/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_46-escape_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:21:50,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:21:50,129 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 07:21:50,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:21:50,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:21:50,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:21:50,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:21:50,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:21:50,155 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:21:50,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:21:50,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:21:50,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:21:50,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:21:50,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:21:50,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:21:50,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:21:50,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:21:50,161 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:21:50,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:21:50,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:50,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:21:50,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:21:50,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:21:50,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:21:50,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:21:50,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:21:50,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:21:50,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:21:50,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:21:50,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:21:50,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:21:50,373 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:21:50,373 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:21:50,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-11-30 07:21:51,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:21:51,459 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:21:51,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-11-30 07:21:51,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bf56d67c/81d066f6463e47b1be2479a29c3805df/FLAG4c5eb4664 [2023-11-30 07:21:51,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bf56d67c/81d066f6463e47b1be2479a29c3805df [2023-11-30 07:21:51,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:21:51,487 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:21:51,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:51,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:21:51,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:21:51,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:51,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73186205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51, skipping insertion in model container [2023-11-30 07:21:51,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:51,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:21:51,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:51,875 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:21:51,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:21:51,970 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:21:51,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51 WrapperNode [2023-11-30 07:21:51,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:21:51,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:51,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:21:51,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:21:51,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,013 INFO L138 Inliner]: procedures = 264, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-30 07:21:52,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:21:52,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:21:52,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:21:52,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:21:52,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:21:52,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:21:52,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:21:52,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:21:52,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (1/1) ... [2023-11-30 07:21:52,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:21:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:21:52,069 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 07:21:52,090 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 07:21:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:21:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:21:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:21:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:21:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:21:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:21:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:21:52,097 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 07:21:52,222 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:21:52,224 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:21:52,403 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:21:52,429 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:21:52,429 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:21:52,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:52 BoogieIcfgContainer [2023-11-30 07:21:52,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:21:52,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:21:52,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:21:52,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:21:52,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:21:51" (1/3) ... [2023-11-30 07:21:52,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d666e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:52, skipping insertion in model container [2023-11-30 07:21:52,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:21:51" (2/3) ... [2023-11-30 07:21:52,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d666e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:21:52, skipping insertion in model container [2023-11-30 07:21:52,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:21:52" (3/3) ... [2023-11-30 07:21:52,437 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2023-11-30 07:21:52,449 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:21:52,449 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 07:21:52,449 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:21:52,501 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:21:52,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 177 flow [2023-11-30 07:21:52,587 INFO L124 PetriNetUnfolderBase]: 1/84 cut-off events. [2023-11-30 07:21:52,587 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:21:52,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 1/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2023-11-30 07:21:52,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 177 flow [2023-11-30 07:21:52,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 137 flow [2023-11-30 07:21:52,597 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:21:52,602 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;@6760e059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:21:52,602 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 07:21:52,609 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:21:52,609 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2023-11-30 07:21:52,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:21:52,610 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:52,610 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:52,610 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:52,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:52,614 INFO L85 PathProgramCache]: Analyzing trace with hash 110117601, now seen corresponding path program 1 times [2023-11-30 07:21:52,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:52,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345214656] [2023-11-30 07:21:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:53,146 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 07:21:53,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:53,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345214656] [2023-11-30 07:21:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345214656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:53,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:53,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040070771] [2023-11-30 07:21:53,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:53,156 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:53,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:53,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:53,184 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 85 [2023-11-30 07:21:53,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 137 flow. Second operand has 9 states, 9 states have (on average 44.333333333333336) internal successors, (399), 9 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:53,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 85 [2023-11-30 07:21:53,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:53,469 INFO L124 PetriNetUnfolderBase]: 54/249 cut-off events. [2023-11-30 07:21:53,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:21:53,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 249 events. 54/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1092 event pairs, 11 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 352. Up to 35 conditions per place. [2023-11-30 07:21:53,472 INFO L140 encePairwiseOnDemand]: 72/85 looper letters, 38 selfloop transitions, 14 changer transitions 13/99 dead transitions. [2023-11-30 07:21:53,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 99 transitions, 331 flow [2023-11-30 07:21:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 07:21:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 07:21:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 613 transitions. [2023-11-30 07:21:53,483 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5547511312217195 [2023-11-30 07:21:53,484 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 613 transitions. [2023-11-30 07:21:53,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 613 transitions. [2023-11-30 07:21:53,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:53,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 613 transitions. [2023-11-30 07:21:53,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.15384615384615) internal successors, (613), 13 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,496 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,498 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 12 predicate places. [2023-11-30 07:21:53,498 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 331 flow [2023-11-30 07:21:53,498 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 44.333333333333336) internal successors, (399), 9 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,498 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:53,498 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:21:53,499 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:21:53,499 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:53,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1494812927, now seen corresponding path program 1 times [2023-11-30 07:21:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:53,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124085539] [2023-11-30 07:21:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:53,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:53,818 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 07:21:53,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:53,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124085539] [2023-11-30 07:21:53,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124085539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:53,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:53,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-30 07:21:53,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553998266] [2023-11-30 07:21:53,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:53,820 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 07:21:53,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 07:21:53,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-30 07:21:53,822 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 85 [2023-11-30 07:21:53,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 331 flow. Second operand has 12 states, 12 states have (on average 41.916666666666664) internal successors, (503), 12 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:53,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:53,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 85 [2023-11-30 07:21:53,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:54,217 INFO L124 PetriNetUnfolderBase]: 120/416 cut-off events. [2023-11-30 07:21:54,217 INFO L125 PetriNetUnfolderBase]: For 76/92 co-relation queries the response was YES. [2023-11-30 07:21:54,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 416 events. 120/416 cut-off events. For 76/92 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2076 event pairs, 7 based on Foata normal form. 10/397 useless extension candidates. Maximal degree in co-relation 860. Up to 78 conditions per place. [2023-11-30 07:21:54,220 INFO L140 encePairwiseOnDemand]: 69/85 looper letters, 61 selfloop transitions, 21 changer transitions 36/156 dead transitions. [2023-11-30 07:21:54,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 156 transitions, 755 flow [2023-11-30 07:21:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-30 07:21:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-30 07:21:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 845 transitions. [2023-11-30 07:21:54,223 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5232198142414861 [2023-11-30 07:21:54,223 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 845 transitions. [2023-11-30 07:21:54,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 845 transitions. [2023-11-30 07:21:54,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:54,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 845 transitions. [2023-11-30 07:21:54,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 44.473684210526315) internal successors, (845), 19 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,228 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 85.0) internal successors, (1700), 20 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,228 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 30 predicate places. [2023-11-30 07:21:54,229 INFO L500 AbstractCegarLoop]: Abstraction has has 101 places, 156 transitions, 755 flow [2023-11-30 07:21:54,229 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 41.916666666666664) internal successors, (503), 12 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,229 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:54,229 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] [2023-11-30 07:21:54,229 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:21:54,229 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:54,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:54,230 INFO L85 PathProgramCache]: Analyzing trace with hash -905439291, now seen corresponding path program 1 times [2023-11-30 07:21:54,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:54,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486845631] [2023-11-30 07:21:54,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:54,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:54,389 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 07:21:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486845631] [2023-11-30 07:21:54,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486845631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:54,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:54,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-30 07:21:54,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446081921] [2023-11-30 07:21:54,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:54,392 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 07:21:54,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 07:21:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-30 07:21:54,394 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 85 [2023-11-30 07:21:54,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 156 transitions, 755 flow. Second operand has 12 states, 12 states have (on average 40.916666666666664) internal successors, (491), 12 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:54,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 85 [2023-11-30 07:21:54,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:54,680 INFO L124 PetriNetUnfolderBase]: 117/409 cut-off events. [2023-11-30 07:21:54,680 INFO L125 PetriNetUnfolderBase]: For 201/257 co-relation queries the response was YES. [2023-11-30 07:21:54,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 409 events. 117/409 cut-off events. For 201/257 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2020 event pairs, 5 based on Foata normal form. 24/411 useless extension candidates. Maximal degree in co-relation 1086. Up to 128 conditions per place. [2023-11-30 07:21:54,682 INFO L140 encePairwiseOnDemand]: 69/85 looper letters, 52 selfloop transitions, 21 changer transitions 49/161 dead transitions. [2023-11-30 07:21:54,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 161 transitions, 1021 flow [2023-11-30 07:21:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 07:21:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 07:21:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 662 transitions. [2023-11-30 07:21:54,684 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5192156862745098 [2023-11-30 07:21:54,684 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 662 transitions. [2023-11-30 07:21:54,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 662 transitions. [2023-11-30 07:21:54,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:54,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 662 transitions. [2023-11-30 07:21:54,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 44.13333333333333) internal successors, (662), 15 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 85.0) internal successors, (1360), 16 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,688 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 85.0) internal successors, (1360), 16 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,688 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 44 predicate places. [2023-11-30 07:21:54,688 INFO L500 AbstractCegarLoop]: Abstraction has has 115 places, 161 transitions, 1021 flow [2023-11-30 07:21:54,688 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.916666666666664) internal successors, (491), 12 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,688 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:54,689 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] [2023-11-30 07:21:54,689 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:21:54,689 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:54,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -881321515, now seen corresponding path program 1 times [2023-11-30 07:21:54,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:54,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021872517] [2023-11-30 07:21:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:54,793 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 07:21:54,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:54,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021872517] [2023-11-30 07:21:54,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021872517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:54,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:54,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45262985] [2023-11-30 07:21:54,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:54,796 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:54,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:54,799 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 85 [2023-11-30 07:21:54,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 161 transitions, 1021 flow. Second operand has 9 states, 9 states have (on average 43.333333333333336) internal successors, (390), 9 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:54,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 85 [2023-11-30 07:21:54,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:54,947 INFO L124 PetriNetUnfolderBase]: 114/393 cut-off events. [2023-11-30 07:21:54,947 INFO L125 PetriNetUnfolderBase]: For 350/388 co-relation queries the response was YES. [2023-11-30 07:21:54,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 393 events. 114/393 cut-off events. For 350/388 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1934 event pairs, 3 based on Foata normal form. 16/394 useless extension candidates. Maximal degree in co-relation 1269. Up to 127 conditions per place. [2023-11-30 07:21:54,949 INFO L140 encePairwiseOnDemand]: 72/85 looper letters, 46 selfloop transitions, 16 changer transitions 61/162 dead transitions. [2023-11-30 07:21:54,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 162 transitions, 1259 flow [2023-11-30 07:21:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 07:21:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 07:21:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 556 transitions. [2023-11-30 07:21:54,950 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5450980392156862 [2023-11-30 07:21:54,950 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 556 transitions. [2023-11-30 07:21:54,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 556 transitions. [2023-11-30 07:21:54,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:54,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 556 transitions. [2023-11-30 07:21:54,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.333333333333336) internal successors, (556), 12 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,953 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,954 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 55 predicate places. [2023-11-30 07:21:54,954 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 162 transitions, 1259 flow [2023-11-30 07:21:54,954 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.333333333333336) internal successors, (390), 9 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:54,954 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:54,954 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] [2023-11-30 07:21:54,955 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:21:54,955 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:54,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:54,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1806367697, now seen corresponding path program 1 times [2023-11-30 07:21:54,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:54,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910207220] [2023-11-30 07:21:54,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:54,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:55,007 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 07:21:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910207220] [2023-11-30 07:21:55,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910207220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:55,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:55,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:21:55,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777942270] [2023-11-30 07:21:55,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:55,008 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:21:55,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:55,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:21:55,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:21:55,009 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2023-11-30 07:21:55,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 162 transitions, 1259 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:55,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2023-11-30 07:21:55,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:55,066 INFO L124 PetriNetUnfolderBase]: 21/151 cut-off events. [2023-11-30 07:21:55,066 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2023-11-30 07:21:55,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 151 events. 21/151 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 3 based on Foata normal form. 16/161 useless extension candidates. Maximal degree in co-relation 409. Up to 54 conditions per place. [2023-11-30 07:21:55,067 INFO L140 encePairwiseOnDemand]: 81/85 looper letters, 7 selfloop transitions, 8 changer transitions 11/96 dead transitions. [2023-11-30 07:21:55,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 96 transitions, 679 flow [2023-11-30 07:21:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:21:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:21:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2023-11-30 07:21:55,069 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2023-11-30 07:21:55,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2023-11-30 07:21:55,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2023-11-30 07:21:55,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:55,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2023-11-30 07:21:55,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,072 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 50 predicate places. [2023-11-30 07:21:55,072 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 96 transitions, 679 flow [2023-11-30 07:21:55,073 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,073 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:55,073 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] [2023-11-30 07:21:55,073 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:21:55,073 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:55,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:55,074 INFO L85 PathProgramCache]: Analyzing trace with hash 223400090, now seen corresponding path program 1 times [2023-11-30 07:21:55,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:55,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416269509] [2023-11-30 07:21:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:55,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:55,233 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 07:21:55,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:55,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416269509] [2023-11-30 07:21:55,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416269509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:55,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:55,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:55,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683008783] [2023-11-30 07:21:55,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:55,241 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:55,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:55,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:55,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:55,242 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:55,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 96 transitions, 679 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:55,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:55,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:55,426 INFO L124 PetriNetUnfolderBase]: 31/160 cut-off events. [2023-11-30 07:21:55,426 INFO L125 PetriNetUnfolderBase]: For 310/318 co-relation queries the response was YES. [2023-11-30 07:21:55,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 160 events. 31/160 cut-off events. For 310/318 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 3 based on Foata normal form. 8/163 useless extension candidates. Maximal degree in co-relation 538. Up to 58 conditions per place. [2023-11-30 07:21:55,427 INFO L140 encePairwiseOnDemand]: 74/85 looper letters, 55 selfloop transitions, 11 changer transitions 13/111 dead transitions. [2023-11-30 07:21:55,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 111 transitions, 955 flow [2023-11-30 07:21:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:21:55,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:21:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 551 transitions. [2023-11-30 07:21:55,429 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5893048128342246 [2023-11-30 07:21:55,429 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 551 transitions. [2023-11-30 07:21:55,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 551 transitions. [2023-11-30 07:21:55,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:55,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 551 transitions. [2023-11-30 07:21:55,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 50.09090909090909) internal successors, (551), 11 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,431 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,432 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 59 predicate places. [2023-11-30 07:21:55,432 INFO L500 AbstractCegarLoop]: Abstraction has has 130 places, 111 transitions, 955 flow [2023-11-30 07:21:55,432 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,432 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:55,432 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] [2023-11-30 07:21:55,432 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:21:55,432 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:55,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash -559625654, now seen corresponding path program 1 times [2023-11-30 07:21:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:55,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669692000] [2023-11-30 07:21:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:55,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:55,545 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 07:21:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669692000] [2023-11-30 07:21:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669692000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:55,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:55,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977129297] [2023-11-30 07:21:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:55,546 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:55,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:55,547 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:55,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 111 transitions, 955 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:55,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:55,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:55,759 INFO L124 PetriNetUnfolderBase]: 40/206 cut-off events. [2023-11-30 07:21:55,759 INFO L125 PetriNetUnfolderBase]: For 475/481 co-relation queries the response was YES. [2023-11-30 07:21:55,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 206 events. 40/206 cut-off events. For 475/481 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 617 event pairs, 4 based on Foata normal form. 6/205 useless extension candidates. Maximal degree in co-relation 873. Up to 91 conditions per place. [2023-11-30 07:21:55,760 INFO L140 encePairwiseOnDemand]: 73/85 looper letters, 66 selfloop transitions, 12 changer transitions 21/133 dead transitions. [2023-11-30 07:21:55,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 1387 flow [2023-11-30 07:21:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 07:21:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 07:21:55,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 600 transitions. [2023-11-30 07:21:55,762 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2023-11-30 07:21:55,762 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 600 transitions. [2023-11-30 07:21:55,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 600 transitions. [2023-11-30 07:21:55,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:55,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 600 transitions. [2023-11-30 07:21:55,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 50.0) internal successors, (600), 12 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,765 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,766 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 70 predicate places. [2023-11-30 07:21:55,766 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 133 transitions, 1387 flow [2023-11-30 07:21:55,766 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,766 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:55,766 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] [2023-11-30 07:21:55,766 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:21:55,766 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:55,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1849905970, now seen corresponding path program 2 times [2023-11-30 07:21:55,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:55,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56712458] [2023-11-30 07:21:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:55,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:55,887 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 07:21:55,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:55,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56712458] [2023-11-30 07:21:55,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56712458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:55,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:55,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:55,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417383518] [2023-11-30 07:21:55,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:55,888 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:55,889 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:55,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 1387 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:55,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:55,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:55,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:56,110 INFO L124 PetriNetUnfolderBase]: 53/260 cut-off events. [2023-11-30 07:21:56,111 INFO L125 PetriNetUnfolderBase]: For 725/729 co-relation queries the response was YES. [2023-11-30 07:21:56,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 260 events. 53/260 cut-off events. For 725/729 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 979 event pairs, 5 based on Foata normal form. 2/253 useless extension candidates. Maximal degree in co-relation 1334. Up to 127 conditions per place. [2023-11-30 07:21:56,112 INFO L140 encePairwiseOnDemand]: 73/85 looper letters, 82 selfloop transitions, 17 changer transitions 29/162 dead transitions. [2023-11-30 07:21:56,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 162 transitions, 1999 flow [2023-11-30 07:21:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 07:21:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 07:21:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 596 transitions. [2023-11-30 07:21:56,114 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5843137254901961 [2023-11-30 07:21:56,114 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 596 transitions. [2023-11-30 07:21:56,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 596 transitions. [2023-11-30 07:21:56,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:56,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 596 transitions. [2023-11-30 07:21:56,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 49.666666666666664) internal successors, (596), 12 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,117 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,117 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 81 predicate places. [2023-11-30 07:21:56,118 INFO L500 AbstractCegarLoop]: Abstraction has has 152 places, 162 transitions, 1999 flow [2023-11-30 07:21:56,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,118 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:56,118 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] [2023-11-30 07:21:56,118 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 07:21:56,118 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:56,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash -43629046, now seen corresponding path program 3 times [2023-11-30 07:21:56,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:56,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434476813] [2023-11-30 07:21:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:56,311 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 07:21:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:56,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434476813] [2023-11-30 07:21:56,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434476813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:56,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:56,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398501439] [2023-11-30 07:21:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:56,312 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:56,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:56,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:56,314 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:56,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 162 transitions, 1999 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:56,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:56,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:56,507 INFO L124 PetriNetUnfolderBase]: 62/302 cut-off events. [2023-11-30 07:21:56,507 INFO L125 PetriNetUnfolderBase]: For 1030/1034 co-relation queries the response was YES. [2023-11-30 07:21:56,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 302 events. 62/302 cut-off events. For 1030/1034 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1310 event pairs, 6 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 1799. Up to 159 conditions per place. [2023-11-30 07:21:56,509 INFO L140 encePairwiseOnDemand]: 73/85 looper letters, 92 selfloop transitions, 23 changer transitions 37/186 dead transitions. [2023-11-30 07:21:56,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 186 transitions, 2645 flow [2023-11-30 07:21:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 07:21:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 07:21:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 589 transitions. [2023-11-30 07:21:56,512 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5774509803921568 [2023-11-30 07:21:56,512 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 589 transitions. [2023-11-30 07:21:56,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 589 transitions. [2023-11-30 07:21:56,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:56,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 589 transitions. [2023-11-30 07:21:56,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,518 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,519 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 92 predicate places. [2023-11-30 07:21:56,519 INFO L500 AbstractCegarLoop]: Abstraction has has 163 places, 186 transitions, 2645 flow [2023-11-30 07:21:56,519 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,519 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:56,519 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] [2023-11-30 07:21:56,519 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:21:56,521 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:56,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 711672232, now seen corresponding path program 4 times [2023-11-30 07:21:56,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:56,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272969080] [2023-11-30 07:21:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:56,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:56,650 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 07:21:56,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:56,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272969080] [2023-11-30 07:21:56,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272969080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:56,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:56,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907832724] [2023-11-30 07:21:56,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:56,653 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:56,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:56,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:56,654 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:56,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 186 transitions, 2645 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:56,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:56,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:56,910 INFO L124 PetriNetUnfolderBase]: 73/350 cut-off events. [2023-11-30 07:21:56,910 INFO L125 PetriNetUnfolderBase]: For 1540/1576 co-relation queries the response was YES. [2023-11-30 07:21:56,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 350 events. 73/350 cut-off events. For 1540/1576 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1684 event pairs, 7 based on Foata normal form. 5/342 useless extension candidates. Maximal degree in co-relation 2366. Up to 196 conditions per place. [2023-11-30 07:21:56,913 INFO L140 encePairwiseOnDemand]: 72/85 looper letters, 106 selfloop transitions, 23 changer transitions 45/208 dead transitions. [2023-11-30 07:21:56,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 208 transitions, 3365 flow [2023-11-30 07:21:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 07:21:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 07:21:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 693 transitions. [2023-11-30 07:21:56,914 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5823529411764706 [2023-11-30 07:21:56,914 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 693 transitions. [2023-11-30 07:21:56,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 693 transitions. [2023-11-30 07:21:56,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:56,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 693 transitions. [2023-11-30 07:21:56,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 49.5) internal successors, (693), 14 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,918 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,919 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 105 predicate places. [2023-11-30 07:21:56,919 INFO L500 AbstractCegarLoop]: Abstraction has has 176 places, 208 transitions, 3365 flow [2023-11-30 07:21:56,919 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:56,919 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:56,920 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] [2023-11-30 07:21:56,920 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 07:21:56,920 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:56,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1171462644, now seen corresponding path program 5 times [2023-11-30 07:21:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:56,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287944087] [2023-11-30 07:21:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:57,032 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 07:21:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287944087] [2023-11-30 07:21:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287944087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022318583] [2023-11-30 07:21:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:57,033 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:57,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:57,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:57,034 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:57,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 208 transitions, 3365 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:57,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:57,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:57,272 INFO L124 PetriNetUnfolderBase]: 86/403 cut-off events. [2023-11-30 07:21:57,272 INFO L125 PetriNetUnfolderBase]: For 2066/2084 co-relation queries the response was YES. [2023-11-30 07:21:57,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3238 conditions, 403 events. 86/403 cut-off events. For 2066/2084 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2133 event pairs, 8 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 3050. Up to 235 conditions per place. [2023-11-30 07:21:57,275 INFO L140 encePairwiseOnDemand]: 72/85 looper letters, 118 selfloop transitions, 28 changer transitions 53/233 dead transitions. [2023-11-30 07:21:57,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 233 transitions, 4227 flow [2023-11-30 07:21:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 07:21:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 07:21:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 687 transitions. [2023-11-30 07:21:57,277 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5773109243697478 [2023-11-30 07:21:57,277 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 687 transitions. [2023-11-30 07:21:57,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 687 transitions. [2023-11-30 07:21:57,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:57,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 687 transitions. [2023-11-30 07:21:57,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 49.07142857142857) internal successors, (687), 14 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,281 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,281 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 118 predicate places. [2023-11-30 07:21:57,282 INFO L500 AbstractCegarLoop]: Abstraction has has 189 places, 233 transitions, 4227 flow [2023-11-30 07:21:57,282 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,282 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:57,282 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] [2023-11-30 07:21:57,282 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:21:57,282 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:57,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:57,282 INFO L85 PathProgramCache]: Analyzing trace with hash 195102474, now seen corresponding path program 6 times [2023-11-30 07:21:57,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:57,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183025338] [2023-11-30 07:21:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:57,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:57,428 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 07:21:57,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:57,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183025338] [2023-11-30 07:21:57,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183025338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:57,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:57,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 07:21:57,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293597604] [2023-11-30 07:21:57,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:57,429 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 07:21:57,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:57,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 07:21:57,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-30 07:21:57,430 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2023-11-30 07:21:57,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 233 transitions, 4227 flow. Second operand has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:57,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2023-11-30 07:21:57,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:57,690 INFO L124 PetriNetUnfolderBase]: 85/400 cut-off events. [2023-11-30 07:21:57,691 INFO L125 PetriNetUnfolderBase]: For 2544/2596 co-relation queries the response was YES. [2023-11-30 07:21:57,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3508 conditions, 400 events. 85/400 cut-off events. For 2544/2596 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2082 event pairs, 6 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 3308. Up to 235 conditions per place. [2023-11-30 07:21:57,693 INFO L140 encePairwiseOnDemand]: 72/85 looper letters, 114 selfloop transitions, 32 changer transitions 54/234 dead transitions. [2023-11-30 07:21:57,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 234 transitions, 4651 flow [2023-11-30 07:21:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 07:21:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 07:21:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 685 transitions. [2023-11-30 07:21:57,695 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5756302521008403 [2023-11-30 07:21:57,695 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 685 transitions. [2023-11-30 07:21:57,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 685 transitions. [2023-11-30 07:21:57,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:57,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 685 transitions. [2023-11-30 07:21:57,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 48.92857142857143) internal successors, (685), 14 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,698 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,699 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 130 predicate places. [2023-11-30 07:21:57,699 INFO L500 AbstractCegarLoop]: Abstraction has has 201 places, 234 transitions, 4651 flow [2023-11-30 07:21:57,699 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,699 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:57,699 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] [2023-11-30 07:21:57,699 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:21:57,700 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:57,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:57,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1664531652, now seen corresponding path program 1 times [2023-11-30 07:21:57,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:57,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147284604] [2023-11-30 07:21:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:57,948 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 07:21:57,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:57,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147284604] [2023-11-30 07:21:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147284604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:57,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:21:57,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444898183] [2023-11-30 07:21:57,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:57,949 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:21:57,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:57,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:21:57,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:21:57,951 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:21:57,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 234 transitions, 4651 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:57,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:57,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:21:57,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:58,443 INFO L124 PetriNetUnfolderBase]: 85/398 cut-off events. [2023-11-30 07:21:58,443 INFO L125 PetriNetUnfolderBase]: For 2953/3001 co-relation queries the response was YES. [2023-11-30 07:21:58,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3811 conditions, 398 events. 85/398 cut-off events. For 2953/3001 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2065 event pairs, 5 based on Foata normal form. 4/390 useless extension candidates. Maximal degree in co-relation 3594. Up to 235 conditions per place. [2023-11-30 07:21:58,446 INFO L140 encePairwiseOnDemand]: 66/85 looper letters, 108 selfloop transitions, 40 changer transitions 70/241 dead transitions. [2023-11-30 07:21:58,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 241 transitions, 5221 flow [2023-11-30 07:21:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-30 07:21:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-30 07:21:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 876 transitions. [2023-11-30 07:21:58,448 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.41223529411764703 [2023-11-30 07:21:58,448 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 876 transitions. [2023-11-30 07:21:58,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 876 transitions. [2023-11-30 07:21:58,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:58,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 876 transitions. [2023-11-30 07:21:58,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 35.04) internal successors, (876), 25 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:58,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:58,452 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:58,453 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 153 predicate places. [2023-11-30 07:21:58,453 INFO L500 AbstractCegarLoop]: Abstraction has has 224 places, 241 transitions, 5221 flow [2023-11-30 07:21:58,453 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:58,453 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:58,453 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] [2023-11-30 07:21:58,453 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 07:21:58,453 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:58,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1370000558, now seen corresponding path program 1 times [2023-11-30 07:21:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:58,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922641859] [2023-11-30 07:21:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:58,652 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 07:21:58,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922641859] [2023-11-30 07:21:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922641859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:21:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412262246] [2023-11-30 07:21:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:58,653 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:21:58,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:21:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:21:58,654 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:21:58,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 241 transitions, 5221 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:58,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:58,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:21:58,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:59,060 INFO L124 PetriNetUnfolderBase]: 92/425 cut-off events. [2023-11-30 07:21:59,060 INFO L125 PetriNetUnfolderBase]: For 3397/3451 co-relation queries the response was YES. [2023-11-30 07:21:59,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 425 events. 92/425 cut-off events. For 3397/3451 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2294 event pairs, 7 based on Foata normal form. 4/417 useless extension candidates. Maximal degree in co-relation 4251. Up to 258 conditions per place. [2023-11-30 07:21:59,063 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 125 selfloop transitions, 20 changer transitions 98/266 dead transitions. [2023-11-30 07:21:59,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 266 transitions, 6305 flow [2023-11-30 07:21:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 07:21:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 07:21:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 756 transitions. [2023-11-30 07:21:59,065 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.4235294117647059 [2023-11-30 07:21:59,065 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 756 transitions. [2023-11-30 07:21:59,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 756 transitions. [2023-11-30 07:21:59,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:59,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 756 transitions. [2023-11-30 07:21:59,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 36.0) internal successors, (756), 21 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 85.0) internal successors, (1870), 22 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,068 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 85.0) internal successors, (1870), 22 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,069 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 173 predicate places. [2023-11-30 07:21:59,069 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 266 transitions, 6305 flow [2023-11-30 07:21:59,069 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,069 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:59,069 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] [2023-11-30 07:21:59,069 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 07:21:59,069 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:59,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:59,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1834460278, now seen corresponding path program 2 times [2023-11-30 07:21:59,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:59,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102229381] [2023-11-30 07:21:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:59,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:21:59,282 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 07:21:59,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:21:59,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102229381] [2023-11-30 07:21:59,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102229381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:21:59,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:21:59,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:21:59,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863226988] [2023-11-30 07:21:59,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:21:59,283 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:21:59,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:21:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:21:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:21:59,284 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:21:59,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 266 transitions, 6305 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:21:59,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:21:59,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:21:59,845 INFO L124 PetriNetUnfolderBase]: 112/506 cut-off events. [2023-11-30 07:21:59,845 INFO L125 PetriNetUnfolderBase]: For 4867/4959 co-relation queries the response was YES. [2023-11-30 07:21:59,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5820 conditions, 506 events. 112/506 cut-off events. For 4867/4959 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2950 event pairs, 6 based on Foata normal form. 4/498 useless extension candidates. Maximal degree in co-relation 5569. Up to 308 conditions per place. [2023-11-30 07:21:59,849 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 126 selfloop transitions, 29 changer transitions 143/321 dead transitions. [2023-11-30 07:21:59,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 321 transitions, 8267 flow [2023-11-30 07:21:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 07:21:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 07:21:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1061 transitions. [2023-11-30 07:21:59,851 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.416078431372549 [2023-11-30 07:21:59,851 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1061 transitions. [2023-11-30 07:21:59,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1061 transitions. [2023-11-30 07:21:59,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:21:59,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1061 transitions. [2023-11-30 07:21:59,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 35.36666666666667) internal successors, (1061), 30 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 85.0) internal successors, (2635), 31 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,855 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 85.0) internal successors, (2635), 31 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,856 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 202 predicate places. [2023-11-30 07:21:59,856 INFO L500 AbstractCegarLoop]: Abstraction has has 273 places, 321 transitions, 8267 flow [2023-11-30 07:21:59,856 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:21:59,856 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:21:59,856 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] [2023-11-30 07:21:59,856 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 07:21:59,856 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:21:59,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:21:59,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1397708438, now seen corresponding path program 3 times [2023-11-30 07:21:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:21:59,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257921735] [2023-11-30 07:21:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:21:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:21:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:00,022 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 07:22:00,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:00,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257921735] [2023-11-30 07:22:00,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257921735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:00,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:00,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202141346] [2023-11-30 07:22:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:00,023 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:00,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:00,024 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:22:00,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 321 transitions, 8267 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:00,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:22:00,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:00,549 INFO L124 PetriNetUnfolderBase]: 121/539 cut-off events. [2023-11-30 07:22:00,550 INFO L125 PetriNetUnfolderBase]: For 5915/5961 co-relation queries the response was YES. [2023-11-30 07:22:00,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6653 conditions, 539 events. 121/539 cut-off events. For 5915/5961 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3237 event pairs, 9 based on Foata normal form. 4/531 useless extension candidates. Maximal degree in co-relation 6385. Up to 335 conditions per place. [2023-11-30 07:22:00,554 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 123 selfloop transitions, 19 changer transitions 173/338 dead transitions. [2023-11-30 07:22:00,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 338 transitions, 9385 flow [2023-11-30 07:22:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-30 07:22:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-30 07:22:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 929 transitions. [2023-11-30 07:22:00,556 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.42036199095022625 [2023-11-30 07:22:00,556 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 929 transitions. [2023-11-30 07:22:00,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 929 transitions. [2023-11-30 07:22:00,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:00,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 929 transitions. [2023-11-30 07:22:00,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 35.73076923076923) internal successors, (929), 26 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,561 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,561 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 227 predicate places. [2023-11-30 07:22:00,561 INFO L500 AbstractCegarLoop]: Abstraction has has 298 places, 338 transitions, 9385 flow [2023-11-30 07:22:00,561 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,561 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:00,562 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] [2023-11-30 07:22:00,562 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 07:22:00,562 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:00,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1424241592, now seen corresponding path program 4 times [2023-11-30 07:22:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026892893] [2023-11-30 07:22:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:00,803 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 07:22:00,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:00,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026892893] [2023-11-30 07:22:00,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026892893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:00,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:00,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:00,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224277340] [2023-11-30 07:22:00,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:00,805 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:00,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:00,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:00,806 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:22:00,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 338 transitions, 9385 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:00,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:00,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:22:00,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:01,334 INFO L124 PetriNetUnfolderBase]: 128/570 cut-off events. [2023-11-30 07:22:01,335 INFO L125 PetriNetUnfolderBase]: For 6984/7012 co-relation queries the response was YES. [2023-11-30 07:22:01,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7529 conditions, 570 events. 128/570 cut-off events. For 6984/7012 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3519 event pairs, 10 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 7244. Up to 358 conditions per place. [2023-11-30 07:22:01,339 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 114 selfloop transitions, 26 changer transitions 195/358 dead transitions. [2023-11-30 07:22:01,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 358 transitions, 10647 flow [2023-11-30 07:22:01,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 07:22:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 07:22:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 824 transitions. [2023-11-30 07:22:01,341 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.4214833759590793 [2023-11-30 07:22:01,341 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 824 transitions. [2023-11-30 07:22:01,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 824 transitions. [2023-11-30 07:22:01,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:01,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 824 transitions. [2023-11-30 07:22:01,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 35.82608695652174) internal successors, (824), 23 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:01,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 85.0) internal successors, (2040), 24 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:01,344 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 85.0) internal successors, (2040), 24 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:01,344 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 249 predicate places. [2023-11-30 07:22:01,345 INFO L500 AbstractCegarLoop]: Abstraction has has 320 places, 358 transitions, 10647 flow [2023-11-30 07:22:01,345 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:01,345 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:01,345 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] [2023-11-30 07:22:01,345 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 07:22:01,345 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:01,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1352500198, now seen corresponding path program 5 times [2023-11-30 07:22:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:01,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505354964] [2023-11-30 07:22:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:01,532 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 07:22:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505354964] [2023-11-30 07:22:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505354964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:01,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:01,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778830941] [2023-11-30 07:22:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:01,533 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:01,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:01,534 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:22:01,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 358 transitions, 10647 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:01,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:01,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:22:01,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:02,133 INFO L124 PetriNetUnfolderBase]: 146/637 cut-off events. [2023-11-30 07:22:02,133 INFO L125 PetriNetUnfolderBase]: For 8859/8921 co-relation queries the response was YES. [2023-11-30 07:22:02,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9033 conditions, 637 events. 146/637 cut-off events. For 8859/8921 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4162 event pairs, 12 based on Foata normal form. 0/627 useless extension candidates. Maximal degree in co-relation 8731. Up to 404 conditions per place. [2023-11-30 07:22:02,138 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 93 selfloop transitions, 41 changer transitions 246/403 dead transitions. [2023-11-30 07:22:02,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 403 transitions, 12807 flow [2023-11-30 07:22:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-30 07:22:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-30 07:22:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 923 transitions. [2023-11-30 07:22:02,140 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.4176470588235294 [2023-11-30 07:22:02,140 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 923 transitions. [2023-11-30 07:22:02,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 923 transitions. [2023-11-30 07:22:02,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:02,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 923 transitions. [2023-11-30 07:22:02,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 35.5) internal successors, (923), 26 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:02,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:02,144 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:02,144 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 273 predicate places. [2023-11-30 07:22:02,144 INFO L500 AbstractCegarLoop]: Abstraction has has 344 places, 403 transitions, 12807 flow [2023-11-30 07:22:02,144 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:02,144 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:02,145 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] [2023-11-30 07:22:02,145 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 07:22:02,145 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:02,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1673217200, now seen corresponding path program 6 times [2023-11-30 07:22:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:02,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267571687] [2023-11-30 07:22:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:02,366 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 07:22:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267571687] [2023-11-30 07:22:02,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267571687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:02,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:02,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:02,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50148901] [2023-11-30 07:22:02,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:02,368 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:02,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:02,369 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:22:02,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 403 transitions, 12807 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:02,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:02,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:22:02,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:03,264 INFO L124 PetriNetUnfolderBase]: 142/624 cut-off events. [2023-11-30 07:22:03,264 INFO L125 PetriNetUnfolderBase]: For 9680/9772 co-relation queries the response was YES. [2023-11-30 07:22:03,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9351 conditions, 624 events. 142/624 cut-off events. For 9680/9772 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4019 event pairs, 12 based on Foata normal form. 8/630 useless extension candidates. Maximal degree in co-relation 9032. Up to 392 conditions per place. [2023-11-30 07:22:03,269 INFO L140 encePairwiseOnDemand]: 65/85 looper letters, 32 selfloop transitions, 17 changer transitions 325/397 dead transitions. [2023-11-30 07:22:03,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 397 transitions, 13317 flow [2023-11-30 07:22:03,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-30 07:22:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-11-30 07:22:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1328 transitions. [2023-11-30 07:22:03,271 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.41114551083591333 [2023-11-30 07:22:03,271 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1328 transitions. [2023-11-30 07:22:03,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1328 transitions. [2023-11-30 07:22:03,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:03,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1328 transitions. [2023-11-30 07:22:03,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 34.94736842105263) internal successors, (1328), 38 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:03,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 85.0) internal successors, (3315), 39 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:03,277 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 85.0) internal successors, (3315), 39 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:03,277 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 308 predicate places. [2023-11-30 07:22:03,277 INFO L500 AbstractCegarLoop]: Abstraction has has 379 places, 397 transitions, 13317 flow [2023-11-30 07:22:03,277 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:03,278 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:22:03,278 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] [2023-11-30 07:22:03,278 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-30 07:22:03,278 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:22:03,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:22:03,278 INFO L85 PathProgramCache]: Analyzing trace with hash -542201864, now seen corresponding path program 7 times [2023-11-30 07:22:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:22:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639392472] [2023-11-30 07:22:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:22:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:22:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:22:03,437 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 07:22:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:22:03,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639392472] [2023-11-30 07:22:03,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639392472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:22:03,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:22:03,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-30 07:22:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959780076] [2023-11-30 07:22:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:22:03,438 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 07:22:03,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:22:03,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 07:22:03,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-30 07:22:03,439 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 85 [2023-11-30 07:22:03,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 397 transitions, 13317 flow. Second operand has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:03,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:22:03,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 85 [2023-11-30 07:22:03,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:22:04,070 INFO L124 PetriNetUnfolderBase]: 141/621 cut-off events. [2023-11-30 07:22:04,071 INFO L125 PetriNetUnfolderBase]: For 10663/10713 co-relation queries the response was YES. [2023-11-30 07:22:04,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9814 conditions, 621 events. 141/621 cut-off events. For 10663/10713 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4008 event pairs, 12 based on Foata normal form. 6/627 useless extension candidates. Maximal degree in co-relation 9478. Up to 389 conditions per place. [2023-11-30 07:22:04,075 INFO L140 encePairwiseOnDemand]: 66/85 looper letters, 0 selfloop transitions, 0 changer transitions 395/395 dead transitions. [2023-11-30 07:22:04,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 395 transitions, 13983 flow [2023-11-30 07:22:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-30 07:22:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-11-30 07:22:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1080 transitions. [2023-11-30 07:22:04,077 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.4098671726755218 [2023-11-30 07:22:04,077 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1080 transitions. [2023-11-30 07:22:04,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1080 transitions. [2023-11-30 07:22:04,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:22:04,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1080 transitions. [2023-11-30 07:22:04,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 34.83870967741935) internal successors, (1080), 31 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:04,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:04,082 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:04,082 INFO L307 CegarLoopForPetriNet]: 71 programPoint places, 332 predicate places. [2023-11-30 07:22:04,082 INFO L500 AbstractCegarLoop]: Abstraction has has 403 places, 395 transitions, 13983 flow [2023-11-30 07:22:04,082 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.13333333333333) internal successors, (512), 15 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:22:04,086 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_46-escape_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:22:04,164 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-30 07:22:04,164 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-30 07:22:04,165 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 07:22:04,165 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-30 07:22:04,165 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-30 07:22:04,165 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-30 07:22:04,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-30 07:22:04,166 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-30 07:22:04,166 INFO L457 BasicCegarLoop]: Path program histogram: [7, 6, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:22:04,170 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:22:04,170 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:22:04,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:22:04 BasicIcfg [2023-11-30 07:22:04,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:22:04,174 INFO L158 Benchmark]: Toolchain (without parser) took 12687.69ms. Allocated memory was 524.3MB in the beginning and 941.6MB in the end (delta: 417.3MB). Free memory was 479.1MB in the beginning and 388.3MB in the end (delta: 90.8MB). Peak memory consumption was 506.2MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 325.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.51ms. Allocated memory is still 524.3MB. Free memory was 478.8MB in the beginning and 451.1MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.13ms. Allocated memory is still 524.3MB. Free memory was 451.1MB in the beginning and 449.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: Boogie Preprocessor took 17.37ms. Allocated memory is still 524.3MB. Free memory was 449.0MB in the beginning and 447.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: RCFGBuilder took 398.89ms. Allocated memory is still 524.3MB. Free memory was 447.3MB in the beginning and 432.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,175 INFO L158 Benchmark]: TraceAbstraction took 11742.40ms. Allocated memory was 524.3MB in the beginning and 941.6MB in the end (delta: 417.3MB). Free memory was 431.4MB in the beginning and 388.3MB in the end (delta: 43.0MB). Peak memory consumption was 458.0MB. Max. memory is 16.0GB. [2023-11-30 07:22:04,176 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 375.4MB. Free memory is still 325.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 483.51ms. Allocated memory is still 524.3MB. Free memory was 478.8MB in the beginning and 451.1MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.13ms. Allocated memory is still 524.3MB. Free memory was 451.1MB in the beginning and 449.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.37ms. Allocated memory is still 524.3MB. Free memory was 449.0MB in the beginning and 447.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 398.89ms. Allocated memory is still 524.3MB. Free memory was 447.3MB in the beginning and 432.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 11742.40ms. Allocated memory was 524.3MB in the beginning and 941.6MB in the end (delta: 417.3MB). Free memory was 431.4MB in the beginning and 388.3MB in the end (delta: 43.0MB). Peak memory consumption was 458.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 104 locations, 7 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: 11.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2615 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2615 mSDsluCounter, 2964 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2495 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5237 IncrementalHoareTripleChecker+Invalid, 5313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 469 mSDtfsCounter, 5237 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 496 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2882 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13983occurred in iteration=20, InterpolantAutomatonStates: 371, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1019 NumberOfCodeBlocks, 1019 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 999 ConstructedInterpolants, 0 QuantifiedInterpolants, 4463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:22:04,195 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 Received shutdown request...