) ... [2023-11-30 07:21:30,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:30,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:30,696 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 07:21:30,709 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 07:21:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-11-30 07:21:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-11-30 07:21:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-11-30 07:21:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:21:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:21:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-30 07:21:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:21:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-30 07:21:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:21:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:21:30,724 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 07:21:30,914 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:21:30,917 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:21:31,130 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:21:31,146 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:21:31,146 INFO L309 CfgBuilder]: Removed 19 assume(true) statements. [2023-11-30 07:21:31,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:31 BoogieIcfgContainer [2023-11-30 07:21:31,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:21:31,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:21:31,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:21:31,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:21:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:21:29" (1/3) ... [2023-11-30 07:21:31,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b77f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:31, skipping insertion in model container [2023-11-30 07:21:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:30" (2/3) ... [2023-11-30 07:21:31,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b77f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:31, skipping insertion in model container [2023-11-30 07:21:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:31" (3/3) ... [2023-11-30 07:21:31,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2023-11-30 07:21:31,163 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:21:31,163 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-30 07:21:31,163 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:21:31,235 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 07:21:31,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 268 transitions, 550 flow [2023-11-30 07:21:31,308 INFO L124 PetriNetUnfolderBase]: 32/266 cut-off events. [2023-11-30 07:21:31,308 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 07:21:31,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 266 events. 32/266 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 659 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 164. Up to 5 conditions per place. [2023-11-30 07:21:31,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 268 transitions, 550 flow [2023-11-30 07:21:31,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 235 transitions, 479 flow [2023-11-30 07:21:31,333 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:21:31,337 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;@bbaefd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:21:31,338 INFO L363 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-30 07:21:31,344 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:21:31,344 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-30 07:21:31,344 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:21:31,344 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:31,344 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 07:21:31,345 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:31,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:31,349 INFO L85 PathProgramCache]: Analyzing trace with hash 509468678, now seen corresponding path program 1 times [2023-11-30 07:21:31,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:31,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804598556] [2023-11-30 07:21:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:31,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:31,652 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 07:21:31,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:31,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804598556] [2023-11-30 07:21:31,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804598556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:31,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:31,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138845647] [2023-11-30 07:21:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:31,659 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:31,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:31,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:31,684 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 268 [2023-11-30 07:21:31,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 235 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 221.75) internal successors, (887), 4 states have internal predecessors, (887), 0 states have call successors, (0), 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 07:21:31,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:31,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 268 [2023-11-30 07:21:31,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:31,801 INFO L124 PetriNetUnfolderBase]: 16/369 cut-off events. [2023-11-30 07:21:31,802 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-30 07:21:31,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 369 events. 16/369 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1556 event pairs, 8 based on Foata normal form. 68/397 useless extension candidates. Maximal degree in co-relation 296. Up to 29 conditions per place. [2023-11-30 07:21:31,808 INFO L140 encePairwiseOnDemand]: 247/268 looper letters, 14 selfloop transitions, 3 changer transitions 0/203 dead transitions. [2023-11-30 07:21:31,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 203 transitions, 449 flow [2023-11-30 07:21:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1135 transitions. [2023-11-30 07:21:31,822 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8470149253731343 [2023-11-30 07:21:31,823 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1135 transitions. [2023-11-30 07:21:31,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1135 transitions. [2023-11-30 07:21:31,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:31,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1135 transitions. [2023-11-30 07:21:31,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 0 states have call successors, (0), 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 07:21:31,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:31,838 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:31,840 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, -4 predicate places. [2023-11-30 07:21:31,841 INFO L500 AbstractCegarLoop]: Abstraction has has 210 places, 203 transitions, 449 flow [2023-11-30 07:21:31,841 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 221.75) internal successors, (887), 4 states have internal predecessors, (887), 0 states have call successors, (0), 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 07:21:31,841 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:31,841 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] [2023-11-30 07:21:31,842 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:21:31,842 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:31,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1386339632, now seen corresponding path program 1 times [2023-11-30 07:21:31,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:31,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785995277] [2023-11-30 07:21:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:31,899 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 07:21:31,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:31,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785995277] [2023-11-30 07:21:31,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785995277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:31,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:31,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 07:21:31,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159639026] [2023-11-30 07:21:31,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:31,901 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:21:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:21:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:21:31,903 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 268 [2023-11-30 07:21:31,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 203 transitions, 449 flow. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 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 07:21:31,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:31,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 268 [2023-11-30 07:21:31,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:31,960 INFO L124 PetriNetUnfolderBase]: 16/368 cut-off events. [2023-11-30 07:21:31,960 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-30 07:21:31,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 368 events. 16/368 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1557 event pairs, 8 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 313. Up to 28 conditions per place. [2023-11-30 07:21:31,963 INFO L140 encePairwiseOnDemand]: 266/268 looper letters, 12 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2023-11-30 07:21:31,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 202 transitions, 471 flow [2023-11-30 07:21:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:21:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:21:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2023-11-30 07:21:31,965 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.849502487562189 [2023-11-30 07:21:31,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2023-11-30 07:21:31,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2023-11-30 07:21:31,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:31,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2023-11-30 07:21:31,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 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 07:21:31,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 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 07:21:31,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 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 07:21:31,969 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, -3 predicate places. [2023-11-30 07:21:31,969 INFO L500 AbstractCegarLoop]: Abstraction has has 211 places, 202 transitions, 471 flow [2023-11-30 07:21:31,970 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 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 07:21:31,970 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:31,970 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] [2023-11-30 07:21:31,970 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:21:31,971 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:31,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash 481335748, now seen corresponding path program 1 times [2023-11-30 07:21:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:31,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021236168] [2023-11-30 07:21:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:31,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:32,181 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 07:21:32,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:32,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021236168] [2023-11-30 07:21:32,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021236168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:32,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:32,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:32,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392998217] [2023-11-30 07:21:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:32,186 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:32,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:32,191 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:21:32,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 202 transitions, 471 flow. Second operand has 4 states, 4 states have (on average 222.25) internal successors, (889), 4 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:32,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:32,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:21:32,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:32,365 INFO L124 PetriNetUnfolderBase]: 127/1001 cut-off events. [2023-11-30 07:21:32,365 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2023-11-30 07:21:32,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 1001 events. 127/1001 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6422 event pairs, 14 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 1182. Up to 157 conditions per place. [2023-11-30 07:21:32,372 INFO L140 encePairwiseOnDemand]: 260/268 looper letters, 40 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2023-11-30 07:21:32,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 227 transitions, 669 flow [2023-11-30 07:21:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:32,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1155 transitions. [2023-11-30 07:21:32,375 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8619402985074627 [2023-11-30 07:21:32,375 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1155 transitions. [2023-11-30 07:21:32,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1155 transitions. [2023-11-30 07:21:32,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:32,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1155 transitions. [2023-11-30 07:21:32,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 231.0) internal successors, (1155), 5 states have internal predecessors, (1155), 0 states have call successors, (0), 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 07:21:32,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:32,380 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:32,381 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2023-11-30 07:21:32,381 INFO L500 AbstractCegarLoop]: Abstraction has has 215 places, 227 transitions, 669 flow [2023-11-30 07:21:32,382 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 222.25) internal successors, (889), 4 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:32,382 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:32,382 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] [2023-11-30 07:21:32,382 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:21:32,382 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:32,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash -486943798, now seen corresponding path program 1 times [2023-11-30 07:21:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212571624] [2023-11-30 07:21:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:32,483 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 07:21:32,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:32,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212571624] [2023-11-30 07:21:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212571624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:32,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:32,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:32,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489298131] [2023-11-30 07:21:32,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:32,484 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:32,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:32,485 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-30 07:21:32,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 227 transitions, 669 flow. Second operand has 4 states, 4 states have (on average 223.75) internal successors, (895), 4 states have internal predecessors, (895), 0 states have call successors, (0), 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 07:21:32,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:32,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-30 07:21:32,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:32,659 INFO L124 PetriNetUnfolderBase]: 219/1108 cut-off events. [2023-11-30 07:21:32,660 INFO L125 PetriNetUnfolderBase]: For 1119/1129 co-relation queries the response was YES. [2023-11-30 07:21:32,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1108 events. 219/1108 cut-off events. For 1119/1129 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7661 event pairs, 12 based on Foata normal form. 0/958 useless extension candidates. Maximal degree in co-relation 1922. Up to 307 conditions per place. [2023-11-30 07:21:32,667 INFO L140 encePairwiseOnDemand]: 261/268 looper letters, 43 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2023-11-30 07:21:32,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 244 transitions, 875 flow [2023-11-30 07:21:32,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1146 transitions. [2023-11-30 07:21:32,670 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8552238805970149 [2023-11-30 07:21:32,670 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1146 transitions. [2023-11-30 07:21:32,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1146 transitions. [2023-11-30 07:21:32,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:32,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1146 transitions. [2023-11-30 07:21:32,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 229.2) internal successors, (1146), 5 states have internal predecessors, (1146), 0 states have call successors, (0), 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 07:21:32,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:32,675 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:32,676 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 5 predicate places. [2023-11-30 07:21:32,676 INFO L500 AbstractCegarLoop]: Abstraction has has 219 places, 244 transitions, 875 flow [2023-11-30 07:21:32,677 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 223.75) internal successors, (895), 4 states have internal predecessors, (895), 0 states have call successors, (0), 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 07:21:32,677 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:32,677 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 07:21:32,677 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:21:32,677 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:32,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:32,677 INFO L85 PathProgramCache]: Analyzing trace with hash 329025871, now seen corresponding path program 1 times [2023-11-30 07:21:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047914551] [2023-11-30 07:21:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:32,792 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 07:21:32,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:32,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047914551] [2023-11-30 07:21:32,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047914551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:32,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:32,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:32,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118772787] [2023-11-30 07:21:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:32,794 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:32,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:32,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:32,796 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 268 [2023-11-30 07:21:32,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 244 transitions, 875 flow. Second operand has 4 states, 4 states have (on average 226.5) internal successors, (906), 4 states have internal predecessors, (906), 0 states have call successors, (0), 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 07:21:32,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:32,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 268 [2023-11-30 07:21:32,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:33,042 INFO L124 PetriNetUnfolderBase]: 463/2165 cut-off events. [2023-11-30 07:21:33,042 INFO L125 PetriNetUnfolderBase]: For 3860/3932 co-relation queries the response was YES. [2023-11-30 07:21:33,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4737 conditions, 2165 events. 463/2165 cut-off events. For 3860/3932 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17863 event pairs, 46 based on Foata normal form. 21/1840 useless extension candidates. Maximal degree in co-relation 4172. Up to 598 conditions per place. [2023-11-30 07:21:33,060 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 70 selfloop transitions, 4 changer transitions 0/280 dead transitions. [2023-11-30 07:21:33,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 280 transitions, 1361 flow [2023-11-30 07:21:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:33,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1158 transitions. [2023-11-30 07:21:33,062 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8641791044776119 [2023-11-30 07:21:33,062 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1158 transitions. [2023-11-30 07:21:33,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1158 transitions. [2023-11-30 07:21:33,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:33,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1158 transitions. [2023-11-30 07:21:33,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 231.6) internal successors, (1158), 5 states have internal predecessors, (1158), 0 states have call successors, (0), 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 07:21:33,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:33,068 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:33,069 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 9 predicate places. [2023-11-30 07:21:33,069 INFO L500 AbstractCegarLoop]: Abstraction has has 223 places, 280 transitions, 1361 flow [2023-11-30 07:21:33,070 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 226.5) internal successors, (906), 4 states have internal predecessors, (906), 0 states have call successors, (0), 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 07:21:33,070 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:33,070 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:21:33,070 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:21:33,072 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:33,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash 865284779, now seen corresponding path program 1 times [2023-11-30 07:21:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:33,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739520983] [2023-11-30 07:21:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:33,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739520983] [2023-11-30 07:21:33,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739520983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:33,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925777788] [2023-11-30 07:21:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:33,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:33,218 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 07:21:33,240 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 07:21:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:33,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:21:33,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:33,415 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 07:21:33,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:21:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925777788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:33,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:21:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-30 07:21:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403696555] [2023-11-30 07:21:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:33,417 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:21:33,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:21:33,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:33,418 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:21:33,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 280 transitions, 1361 flow. Second operand has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 0 states have call successors, (0), 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 07:21:33,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:33,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:21:33,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:33,851 INFO L124 PetriNetUnfolderBase]: 403/1926 cut-off events. [2023-11-30 07:21:33,851 INFO L125 PetriNetUnfolderBase]: For 4961/5152 co-relation queries the response was YES. [2023-11-30 07:21:33,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4924 conditions, 1926 events. 403/1926 cut-off events. For 4961/5152 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 15186 event pairs, 39 based on Foata normal form. 25/1695 useless extension candidates. Maximal degree in co-relation 4318. Up to 480 conditions per place. [2023-11-30 07:21:33,914 INFO L140 encePairwiseOnDemand]: 263/268 looper letters, 91 selfloop transitions, 5 changer transitions 0/290 dead transitions. [2023-11-30 07:21:33,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 290 transitions, 1679 flow [2023-11-30 07:21:33,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:21:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:21:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 910 transitions. [2023-11-30 07:21:33,916 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2023-11-30 07:21:33,916 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 910 transitions. [2023-11-30 07:21:33,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 910 transitions. [2023-11-30 07:21:33,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:33,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 910 transitions. [2023-11-30 07:21:33,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 227.5) internal successors, (910), 4 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:33,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 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 07:21:33,920 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 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 07:21:33,920 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 10 predicate places. [2023-11-30 07:21:33,920 INFO L500 AbstractCegarLoop]: Abstraction has has 224 places, 290 transitions, 1679 flow [2023-11-30 07:21:33,921 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 0 states have call successors, (0), 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 07:21:33,921 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:33,921 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:21:33,931 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 07:21:34,129 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,SelfDestructingSolverStorable5 [2023-11-30 07:21:34,129 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:34,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1054025177, now seen corresponding path program 1 times [2023-11-30 07:21:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510350832] [2023-11-30 07:21:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:34,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:34,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510350832] [2023-11-30 07:21:34,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510350832] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:34,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776325766] [2023-11-30 07:21:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:34,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:34,286 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 07:21:34,314 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 07:21:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:34,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:21:34,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:34,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:21:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:34,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776325766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:21:34,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:21:34,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 07:21:34,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179206179] [2023-11-30 07:21:34,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:21:34,524 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 07:21:34,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:34,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 07:21:34,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 07:21:34,527 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:21:34,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 290 transitions, 1679 flow. Second operand has 12 states, 12 states have (on average 223.41666666666666) internal successors, (2681), 12 states have internal predecessors, (2681), 0 states have call successors, (0), 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 07:21:34,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:34,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:21:34,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:35,228 INFO L124 PetriNetUnfolderBase]: 1067/5027 cut-off events. [2023-11-30 07:21:35,228 INFO L125 PetriNetUnfolderBase]: For 18003/18553 co-relation queries the response was YES. [2023-11-30 07:21:35,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14761 conditions, 5027 events. 1067/5027 cut-off events. For 18003/18553 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 49024 event pairs, 97 based on Foata normal form. 105/4566 useless extension candidates. Maximal degree in co-relation 13036. Up to 1497 conditions per place. [2023-11-30 07:21:35,269 INFO L140 encePairwiseOnDemand]: 261/268 looper letters, 270 selfloop transitions, 14 changer transitions 0/478 dead transitions. [2023-11-30 07:21:35,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 478 transitions, 4731 flow [2023-11-30 07:21:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 07:21:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 07:21:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3214 transitions. [2023-11-30 07:21:35,274 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8566098081023454 [2023-11-30 07:21:35,274 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3214 transitions. [2023-11-30 07:21:35,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3214 transitions. [2023-11-30 07:21:35,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:35,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3214 transitions. [2023-11-30 07:21:35,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 229.57142857142858) internal successors, (3214), 14 states have internal predecessors, (3214), 0 states have call successors, (0), 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 07:21:35,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 states have internal predecessors, (4020), 0 states have call successors, (0), 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 07:21:35,285 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 states have internal predecessors, (4020), 0 states have call successors, (0), 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 07:21:35,285 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 23 predicate places. [2023-11-30 07:21:35,285 INFO L500 AbstractCegarLoop]: Abstraction has has 237 places, 478 transitions, 4731 flow [2023-11-30 07:21:35,286 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 223.41666666666666) internal successors, (2681), 12 states have internal predecessors, (2681), 0 states have call successors, (0), 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 07:21:35,286 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:35,286 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] [2023-11-30 07:21:35,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 07:21:35,491 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,SelfDestructingSolverStorable6 [2023-11-30 07:21:35,492 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:35,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1272597693, now seen corresponding path program 1 times [2023-11-30 07:21:35,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:35,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400937195] [2023-11-30 07:21:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:35,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:35,582 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 07:21:35,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400937195] [2023-11-30 07:21:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400937195] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903175143] [2023-11-30 07:21:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:35,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:35,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:35,583 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 07:21:35,609 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 07:21:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:35,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:21:35,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:35,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:21:35,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903175143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:35,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:21:35,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:21:35,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507334802] [2023-11-30 07:21:35,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:35,717 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:21:35,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:35,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:21:35,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:21:35,718 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-30 07:21:35,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 478 transitions, 4731 flow. Second operand has 6 states, 6 states have (on average 224.16666666666666) internal successors, (1345), 6 states have internal predecessors, (1345), 0 states have call successors, (0), 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 07:21:35,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:35,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-30 07:21:35,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:36,400 INFO L124 PetriNetUnfolderBase]: 1052/4975 cut-off events. [2023-11-30 07:21:36,400 INFO L125 PetriNetUnfolderBase]: For 21414/22035 co-relation queries the response was YES. [2023-11-30 07:21:36,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16073 conditions, 4975 events. 1052/4975 cut-off events. For 21414/22035 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 48345 event pairs, 97 based on Foata normal form. 106/4550 useless extension candidates. Maximal degree in co-relation 14209. Up to 1482 conditions per place. [2023-11-30 07:21:36,442 INFO L140 encePairwiseOnDemand]: 263/268 looper letters, 252 selfloop transitions, 7 changer transitions 0/493 dead transitions. [2023-11-30 07:21:36,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 493 transitions, 5498 flow [2023-11-30 07:21:36,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:21:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:21:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1596 transitions. [2023-11-30 07:21:36,445 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8507462686567164 [2023-11-30 07:21:36,445 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1596 transitions. [2023-11-30 07:21:36,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1596 transitions. [2023-11-30 07:21:36,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:36,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1596 transitions. [2023-11-30 07:21:36,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 228.0) internal successors, (1596), 7 states have internal predecessors, (1596), 0 states have call successors, (0), 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 07:21:36,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 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 07:21:36,450 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 268.0) internal successors, (2144), 8 states have internal predecessors, (2144), 0 states have call successors, (0), 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 07:21:36,451 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 28 predicate places. [2023-11-30 07:21:36,451 INFO L500 AbstractCegarLoop]: Abstraction has has 242 places, 493 transitions, 5498 flow [2023-11-30 07:21:36,451 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.16666666666666) internal successors, (1345), 6 states have internal predecessors, (1345), 0 states have call successors, (0), 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 07:21:36,451 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:36,452 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:21:36,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 07:21:36,656 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:36,657 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:36,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash -795821994, now seen corresponding path program 1 times [2023-11-30 07:21:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:36,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170090447] [2023-11-30 07:21:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:21:36,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:36,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170090447] [2023-11-30 07:21:36,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170090447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:36,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:36,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:36,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797668011] [2023-11-30 07:21:36,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:36,709 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:21:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:21:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:21:36,710 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-30 07:21:36,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 493 transitions, 5498 flow. Second operand has 4 states, 4 states have (on average 225.5) internal successors, (902), 4 states have internal predecessors, (902), 0 states have call successors, (0), 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 07:21:36,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:36,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-30 07:21:36,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:37,367 INFO L124 PetriNetUnfolderBase]: 1037/4925 cut-off events. [2023-11-30 07:21:37,367 INFO L125 PetriNetUnfolderBase]: For 24889/25476 co-relation queries the response was YES. [2023-11-30 07:21:37,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17287 conditions, 4925 events. 1037/4925 cut-off events. For 24889/25476 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 47799 event pairs, 104 based on Foata normal form. 103/4532 useless extension candidates. Maximal degree in co-relation 15296. Up to 1467 conditions per place. [2023-11-30 07:21:37,409 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 284 selfloop transitions, 9 changer transitions 0/527 dead transitions. [2023-11-30 07:21:37,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 527 transitions, 6729 flow [2023-11-30 07:21:37,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:21:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:21:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1137 transitions. [2023-11-30 07:21:37,411 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8485074626865672 [2023-11-30 07:21:37,411 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1137 transitions. [2023-11-30 07:21:37,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1137 transitions. [2023-11-30 07:21:37,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:37,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1137 transitions. [2023-11-30 07:21:37,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 07:21:37,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:37,415 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 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 07:21:37,416 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 31 predicate places. [2023-11-30 07:21:37,416 INFO L500 AbstractCegarLoop]: Abstraction has has 245 places, 527 transitions, 6729 flow [2023-11-30 07:21:37,416 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 225.5) internal successors, (902), 4 states have internal predecessors, (902), 0 states have call successors, (0), 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 07:21:37,416 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:37,416 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:21:37,417 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:21:37,417 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:37,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -502985976, now seen corresponding path program 1 times [2023-11-30 07:21:37,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:37,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444212749] [2023-11-30 07:21:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:37,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:37,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:37,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444212749] [2023-11-30 07:21:37,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444212749] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:37,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668160616] [2023-11-30 07:21:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:37,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:37,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:37,523 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 07:21:37,525 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 07:21:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:37,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 07:21:37,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:37,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:21:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668160616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:21:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-30 07:21:37,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272975540] [2023-11-30 07:21:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:37,658 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 07:21:37,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 07:21:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:37,660 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 268 [2023-11-30 07:21:37,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 527 transitions, 6729 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 07:21:37,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:37,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 268 [2023-11-30 07:21:37,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:38,306 INFO L124 PetriNetUnfolderBase]: 1032/4797 cut-off events. [2023-11-30 07:21:38,306 INFO L125 PetriNetUnfolderBase]: For 39343/42050 co-relation queries the response was YES. [2023-11-30 07:21:38,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17861 conditions, 4797 events. 1032/4797 cut-off events. For 39343/42050 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 46646 event pairs, 11 based on Foata normal form. 440/4764 useless extension candidates. Maximal degree in co-relation 15755. Up to 1426 conditions per place. [2023-11-30 07:21:38,351 INFO L140 encePairwiseOnDemand]: 264/268 looper letters, 312 selfloop transitions, 5 changer transitions 0/554 dead transitions. [2023-11-30 07:21:38,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 554 transitions, 7949 flow [2023-11-30 07:21:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:21:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:21:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 921 transitions. [2023-11-30 07:21:38,353 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8591417910447762 [2023-11-30 07:21:38,353 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 921 transitions. [2023-11-30 07:21:38,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 921 transitions. [2023-11-30 07:21:38,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:38,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 921 transitions. [2023-11-30 07:21:38,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 230.25) internal successors, (921), 4 states have internal predecessors, (921), 0 states have call successors, (0), 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 07:21:38,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 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 07:21:38,356 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 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 07:21:38,357 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 33 predicate places. [2023-11-30 07:21:38,357 INFO L500 AbstractCegarLoop]: Abstraction has has 247 places, 554 transitions, 7949 flow [2023-11-30 07:21:38,357 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 07:21:38,357 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:38,357 INFO L232 CegarLoopForPetriNet]: trace histogram [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] [2023-11-30 07:21:38,363 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 07:21:38,562 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:38,563 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:38,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1587304670, now seen corresponding path program 1 times [2023-11-30 07:21:38,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:38,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095564495] [2023-11-30 07:21:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:38,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:38,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:38,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095564495] [2023-11-30 07:21:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095564495] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:38,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073430517] [2023-11-30 07:21:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:38,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:38,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:38,672 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 07:21:38,688 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 07:21:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:38,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:21:38,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:38,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:21:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:38,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073430517] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:21:38,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:21:38,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 07:21:38,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703463523] [2023-11-30 07:21:38,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:21:38,863 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 07:21:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 07:21:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 07:21:38,866 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 268 [2023-11-30 07:21:38,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 554 transitions, 7949 flow. Second operand has 12 states, 12 states have (on average 227.5) internal successors, (2730), 12 states have internal predecessors, (2730), 0 states have call successors, (0), 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 07:21:38,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:38,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 268 [2023-11-30 07:21:38,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:40,746 INFO L124 PetriNetUnfolderBase]: 2329/10848 cut-off events. [2023-11-30 07:21:40,746 INFO L125 PetriNetUnfolderBase]: For 99635/110404 co-relation queries the response was YES. [2023-11-30 07:21:40,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41948 conditions, 10848 events. 2329/10848 cut-off events. For 99635/110404 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 118922 event pairs, 30 based on Foata normal form. 1392/11200 useless extension candidates. Maximal degree in co-relation 39727. Up to 3225 conditions per place. [2023-11-30 07:21:40,861 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 707 selfloop transitions, 14 changer transitions 0/958 dead transitions. [2023-11-30 07:21:40,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 958 transitions, 18190 flow [2023-11-30 07:21:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 07:21:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 07:21:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3230 transitions. [2023-11-30 07:21:40,866 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8608742004264393 [2023-11-30 07:21:40,866 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3230 transitions. [2023-11-30 07:21:40,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3230 transitions. [2023-11-30 07:21:40,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:40,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3230 transitions. [2023-11-30 07:21:40,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 230.71428571428572) internal successors, (3230), 14 states have internal predecessors, (3230), 0 states have call successors, (0), 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 07:21:40,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 states have internal predecessors, (4020), 0 states have call successors, (0), 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 07:21:40,875 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 268.0) internal successors, (4020), 15 states have internal predecessors, (4020), 0 states have call successors, (0), 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 07:21:40,876 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 46 predicate places. [2023-11-30 07:21:40,876 INFO L500 AbstractCegarLoop]: Abstraction has has 260 places, 958 transitions, 18190 flow [2023-11-30 07:21:40,876 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 227.5) internal successors, (2730), 12 states have internal predecessors, (2730), 0 states have call successors, (0), 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 07:21:40,876 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:40,877 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 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] [2023-11-30 07:21:40,882 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 07:21:41,082 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-30 07:21:41,082 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:41,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 297307808, now seen corresponding path program 2 times [2023-11-30 07:21:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716895005] [2023-11-30 07:21:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:41,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716895005] [2023-11-30 07:21:41,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716895005] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278701639] [2023-11-30 07:21:41,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:21:41,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:41,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:41,303 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 07:21:41,307 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 07:21:41,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 07:21:41,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:21:41,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 07:21:41,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:41,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:21:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:41,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278701639] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:21:41,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:21:41,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-30 07:21:41,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086318541] [2023-11-30 07:21:41,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:21:41,673 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-30 07:21:41,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-30 07:21:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-30 07:21:41,678 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:21:41,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 958 transitions, 18190 flow. Second operand has 24 states, 24 states have (on average 223.45833333333334) internal successors, (5363), 24 states have internal predecessors, (5363), 0 states have call successors, (0), 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 07:21:41,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:41,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:21:41,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:47,431 INFO L124 PetriNetUnfolderBase]: 5432/24964 cut-off events. [2023-11-30 07:21:47,431 INFO L125 PetriNetUnfolderBase]: For 279237/303813 co-relation queries the response was YES. [2023-11-30 07:21:47,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106742 conditions, 24964 events. 5432/24964 cut-off events. For 279237/303813 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 304414 event pairs, 30 based on Foata normal form. 2222/25065 useless extension candidates. Maximal degree in co-relation 101126. Up to 7944 conditions per place. [2023-11-30 07:21:47,677 INFO L140 encePairwiseOnDemand]: 261/268 looper letters, 1926 selfloop transitions, 32 changer transitions 0/2164 dead transitions. [2023-11-30 07:21:47,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 2164 transitions, 50306 flow [2023-11-30 07:21:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-30 07:21:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-30 07:21:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7342 transitions. [2023-11-30 07:21:47,686 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8561100746268657 [2023-11-30 07:21:47,686 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7342 transitions. [2023-11-30 07:21:47,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7342 transitions. [2023-11-30 07:21:47,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:47,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7342 transitions. [2023-11-30 07:21:47,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 229.4375) internal successors, (7342), 32 states have internal predecessors, (7342), 0 states have call successors, (0), 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 07:21:47,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 268.0) internal successors, (8844), 33 states have internal predecessors, (8844), 0 states have call successors, (0), 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 07:21:47,704 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 268.0) internal successors, (8844), 33 states have internal predecessors, (8844), 0 states have call successors, (0), 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 07:21:47,705 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 77 predicate places. [2023-11-30 07:21:47,705 INFO L500 AbstractCegarLoop]: Abstraction has has 291 places, 2164 transitions, 50306 flow [2023-11-30 07:21:47,706 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 223.45833333333334) internal successors, (5363), 24 states have internal predecessors, (5363), 0 states have call successors, (0), 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 07:21:47,706 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:47,706 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 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] [2023-11-30 07:21:47,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 07:21:47,911 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:47,912 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:21:47,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:47,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1421986377, now seen corresponding path program 2 times [2023-11-30 07:21:47,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:47,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723649214] [2023-11-30 07:21:47,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:47,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723649214] [2023-11-30 07:21:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723649214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:21:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655706475] [2023-11-30 07:21:48,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 07:21:48,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:21:48,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:48,226 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 07:21:48,252 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 07:21:48,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 07:21:48,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:21:48,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 07:21:48,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:21:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:48,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:21:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:21:48,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655706475] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:21:48,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:21:48,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-30 07:21:48,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460609176] [2023-11-30 07:21:48,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:21:48,562 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-30 07:21:48,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-30 07:21:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-30 07:21:48,565 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 268 [2023-11-30 07:21:48,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 2164 transitions, 50306 flow. Second operand has 24 states, 24 states have (on average 227.75) internal successors, (5466), 24 states have internal predecessors, (5466), 0 states have call successors, (0), 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 07:21:48,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:48,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 268 [2023-11-30 07:21:48,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:05,275 INFO L124 PetriNetUnfolderBase]: 11564/52202 cut-off events. [2023-11-30 07:22:05,275 INFO L125 PetriNetUnfolderBase]: For 689640/774227 co-relation queries the response was YES. [2023-11-30 07:22:05,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235389 conditions, 52202 events. 11564/52202 cut-off events. For 689640/774227 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 683126 event pairs, 60 based on Foata normal form. 9486/57390 useless extension candidates. Maximal degree in co-relation 229496. Up to 16784 conditions per place. [2023-11-30 07:22:06,108 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 4079 selfloop transitions, 32 changer transitions 0/4426 dead transitions. [2023-11-30 07:22:06,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 4426 transitions, 117592 flow [2023-11-30 07:22:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-30 07:22:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-30 07:22:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7379 transitions. [2023-11-30 07:22:06,117 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8604244402985075 [2023-11-30 07:22:06,124 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7379 transitions. [2023-11-30 07:22:06,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7379 transitions. [2023-11-30 07:22:06,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:06,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7379 transitions. [2023-11-30 07:22:06,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 230.59375) internal successors, (7379), 32 states have internal predecessors, (7379), 0 states have call successors, (0), 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 07:22:06,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 268.0) internal successors, (8844), 33 states have internal predecessors, (8844), 0 states have call successors, (0), 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 07:22:06,168 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 268.0) internal successors, (8844), 33 states have internal predecessors, (8844), 0 states have call successors, (0), 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 07:22:06,192 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 108 predicate places. [2023-11-30 07:22:06,193 INFO L500 AbstractCegarLoop]: Abstraction has has 322 places, 4426 transitions, 117592 flow [2023-11-30 07:22:06,194 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 227.75) internal successors, (5466), 24 states have internal predecessors, (5466), 0 states have call successors, (0), 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 07:22:06,194 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:06,194 INFO L232 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 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] [2023-11-30 07:22:06,204 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 07:22:06,401 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:06,402 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:22:06,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -836487744, now seen corresponding path program 3 times [2023-11-30 07:22:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428673589] [2023-11-30 07:22:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428673589] [2023-11-30 07:22:07,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428673589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:22:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069888824] [2023-11-30 07:22:07,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 07:22:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:22:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:22:07,078 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 07:22:07,080 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 07:22:07,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-30 07:22:07,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:22:07,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-30 07:22:07,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:22:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:07,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:22:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:22:07,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069888824] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:22:07,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:22:07,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-11-30 07:22:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710307668] [2023-11-30 07:22:07,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:22:07,896 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-30 07:22:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:07,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-30 07:22:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-11-30 07:22:07,903 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:22:07,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 4426 transitions, 117592 flow. Second operand has 48 states, 48 states have (on average 223.47916666666666) internal successors, (10727), 48 states have internal predecessors, (10727), 0 states have call successors, (0), 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 07:22:07,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:07,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:22:07,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:23:22,552 INFO L124 PetriNetUnfolderBase]: 24749/110954 cut-off events. [2023-11-30 07:23:22,552 INFO L125 PetriNetUnfolderBase]: For 1761192/1922670 co-relation queries the response was YES. [2023-11-30 07:23:23,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541621 conditions, 110954 events. 24749/110954 cut-off events. For 1761192/1922670 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 1555101 event pairs, 60 based on Foata normal form. 11918/114257 useless extension candidates. Maximal degree in co-relation 528109. Up to 36638 conditions per place. [2023-11-30 07:23:24,331 INFO L140 encePairwiseOnDemand]: 261/268 looper letters, 9270 selfloop transitions, 68 changer transitions 0/9574 dead transitions. [2023-11-30 07:23:24,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 9574 transitions, 279476 flow [2023-11-30 07:23:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-30 07:23:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-30 07:23:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 15598 transitions. [2023-11-30 07:23:24,341 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8559043020193152 [2023-11-30 07:23:24,341 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 15598 transitions. [2023-11-30 07:23:24,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 15598 transitions. [2023-11-30 07:23:24,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:23:24,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 15598 transitions. [2023-11-30 07:23:24,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 229.38235294117646) internal successors, (15598), 68 states have internal predecessors, (15598), 0 states have call successors, (0), 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 07:23:24,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 268.0) internal successors, (18492), 69 states have internal predecessors, (18492), 0 states have call successors, (0), 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 07:23:24,391 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 268.0) internal successors, (18492), 69 states have internal predecessors, (18492), 0 states have call successors, (0), 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 07:23:24,391 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 175 predicate places. [2023-11-30 07:23:24,391 INFO L500 AbstractCegarLoop]: Abstraction has has 389 places, 9574 transitions, 279476 flow [2023-11-30 07:23:24,393 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 223.47916666666666) internal successors, (10727), 48 states have internal predecessors, (10727), 0 states have call successors, (0), 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 07:23:24,393 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:23:24,393 INFO L232 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 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] [2023-11-30 07:23:24,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 07:23:24,599 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,SelfDestructingSolverStorable13 [2023-11-30 07:23:24,600 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:23:24,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:23:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1187140329, now seen corresponding path program 3 times [2023-11-30 07:23:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:23:24,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230113302] [2023-11-30 07:23:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:23:24,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:23:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:23:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:23:25,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:23:25,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230113302] [2023-11-30 07:23:25,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230113302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:23:25,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887987848] [2023-11-30 07:23:25,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 07:23:25,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:23:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:23:25,424 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 07:23:25,426 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 07:23:25,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-30 07:23:25,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:23:25,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-30 07:23:25,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:23:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:23:25,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:23:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:23:26,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887987848] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:23:26,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:23:26,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-11-30 07:23:26,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948163109] [2023-11-30 07:23:26,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:23:26,182 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-30 07:23:26,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:23:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-30 07:23:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-11-30 07:23:26,188 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 268 [2023-11-30 07:23:26,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 9574 transitions, 279476 flow. Second operand has 48 states, 48 states have (on average 227.875) internal successors, (10938), 48 states have internal predecessors, (10938), 0 states have call successors, (0), 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 07:23:26,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:23:26,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 268 [2023-11-30 07:23:26,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:28:19,656 INFO L124 PetriNetUnfolderBase]: 50981/226604 cut-off events. [2023-11-30 07:28:19,670 INFO L125 PetriNetUnfolderBase]: For 4220440/4723095 co-relation queries the response was YES. [2023-11-30 07:28:22,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158364 conditions, 226604 events. 50981/226604 cut-off events. For 4220440/4723095 co-relation queries the response was YES. Maximal size of possible extension queue 1198. Compared 3362873 event pairs, 120 based on Foata normal form. 47460/256777 useless extension candidates. Maximal degree in co-relation 1144251. Up to 75196 conditions per place. [2023-11-30 07:28:24,202 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 19031 selfloop transitions, 68 changer transitions 0/19570 dead transitions. [2023-11-30 07:28:24,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 19570 transitions, 619666 flow [2023-11-30 07:28:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-30 07:28:24,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-11-30 07:28:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 15677 transitions. [2023-11-30 07:28:24,218 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.860239244951712 [2023-11-30 07:28:24,219 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 15677 transitions. [2023-11-30 07:28:24,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 15677 transitions. [2023-11-30 07:28:24,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:28:24,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 15677 transitions. [2023-11-30 07:28:24,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 230.5441176470588) internal successors, (15677), 68 states have internal predecessors, (15677), 0 states have call successors, (0), 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 07:28:24,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 268.0) internal successors, (18492), 69 states have internal predecessors, (18492), 0 states have call successors, (0), 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 07:28:24,280 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 268.0) internal successors, (18492), 69 states have internal predecessors, (18492), 0 states have call successors, (0), 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 07:28:24,281 INFO L307 CegarLoopForPetriNet]: 214 programPoint places, 242 predicate places. [2023-11-30 07:28:24,281 INFO L500 AbstractCegarLoop]: Abstraction has has 456 places, 19570 transitions, 619666 flow [2023-11-30 07:28:24,282 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 227.875) internal successors, (10938), 48 states have internal predecessors, (10938), 0 states have call successors, (0), 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 07:28:24,282 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:28:24,283 INFO L232 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:28:24,288 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 07:28:24,488 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 07:28:24,489 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-30 07:28:24,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:28:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash 623553536, now seen corresponding path program 4 times [2023-11-30 07:28:24,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:28:24,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675152405] [2023-11-30 07:28:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:28:24,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:28:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:28:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 0 proven. 2629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:28:25,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:28:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675152405] [2023-11-30 07:28:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675152405] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:28:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629798697] [2023-11-30 07:28:25,867 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-30 07:28:25,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:28:25,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:28:25,868 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 07:28:25,873 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 07:28:26,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-30 07:28:26,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 07:28:26,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-30 07:28:26,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:28:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 0 proven. 2629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:28:26,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 07:28:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 0 proven. 2629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:28:27,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629798697] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 07:28:27,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 07:28:27,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2023-11-30 07:28:27,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216286937] [2023-11-30 07:28:27,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 07:28:27,770 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-30 07:28:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:28:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-30 07:28:27,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2023-11-30 07:28:27,781 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 268 [2023-11-30 07:28:27,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 19570 transitions, 619666 flow. Second operand has 96 states, 96 states have (on average 223.48958333333334) internal successors, (21455), 96 states have internal predecessors, (21455), 0 states have call successors, (0), 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 07:28:27,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:28:27,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 268 [2023-11-30 07:28:27,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 07:35:01,502 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 07:35:01,508 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 07:35:02,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-30 07:35:02,527 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 07:35:02,956 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-30 07:35:02,957 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 07:35:02,957 WARN L624 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-11-30 07:35:02,958 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-30 07:35:02,959 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-30 07:35:02,960 INFO L457 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:35:02,966 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:35:02,967 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:35:02,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:35:02 BasicIcfg [2023-11-30 07:35:02,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:35:02,970 INFO L158 Benchmark]: Toolchain (without parser) took 813124.67ms. Allocated memory was 339.7MB in the beginning and 9.0GB in the end (delta: 8.7GB). Free memory was 285.1MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2023-11-30 07:35:02,970 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 291.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:35:02,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 748.62ms. Allocated memory was 339.7MB in the beginning and 589.3MB in the end (delta: 249.6MB). Free memory was 285.1MB in the beginning and 526.2MB in the end (delta: -241.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.0GB. [2023-11-30 07:35:02,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.81ms. Allocated memory is still 589.3MB. Free memory was 526.2MB in the beginning and 522.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 07:35:02,970 INFO L158 Benchmark]: Boogie Preprocessor took 27.80ms. Allocated memory is still 589.3MB. Free memory was 522.5MB in the beginning and 519.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 07:35:02,971 INFO L158 Benchmark]: RCFGBuilder took 471.91ms. Allocated memory is still 589.3MB. Free memory was 519.2MB in the beginning and 489.0MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-11-30 07:35:02,971 INFO L158 Benchmark]: TraceAbstraction took 811820.91ms. Allocated memory was 589.3MB in the beginning and 9.0GB in the end (delta: 8.4GB). Free memory was 489.0MB in the beginning and 2.3GB in the end (delta: -1.8GB). Peak memory consumption was 7.3GB. Max. memory is 16.0GB. [2023-11-30 07:35:02,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 291.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 748.62ms. Allocated memory was 339.7MB in the beginning and 589.3MB in the end (delta: 249.6MB). Free memory was 285.1MB in the beginning and 526.2MB in the end (delta: -241.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.81ms. Allocated memory is still 589.3MB. Free memory was 526.2MB in the beginning and 522.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.80ms. Allocated memory is still 589.3MB. Free memory was 522.5MB in the beginning and 519.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 471.91ms. Allocated memory is still 589.3MB. Free memory was 519.2MB in the beginning and 489.0MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 811820.91ms. Allocated memory was 589.3MB in the beginning and 9.0GB in the end (delta: 8.4GB). Free memory was 489.0MB in the beginning and 2.3GB in the end (delta: -1.8GB). Peak memory consumption was 7.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1808]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1830]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1825]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1830]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1825]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1808]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1807]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1807]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1847]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1844]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 347 locations, 20 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: 811.7s, OverallIterations: 16, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 799.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7006 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7006 mSDsluCounter, 271 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2852 IncrementalHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 59 mSDtfsCounter, 2852 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2898 GetRequests, 2411 SyntacticMatches, 0 SemanticMatches, 487 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9195 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619666occurred in iteration=15, InterpolantAutomatonStates: 271, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 3209 NumberOfCodeBlocks, 3209 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 4322 ConstructedInterpolants, 0 QuantifiedInterpolants, 9684 SizeOfPredicates, 118 NumberOfNonLiveVariables, 3217 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 33 InterpolantComputations, 9 PerfectInterpolantSequences, 32/12685 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