/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:47:51,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:47:51,136 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 09:47:51,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:47:51,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:47:51,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:47:51,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:47:51,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:47:51,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:47:51,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:47:51,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:47:51,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:47:51,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:47:51,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:47:51,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:47:51,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:47:51,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:47:51,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:47:51,172 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:47:51,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:47:51,173 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:47:51,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:47:51,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:47:51,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:47:51,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:47:51,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:47:51,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:47:51,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:47:51,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:47:51,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:47:51,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:47:51,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:47:51,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:47:51,364 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:47:51,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2023-11-30 09:47:52,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:47:52,575 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:47:52,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2023-11-30 09:47:52,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952cb1544/2ca868f400694df5b341199775950e00/FLAGbc8766d8c [2023-11-30 09:47:52,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952cb1544/2ca868f400694df5b341199775950e00 [2023-11-30 09:47:52,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:47:52,600 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:47:52,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:47:52,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:47:52,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:47:52,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736a310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52, skipping insertion in model container [2023-11-30 09:47:52,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:47:52,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:47:52,787 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:47:52,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:47:52,816 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:47:52,816 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:47:52,820 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:47:52,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52 WrapperNode [2023-11-30 09:47:52,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:47:52,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:47:52,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:47:52,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:47:52,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,868 INFO L138 Inliner]: procedures = 28, calls = 81, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 444 [2023-11-30 09:47:52,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:47:52,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:47:52,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:47:52,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:47:52,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:47:52,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:47:52,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:47:52,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:47:52,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (1/1) ... [2023-11-30 09:47:52,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:47:52,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:47:52,925 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 09:47:52,932 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 09:47:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:47:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 09:47:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:47:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:47:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:47:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 09:47:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:47:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:47:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:47:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:47:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 09:47:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 09:47:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:47:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:47:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:47:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 09:47:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:47:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:47:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:47:52,958 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 09:47:53,061 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:47:53,062 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:47:53,502 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:47:53,682 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:47:53,682 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-30 09:47:53,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:47:53 BoogieIcfgContainer [2023-11-30 09:47:53,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:47:53,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:47:53,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:47:53,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:47:53,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:47:52" (1/3) ... [2023-11-30 09:47:53,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646d5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:47:53, skipping insertion in model container [2023-11-30 09:47:53,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:47:52" (2/3) ... [2023-11-30 09:47:53,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646d5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:47:53, skipping insertion in model container [2023-11-30 09:47:53,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:47:53" (3/3) ... [2023-11-30 09:47:53,691 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2023-11-30 09:47:53,702 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:47:53,702 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-30 09:47:53,703 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:47:53,798 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-30 09:47:53,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 470 transitions, 961 flow [2023-11-30 09:47:53,961 INFO L124 PetriNetUnfolderBase]: 37/467 cut-off events. [2023-11-30 09:47:53,961 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-30 09:47:53,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 467 events. 37/467 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 625 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 377. Up to 2 conditions per place. [2023-11-30 09:47:53,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 443 places, 470 transitions, 961 flow [2023-11-30 09:47:53,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 443 transitions, 901 flow [2023-11-30 09:47:53,985 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:47:53,990 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;@57990356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:47:53,990 INFO L363 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-30 09:47:53,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:47:53,999 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2023-11-30 09:47:54,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:47:54,000 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:54,000 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:54,001 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:54,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1951643484, now seen corresponding path program 1 times [2023-11-30 09:47:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:54,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995341399] [2023-11-30 09:47:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:54,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:54,349 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 09:47:54,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995341399] [2023-11-30 09:47:54,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995341399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:47:54,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:47:54,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:47:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29186784] [2023-11-30 09:47:54,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:47:54,357 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:47:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:47:54,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:47:54,383 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 470 [2023-11-30 09:47:54,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 443 transitions, 901 flow. Second operand has 4 states, 4 states have (on average 366.5) internal successors, (1466), 4 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:54,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:54,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 470 [2023-11-30 09:47:54,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:47:54,705 INFO L124 PetriNetUnfolderBase]: 154/763 cut-off events. [2023-11-30 09:47:54,705 INFO L125 PetriNetUnfolderBase]: For 70/75 co-relation queries the response was YES. [2023-11-30 09:47:54,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 763 events. 154/763 cut-off events. For 70/75 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2593 event pairs, 71 based on Foata normal form. 129/696 useless extension candidates. Maximal degree in co-relation 701. Up to 269 conditions per place. [2023-11-30 09:47:54,713 INFO L140 encePairwiseOnDemand]: 410/470 looper letters, 86 selfloop transitions, 20 changer transitions 12/447 dead transitions. [2023-11-30 09:47:54,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 447 transitions, 1121 flow [2023-11-30 09:47:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:47:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:47:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1975 transitions. [2023-11-30 09:47:54,728 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8404255319148937 [2023-11-30 09:47:54,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1975 transitions. [2023-11-30 09:47:54,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1975 transitions. [2023-11-30 09:47:54,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:47:54,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1975 transitions. [2023-11-30 09:47:54,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 395.0) internal successors, (1975), 5 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:54,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:54,744 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:54,747 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, -2 predicate places. [2023-11-30 09:47:54,747 INFO L500 AbstractCegarLoop]: Abstraction has has 415 places, 447 transitions, 1121 flow [2023-11-30 09:47:54,748 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 366.5) internal successors, (1466), 4 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:54,748 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:54,748 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:54,749 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:47:54,749 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:54,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1897843193, now seen corresponding path program 1 times [2023-11-30 09:47:54,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:54,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374171228] [2023-11-30 09:47:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:54,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:54,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374171228] [2023-11-30 09:47:54,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374171228] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:47:54,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821600] [2023-11-30 09:47:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:54,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:47:54,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:47:54,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 09:47:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:55,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:47:55,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:47:55,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:55,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:47:55,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:47:55,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:47:55,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:47:55,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707350606] [2023-11-30 09:47:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:47:55,095 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:47:55,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:47:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:47:55,098 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 470 [2023-11-30 09:47:55,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 447 transitions, 1121 flow. Second operand has 6 states, 6 states have (on average 367.1666666666667) internal successors, (2203), 6 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:55,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 470 [2023-11-30 09:47:55,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:47:55,403 INFO L124 PetriNetUnfolderBase]: 154/759 cut-off events. [2023-11-30 09:47:55,403 INFO L125 PetriNetUnfolderBase]: For 181/360 co-relation queries the response was YES. [2023-11-30 09:47:55,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 759 events. 154/759 cut-off events. For 181/360 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2561 event pairs, 71 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 859. Up to 265 conditions per place. [2023-11-30 09:47:55,410 INFO L140 encePairwiseOnDemand]: 446/470 looper letters, 70 selfloop transitions, 32 changer transitions 12/443 dead transitions. [2023-11-30 09:47:55,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 443 transitions, 1309 flow [2023-11-30 09:47:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:47:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:47:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2661 transitions. [2023-11-30 09:47:55,414 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8088145896656534 [2023-11-30 09:47:55,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2661 transitions. [2023-11-30 09:47:55,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2661 transitions. [2023-11-30 09:47:55,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:47:55,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2661 transitions. [2023-11-30 09:47:55,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 380.14285714285717) internal successors, (2661), 7 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,425 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 0 predicate places. [2023-11-30 09:47:55,425 INFO L500 AbstractCegarLoop]: Abstraction has has 417 places, 443 transitions, 1309 flow [2023-11-30 09:47:55,426 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.1666666666667) internal successors, (2203), 6 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,426 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:55,426 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:55,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 09:47:55,631 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:55,632 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:55,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1296404364, now seen corresponding path program 1 times [2023-11-30 09:47:55,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:55,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230723030] [2023-11-30 09:47:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230723030] [2023-11-30 09:47:55,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230723030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:47:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309970239] [2023-11-30 09:47:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:55,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:55,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:47:55,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:47:55,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 09:47:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:55,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:47:55,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:47:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:55,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:47:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:55,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309970239] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:47:55,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:47:55,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:47:55,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297988147] [2023-11-30 09:47:55,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:47:55,961 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:47:55,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:47:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:47:55,965 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 470 [2023-11-30 09:47:55,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 443 transitions, 1309 flow. Second operand has 12 states, 12 states have (on average 367.8333333333333) internal successors, (4414), 12 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:55,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:55,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 470 [2023-11-30 09:47:55,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:47:56,307 INFO L124 PetriNetUnfolderBase]: 166/899 cut-off events. [2023-11-30 09:47:56,307 INFO L125 PetriNetUnfolderBase]: For 446/799 co-relation queries the response was YES. [2023-11-30 09:47:56,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 899 events. 166/899 cut-off events. For 446/799 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2978 event pairs, 71 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 1477. Up to 369 conditions per place. [2023-11-30 09:47:56,316 INFO L140 encePairwiseOnDemand]: 442/470 looper letters, 134 selfloop transitions, 72 changer transitions 12/547 dead transitions. [2023-11-30 09:47:56,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 547 transitions, 2345 flow [2023-11-30 09:47:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:47:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:47:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 5328 transitions. [2023-11-30 09:47:56,323 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8097264437689969 [2023-11-30 09:47:56,323 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 5328 transitions. [2023-11-30 09:47:56,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 5328 transitions. [2023-11-30 09:47:56,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:47:56,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 5328 transitions. [2023-11-30 09:47:56,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 380.57142857142856) internal successors, (5328), 14 states have internal predecessors, (5328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:56,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:56,341 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:56,342 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 13 predicate places. [2023-11-30 09:47:56,342 INFO L500 AbstractCegarLoop]: Abstraction has has 430 places, 547 transitions, 2345 flow [2023-11-30 09:47:56,344 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 367.8333333333333) internal successors, (4414), 12 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:56,344 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:56,344 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:56,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-30 09:47:56,549 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 09:47:56,549 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:56,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash -163841277, now seen corresponding path program 2 times [2023-11-30 09:47:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735164523] [2023-11-30 09:47:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:56,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735164523] [2023-11-30 09:47:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735164523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:47:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558394898] [2023-11-30 09:47:56,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:47:56,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:47:56,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:47:56,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 09:47:56,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:47:56,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:47:56,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:47:56,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:47:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:47:56,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:47:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:47:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558394898] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:47:57,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:47:57,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 09:47:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334738399] [2023-11-30 09:47:57,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:47:57,038 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 09:47:57,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 09:47:57,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 09:47:57,043 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 470 [2023-11-30 09:47:57,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 547 transitions, 2345 flow. Second operand has 18 states, 18 states have (on average 336.77777777777777) internal successors, (6062), 18 states have internal predecessors, (6062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:57,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:57,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 470 [2023-11-30 09:47:57,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:47:57,977 INFO L124 PetriNetUnfolderBase]: 276/1188 cut-off events. [2023-11-30 09:47:57,977 INFO L125 PetriNetUnfolderBase]: For 1057/1620 co-relation queries the response was YES. [2023-11-30 09:47:57,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3633 conditions, 1188 events. 276/1188 cut-off events. For 1057/1620 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4560 event pairs, 124 based on Foata normal form. 0/877 useless extension candidates. Maximal degree in co-relation 2149. Up to 540 conditions per place. [2023-11-30 09:47:57,987 INFO L140 encePairwiseOnDemand]: 429/470 looper letters, 174 selfloop transitions, 132 changer transitions 12/616 dead transitions. [2023-11-30 09:47:57,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 616 transitions, 3509 flow [2023-11-30 09:47:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-30 09:47:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-11-30 09:47:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 16631 transitions. [2023-11-30 09:47:58,007 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7221450282240556 [2023-11-30 09:47:58,007 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 16631 transitions. [2023-11-30 09:47:58,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 16631 transitions. [2023-11-30 09:47:58,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:47:58,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 16631 transitions. [2023-11-30 09:47:58,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 339.40816326530614) internal successors, (16631), 49 states have internal predecessors, (16631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 470.0) internal successors, (23500), 50 states have internal predecessors, (23500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,054 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 470.0) internal successors, (23500), 50 states have internal predecessors, (23500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,055 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 60 predicate places. [2023-11-30 09:47:58,055 INFO L500 AbstractCegarLoop]: Abstraction has has 477 places, 616 transitions, 3509 flow [2023-11-30 09:47:58,057 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 336.77777777777777) internal successors, (6062), 18 states have internal predecessors, (6062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,057 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:58,057 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:58,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 09:47:58,261 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:58,262 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:58,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1226428319, now seen corresponding path program 1 times [2023-11-30 09:47:58,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:58,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658038221] [2023-11-30 09:47:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:58,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:58,319 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 09:47:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658038221] [2023-11-30 09:47:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658038221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:47:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:47:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:47:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010448806] [2023-11-30 09:47:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:47:58,321 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:47:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:47:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:47:58,322 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 470 [2023-11-30 09:47:58,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 616 transitions, 3509 flow. Second operand has 4 states, 4 states have (on average 408.5) internal successors, (1634), 4 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:58,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 470 [2023-11-30 09:47:58,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:47:58,565 INFO L124 PetriNetUnfolderBase]: 277/1199 cut-off events. [2023-11-30 09:47:58,565 INFO L125 PetriNetUnfolderBase]: For 1382/2131 co-relation queries the response was YES. [2023-11-30 09:47:58,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3978 conditions, 1199 events. 277/1199 cut-off events. For 1382/2131 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4617 event pairs, 124 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 2261. Up to 540 conditions per place. [2023-11-30 09:47:58,574 INFO L140 encePairwiseOnDemand]: 463/470 looper letters, 32 selfloop transitions, 5 changer transitions 12/625 dead transitions. [2023-11-30 09:47:58,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 625 transitions, 3601 flow [2023-11-30 09:47:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:47:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:47:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2074 transitions. [2023-11-30 09:47:58,577 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8825531914893617 [2023-11-30 09:47:58,577 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2074 transitions. [2023-11-30 09:47:58,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2074 transitions. [2023-11-30 09:47:58,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:47:58,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2074 transitions. [2023-11-30 09:47:58,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 414.8) internal successors, (2074), 5 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,584 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 64 predicate places. [2023-11-30 09:47:58,584 INFO L500 AbstractCegarLoop]: Abstraction has has 481 places, 625 transitions, 3601 flow [2023-11-30 09:47:58,585 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 408.5) internal successors, (1634), 4 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:58,585 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:47:58,585 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:47:58,585 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 09:47:58,585 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:47:58,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:47:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash -105633654, now seen corresponding path program 1 times [2023-11-30 09:47:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:47:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073597622] [2023-11-30 09:47:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:47:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:47:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073597622] [2023-11-30 09:47:58,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073597622] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:47:58,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679854312] [2023-11-30 09:47:58,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:47:58,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:47:58,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:47:58,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:47:58,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 09:47:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:47:58,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 09:47:58,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:47:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:59,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:47:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:47:59,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679854312] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:47:59,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:47:59,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2023-11-30 09:47:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779972720] [2023-11-30 09:47:59,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:47:59,273 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 09:47:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:47:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 09:47:59,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-11-30 09:47:59,280 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 470 [2023-11-30 09:47:59,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 625 transitions, 3601 flow. Second operand has 32 states, 32 states have (on average 368.40625) internal successors, (11789), 32 states have internal predecessors, (11789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:47:59,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:47:59,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 470 [2023-11-30 09:47:59,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:00,414 INFO L124 PetriNetUnfolderBase]: 309/1591 cut-off events. [2023-11-30 09:48:00,414 INFO L125 PetriNetUnfolderBase]: For 2715/3650 co-relation queries the response was YES. [2023-11-30 09:48:00,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6407 conditions, 1591 events. 309/1591 cut-off events. For 2715/3650 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6515 event pairs, 124 based on Foata normal form. 0/1247 useless extension candidates. Maximal degree in co-relation 4457. Up to 833 conditions per place. [2023-11-30 09:48:00,431 INFO L140 encePairwiseOnDemand]: 443/470 looper letters, 336 selfloop transitions, 232 changer transitions 12/918 dead transitions. [2023-11-30 09:48:00,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 918 transitions, 7667 flow [2023-11-30 09:48:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-30 09:48:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-11-30 09:48:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 16649 transitions. [2023-11-30 09:48:00,451 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8050773694390716 [2023-11-30 09:48:00,451 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 16649 transitions. [2023-11-30 09:48:00,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 16649 transitions. [2023-11-30 09:48:00,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:00,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 16649 transitions. [2023-11-30 09:48:00,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 378.3863636363636) internal successors, (16649), 44 states have internal predecessors, (16649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:00,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 470.0) internal successors, (21150), 45 states have internal predecessors, (21150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:00,502 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 470.0) internal successors, (21150), 45 states have internal predecessors, (21150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:00,504 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 107 predicate places. [2023-11-30 09:48:00,504 INFO L500 AbstractCegarLoop]: Abstraction has has 524 places, 918 transitions, 7667 flow [2023-11-30 09:48:00,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 368.40625) internal successors, (11789), 32 states have internal predecessors, (11789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:00,506 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:00,507 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:00,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 09:48:00,711 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:00,713 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:00,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:00,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1948729134, now seen corresponding path program 1 times [2023-11-30 09:48:00,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:00,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615685512] [2023-11-30 09:48:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:00,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-30 09:48:00,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:00,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615685512] [2023-11-30 09:48:00,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615685512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:00,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:00,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-30 09:48:00,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539685037] [2023-11-30 09:48:00,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:00,878 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 09:48:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 09:48:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-30 09:48:00,881 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 470 [2023-11-30 09:48:00,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 918 transitions, 7667 flow. Second operand has 9 states, 9 states have (on average 348.1111111111111) internal successors, (3133), 9 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:00,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:00,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 470 [2023-11-30 09:48:00,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:01,795 INFO L124 PetriNetUnfolderBase]: 855/3185 cut-off events. [2023-11-30 09:48:01,796 INFO L125 PetriNetUnfolderBase]: For 8242/10784 co-relation queries the response was YES. [2023-11-30 09:48:01,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14597 conditions, 3185 events. 855/3185 cut-off events. For 8242/10784 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 18052 event pairs, 402 based on Foata normal form. 0/2268 useless extension candidates. Maximal degree in co-relation 7874. Up to 1662 conditions per place. [2023-11-30 09:48:01,826 INFO L140 encePairwiseOnDemand]: 453/470 looper letters, 646 selfloop transitions, 19 changer transitions 12/1146 dead transitions. [2023-11-30 09:48:01,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1146 transitions, 11562 flow [2023-11-30 09:48:01,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 09:48:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 09:48:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4273 transitions. [2023-11-30 09:48:01,830 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7576241134751773 [2023-11-30 09:48:01,830 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4273 transitions. [2023-11-30 09:48:01,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4273 transitions. [2023-11-30 09:48:01,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:01,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4273 transitions. [2023-11-30 09:48:01,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 356.0833333333333) internal successors, (4273), 12 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:01,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:01,841 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:01,841 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 118 predicate places. [2023-11-30 09:48:01,841 INFO L500 AbstractCegarLoop]: Abstraction has has 535 places, 1146 transitions, 11562 flow [2023-11-30 09:48:01,842 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 348.1111111111111) internal successors, (3133), 9 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:01,842 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:01,843 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:01,843 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:48:01,843 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:01,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:01,843 INFO L85 PathProgramCache]: Analyzing trace with hash -550068489, now seen corresponding path program 1 times [2023-11-30 09:48:01,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:01,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044401346] [2023-11-30 09:48:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:48:01,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:01,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044401346] [2023-11-30 09:48:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044401346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:01,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580102127] [2023-11-30 09:48:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:01,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:01,928 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:01,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 09:48:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:02,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-30 09:48:02,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:48:02,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:48:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:48:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580102127] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:48:02,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:48:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 25 [2023-11-30 09:48:02,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615830716] [2023-11-30 09:48:02,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:48:02,573 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-30 09:48:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:02,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-30 09:48:02,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2023-11-30 09:48:02,577 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 470 [2023-11-30 09:48:02,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1146 transitions, 11562 flow. Second operand has 25 states, 25 states have (on average 323.16) internal successors, (8079), 25 states have internal predecessors, (8079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:02,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:02,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 470 [2023-11-30 09:48:02,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:04,204 INFO L124 PetriNetUnfolderBase]: 1267/4542 cut-off events. [2023-11-30 09:48:04,204 INFO L125 PetriNetUnfolderBase]: For 15770/24263 co-relation queries the response was YES. [2023-11-30 09:48:04,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23559 conditions, 4542 events. 1267/4542 cut-off events. For 15770/24263 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 29165 event pairs, 603 based on Foata normal form. 0/3186 useless extension candidates. Maximal degree in co-relation 12264. Up to 2363 conditions per place. [2023-11-30 09:48:04,270 INFO L140 encePairwiseOnDemand]: 439/470 looper letters, 1014 selfloop transitions, 165 changer transitions 12/1473 dead transitions. [2023-11-30 09:48:04,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1473 transitions, 18071 flow [2023-11-30 09:48:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 09:48:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 09:48:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9755 transitions. [2023-11-30 09:48:04,279 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6918439716312057 [2023-11-30 09:48:04,279 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 9755 transitions. [2023-11-30 09:48:04,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 9755 transitions. [2023-11-30 09:48:04,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:04,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 9755 transitions. [2023-11-30 09:48:04,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 325.1666666666667) internal successors, (9755), 30 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:04,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 470.0) internal successors, (14570), 31 states have internal predecessors, (14570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:04,299 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 470.0) internal successors, (14570), 31 states have internal predecessors, (14570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:04,301 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 146 predicate places. [2023-11-30 09:48:04,302 INFO L500 AbstractCegarLoop]: Abstraction has has 563 places, 1473 transitions, 18071 flow [2023-11-30 09:48:04,303 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 323.16) internal successors, (8079), 25 states have internal predecessors, (8079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:04,303 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:04,303 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:04,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-30 09:48:04,509 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:04,510 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:04,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:04,510 INFO L85 PathProgramCache]: Analyzing trace with hash -780442264, now seen corresponding path program 1 times [2023-11-30 09:48:04,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:04,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343800974] [2023-11-30 09:48:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:04,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:04,613 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 09:48:04,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:04,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343800974] [2023-11-30 09:48:04,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343800974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:04,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:04,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:48:04,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622343251] [2023-11-30 09:48:04,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:04,614 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:48:04,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:04,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:48:04,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:48:04,615 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 470 [2023-11-30 09:48:04,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 1473 transitions, 18071 flow. Second operand has 5 states, 5 states have (on average 412.8) internal successors, (2064), 5 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:04,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:04,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 470 [2023-11-30 09:48:04,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:06,087 INFO L124 PetriNetUnfolderBase]: 1090/6142 cut-off events. [2023-11-30 09:48:06,087 INFO L125 PetriNetUnfolderBase]: For 21173/25013 co-relation queries the response was YES. [2023-11-30 09:48:06,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23778 conditions, 6142 events. 1090/6142 cut-off events. For 21173/25013 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 53143 event pairs, 685 based on Foata normal form. 33/5019 useless extension candidates. Maximal degree in co-relation 12349. Up to 2031 conditions per place. [2023-11-30 09:48:06,128 INFO L140 encePairwiseOnDemand]: 459/470 looper letters, 63 selfloop transitions, 7 changer transitions 12/1492 dead transitions. [2023-11-30 09:48:06,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1492 transitions, 18573 flow [2023-11-30 09:48:06,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:48:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:48:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2502 transitions. [2023-11-30 09:48:06,132 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8872340425531915 [2023-11-30 09:48:06,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2502 transitions. [2023-11-30 09:48:06,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2502 transitions. [2023-11-30 09:48:06,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:06,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2502 transitions. [2023-11-30 09:48:06,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 417.0) internal successors, (2502), 6 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:06,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:06,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:06,144 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 151 predicate places. [2023-11-30 09:48:06,144 INFO L500 AbstractCegarLoop]: Abstraction has has 568 places, 1492 transitions, 18573 flow [2023-11-30 09:48:06,144 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 412.8) internal successors, (2064), 5 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:06,144 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:06,144 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:06,144 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:48:06,144 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:06,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:06,145 INFO L85 PathProgramCache]: Analyzing trace with hash -780442265, now seen corresponding path program 1 times [2023-11-30 09:48:06,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:06,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354127592] [2023-11-30 09:48:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:06,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:06,250 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 09:48:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:06,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354127592] [2023-11-30 09:48:06,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354127592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:06,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:06,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 09:48:06,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651247311] [2023-11-30 09:48:06,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:06,251 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 09:48:06,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:06,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 09:48:06,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:48:06,253 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 470 [2023-11-30 09:48:06,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1492 transitions, 18573 flow. Second operand has 5 states, 5 states have (on average 412.8) internal successors, (2064), 5 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:06,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:06,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 470 [2023-11-30 09:48:06,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:07,424 INFO L124 PetriNetUnfolderBase]: 1016/5095 cut-off events. [2023-11-30 09:48:07,424 INFO L125 PetriNetUnfolderBase]: For 20506/26631 co-relation queries the response was YES. [2023-11-30 09:48:07,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23091 conditions, 5095 events. 1016/5095 cut-off events. For 20506/26631 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 40574 event pairs, 571 based on Foata normal form. 15/4108 useless extension candidates. Maximal degree in co-relation 12416. Up to 1952 conditions per place. [2023-11-30 09:48:07,460 INFO L140 encePairwiseOnDemand]: 464/470 looper letters, 60 selfloop transitions, 7 changer transitions 12/1489 dead transitions. [2023-11-30 09:48:07,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1489 transitions, 18647 flow [2023-11-30 09:48:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:48:07,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:48:07,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2496 transitions. [2023-11-30 09:48:07,462 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8851063829787233 [2023-11-30 09:48:07,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2496 transitions. [2023-11-30 09:48:07,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2496 transitions. [2023-11-30 09:48:07,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:07,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2496 transitions. [2023-11-30 09:48:07,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:07,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:07,466 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:07,466 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 156 predicate places. [2023-11-30 09:48:07,466 INFO L500 AbstractCegarLoop]: Abstraction has has 573 places, 1489 transitions, 18647 flow [2023-11-30 09:48:07,467 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 412.8) internal successors, (2064), 5 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:07,467 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:07,467 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:07,467 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 09:48:07,467 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:07,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:07,467 INFO L85 PathProgramCache]: Analyzing trace with hash 305499688, now seen corresponding path program 1 times [2023-11-30 09:48:07,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:07,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32426855] [2023-11-30 09:48:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:07,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:07,546 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 09:48:07,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:07,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32426855] [2023-11-30 09:48:07,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32426855] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764932015] [2023-11-30 09:48:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:07,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:07,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:07,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:07,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 09:48:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:07,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:48:07,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:07,713 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 09:48:07,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:48:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 09:48:07,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764932015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:48:07,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:48:07,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:48:07,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194035862] [2023-11-30 09:48:07,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:48:07,746 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:48:07,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:07,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:48:07,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:48:07,750 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 470 [2023-11-30 09:48:07,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 1489 transitions, 18647 flow. Second operand has 12 states, 12 states have (on average 409.8333333333333) internal successors, (4918), 12 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:07,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:07,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 470 [2023-11-30 09:48:07,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:09,028 INFO L124 PetriNetUnfolderBase]: 1056/5799 cut-off events. [2023-11-30 09:48:09,028 INFO L125 PetriNetUnfolderBase]: For 25641/30448 co-relation queries the response was YES. [2023-11-30 09:48:09,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25267 conditions, 5799 events. 1056/5799 cut-off events. For 25641/30448 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 49052 event pairs, 625 based on Foata normal form. 0/4708 useless extension candidates. Maximal degree in co-relation 12843. Up to 1995 conditions per place. [2023-11-30 09:48:09,074 INFO L140 encePairwiseOnDemand]: 463/470 looper letters, 99 selfloop transitions, 26 changer transitions 12/1515 dead transitions. [2023-11-30 09:48:09,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 1515 transitions, 19089 flow [2023-11-30 09:48:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:48:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:48:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 5763 transitions. [2023-11-30 09:48:09,077 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8758358662613982 [2023-11-30 09:48:09,077 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 5763 transitions. [2023-11-30 09:48:09,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 5763 transitions. [2023-11-30 09:48:09,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:09,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 5763 transitions. [2023-11-30 09:48:09,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 411.64285714285717) internal successors, (5763), 14 states have internal predecessors, (5763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:09,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:09,085 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:09,085 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 169 predicate places. [2023-11-30 09:48:09,085 INFO L500 AbstractCegarLoop]: Abstraction has has 586 places, 1515 transitions, 19089 flow [2023-11-30 09:48:09,086 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 409.8333333333333) internal successors, (4918), 12 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:09,086 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:09,086 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:09,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 09:48:09,291 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:09,291 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:09,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash 512877328, now seen corresponding path program 1 times [2023-11-30 09:48:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:09,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775272189] [2023-11-30 09:48:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:09,525 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 09:48:09,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775272189] [2023-11-30 09:48:09,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775272189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:09,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 09:48:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271063090] [2023-11-30 09:48:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:09,527 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:48:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:09,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:48:09,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:48:09,529 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 470 [2023-11-30 09:48:09,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1515 transitions, 19089 flow. Second operand has 6 states, 6 states have (on average 364.5) internal successors, (2187), 6 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:09,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:09,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 470 [2023-11-30 09:48:09,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:11,250 INFO L124 PetriNetUnfolderBase]: 1152/6765 cut-off events. [2023-11-30 09:48:11,250 INFO L125 PetriNetUnfolderBase]: For 39849/48481 co-relation queries the response was YES. [2023-11-30 09:48:11,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35887 conditions, 6765 events. 1152/6765 cut-off events. For 39849/48481 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 56015 event pairs, 566 based on Foata normal form. 23/5602 useless extension candidates. Maximal degree in co-relation 23351. Up to 2911 conditions per place. [2023-11-30 09:48:11,293 INFO L140 encePairwiseOnDemand]: 459/470 looper letters, 1557 selfloop transitions, 12 changer transitions 28/2237 dead transitions. [2023-11-30 09:48:11,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 2237 transitions, 33604 flow [2023-11-30 09:48:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:48:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:48:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3359 transitions. [2023-11-30 09:48:11,295 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7940898345153664 [2023-11-30 09:48:11,295 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3359 transitions. [2023-11-30 09:48:11,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3359 transitions. [2023-11-30 09:48:11,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:11,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3359 transitions. [2023-11-30 09:48:11,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 373.22222222222223) internal successors, (3359), 9 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:11,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 470.0) internal successors, (4700), 10 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:11,300 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 470.0) internal successors, (4700), 10 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:11,301 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 177 predicate places. [2023-11-30 09:48:11,301 INFO L500 AbstractCegarLoop]: Abstraction has has 594 places, 2237 transitions, 33604 flow [2023-11-30 09:48:11,301 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 364.5) internal successors, (2187), 6 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:11,301 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:11,301 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:11,301 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 09:48:11,301 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:11,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2084728283, now seen corresponding path program 1 times [2023-11-30 09:48:11,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:11,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497593057] [2023-11-30 09:48:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:11,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:48:11,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497593057] [2023-11-30 09:48:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497593057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 09:48:11,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13448715] [2023-11-30 09:48:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:11,551 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 09:48:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 09:48:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:48:11,553 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 470 [2023-11-30 09:48:11,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 2237 transitions, 33604 flow. Second operand has 8 states, 8 states have (on average 359.875) internal successors, (2879), 8 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:11,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:11,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 470 [2023-11-30 09:48:11,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:14,796 INFO L124 PetriNetUnfolderBase]: 1314/9335 cut-off events. [2023-11-30 09:48:14,797 INFO L125 PetriNetUnfolderBase]: For 65089/74347 co-relation queries the response was YES. [2023-11-30 09:48:14,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49915 conditions, 9335 events. 1314/9335 cut-off events. For 65089/74347 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 85289 event pairs, 614 based on Foata normal form. 39/7910 useless extension candidates. Maximal degree in co-relation 34789. Up to 3781 conditions per place. [2023-11-30 09:48:14,857 INFO L140 encePairwiseOnDemand]: 458/470 looper letters, 2114 selfloop transitions, 72 changer transitions 59/2880 dead transitions. [2023-11-30 09:48:14,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 2880 transitions, 49624 flow [2023-11-30 09:48:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 09:48:14,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 09:48:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3657 transitions. [2023-11-30 09:48:14,861 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7780851063829787 [2023-11-30 09:48:14,861 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3657 transitions. [2023-11-30 09:48:14,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3657 transitions. [2023-11-30 09:48:14,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:14,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3657 transitions. [2023-11-30 09:48:14,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 365.7) internal successors, (3657), 10 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:14,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 470.0) internal successors, (5170), 11 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:14,867 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 470.0) internal successors, (5170), 11 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:14,867 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 186 predicate places. [2023-11-30 09:48:14,867 INFO L500 AbstractCegarLoop]: Abstraction has has 603 places, 2880 transitions, 49624 flow [2023-11-30 09:48:14,867 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 359.875) internal successors, (2879), 8 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:14,867 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:14,868 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:14,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 09:48:14,868 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:14,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:14,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1817227696, now seen corresponding path program 1 times [2023-11-30 09:48:14,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:14,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958689584] [2023-11-30 09:48:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:14,936 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 09:48:14,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:14,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958689584] [2023-11-30 09:48:14,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958689584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:14,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:14,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:48:14,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68665803] [2023-11-30 09:48:14,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:14,937 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:48:14,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:14,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:48:14,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:48:14,939 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 470 [2023-11-30 09:48:14,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 2880 transitions, 49624 flow. Second operand has 4 states, 4 states have (on average 408.5) internal successors, (1634), 4 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:14,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:14,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 470 [2023-11-30 09:48:14,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:20,210 INFO L124 PetriNetUnfolderBase]: 1514/12672 cut-off events. [2023-11-30 09:48:20,210 INFO L125 PetriNetUnfolderBase]: For 85624/92641 co-relation queries the response was YES. [2023-11-30 09:48:20,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68221 conditions, 12672 events. 1514/12672 cut-off events. For 85624/92641 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 122606 event pairs, 659 based on Foata normal form. 0/10933 useless extension candidates. Maximal degree in co-relation 51659. Up to 5353 conditions per place. [2023-11-30 09:48:20,296 INFO L140 encePairwiseOnDemand]: 463/470 looper letters, 74 selfloop transitions, 5 changer transitions 59/2889 dead transitions. [2023-11-30 09:48:20,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 2889 transitions, 49890 flow [2023-11-30 09:48:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:48:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:48:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2073 transitions. [2023-11-30 09:48:20,298 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.882127659574468 [2023-11-30 09:48:20,298 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2073 transitions. [2023-11-30 09:48:20,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2073 transitions. [2023-11-30 09:48:20,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:20,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2073 transitions. [2023-11-30 09:48:20,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 414.6) internal successors, (2073), 5 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:20,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:20,301 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:20,302 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 190 predicate places. [2023-11-30 09:48:20,302 INFO L500 AbstractCegarLoop]: Abstraction has has 607 places, 2889 transitions, 49890 flow [2023-11-30 09:48:20,302 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 408.5) internal successors, (1634), 4 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:20,302 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:20,302 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:20,302 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 09:48:20,302 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:20,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash 387097137, now seen corresponding path program 1 times [2023-11-30 09:48:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460997498] [2023-11-30 09:48:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:20,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:48:20,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:20,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460997498] [2023-11-30 09:48:20,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460997498] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:20,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296644305] [2023-11-30 09:48:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:20,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:20,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:20,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 09:48:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:20,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:48:20,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:20,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:48:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296644305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:48:20,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-11-30 09:48:20,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804713074] [2023-11-30 09:48:20,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:20,989 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:48:20,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:48:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:48:20,991 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 470 [2023-11-30 09:48:20,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 2889 transitions, 49890 flow. Second operand has 4 states, 4 states have (on average 415.75) internal successors, (1663), 4 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:20,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:20,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 470 [2023-11-30 09:48:20,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:25,930 INFO L124 PetriNetUnfolderBase]: 1344/11899 cut-off events. [2023-11-30 09:48:25,930 INFO L125 PetriNetUnfolderBase]: For 87576/92950 co-relation queries the response was YES. [2023-11-30 09:48:25,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65416 conditions, 11899 events. 1344/11899 cut-off events. For 87576/92950 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 112864 event pairs, 482 based on Foata normal form. 1/10385 useless extension candidates. Maximal degree in co-relation 51251. Up to 5158 conditions per place. [2023-11-30 09:48:25,998 INFO L140 encePairwiseOnDemand]: 466/470 looper letters, 63 selfloop transitions, 3 changer transitions 59/2886 dead transitions. [2023-11-30 09:48:25,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 2886 transitions, 50022 flow [2023-11-30 09:48:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:48:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:48:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1673 transitions. [2023-11-30 09:48:25,999 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8898936170212766 [2023-11-30 09:48:25,999 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1673 transitions. [2023-11-30 09:48:25,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1673 transitions. [2023-11-30 09:48:26,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:26,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1673 transitions. [2023-11-30 09:48:26,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 418.25) internal successors, (1673), 4 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:26,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 470.0) internal successors, (2350), 5 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:26,002 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 470.0) internal successors, (2350), 5 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:26,002 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 192 predicate places. [2023-11-30 09:48:26,002 INFO L500 AbstractCegarLoop]: Abstraction has has 609 places, 2886 transitions, 50022 flow [2023-11-30 09:48:26,002 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 415.75) internal successors, (1663), 4 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:26,003 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:26,003 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:26,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 09:48:26,207 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:26,208 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:26,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash 387097139, now seen corresponding path program 1 times [2023-11-30 09:48:26,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:26,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332317966] [2023-11-30 09:48:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:26,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:26,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332317966] [2023-11-30 09:48:26,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332317966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:26,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:48:26,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:48:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646016552] [2023-11-30 09:48:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:26,322 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:48:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:26,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:48:26,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:48:26,323 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 470 [2023-11-30 09:48:26,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 2886 transitions, 50022 flow. Second operand has 4 states, 4 states have (on average 409.25) internal successors, (1637), 4 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:26,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:26,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 470 [2023-11-30 09:48:26,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:32,608 INFO L124 PetriNetUnfolderBase]: 2177/18205 cut-off events. [2023-11-30 09:48:32,608 INFO L125 PetriNetUnfolderBase]: For 171770/178964 co-relation queries the response was YES. [2023-11-30 09:48:32,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86704 conditions, 18205 events. 2177/18205 cut-off events. For 171770/178964 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 200098 event pairs, 996 based on Foata normal form. 117/15900 useless extension candidates. Maximal degree in co-relation 54116. Up to 5929 conditions per place. [2023-11-30 09:48:32,711 INFO L140 encePairwiseOnDemand]: 462/470 looper letters, 117 selfloop transitions, 6 changer transitions 104/2980 dead transitions. [2023-11-30 09:48:32,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 2980 transitions, 53642 flow [2023-11-30 09:48:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:48:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:48:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2077 transitions. [2023-11-30 09:48:32,712 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8838297872340426 [2023-11-30 09:48:32,712 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2077 transitions. [2023-11-30 09:48:32,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2077 transitions. [2023-11-30 09:48:32,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:32,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2077 transitions. [2023-11-30 09:48:32,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 415.4) internal successors, (2077), 5 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:32,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:32,715 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:32,716 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 196 predicate places. [2023-11-30 09:48:32,716 INFO L500 AbstractCegarLoop]: Abstraction has has 613 places, 2980 transitions, 53642 flow [2023-11-30 09:48:32,716 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 409.25) internal successors, (1637), 4 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:32,716 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:32,717 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:32,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 09:48:32,717 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:32,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1770106355, now seen corresponding path program 2 times [2023-11-30 09:48:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:32,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345979117] [2023-11-30 09:48:32,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:32,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:33,109 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 57 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:48:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345979117] [2023-11-30 09:48:33,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345979117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:33,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613996721] [2023-11-30 09:48:33,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:48:33,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:33,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:33,124 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:33,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 09:48:33,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:48:33,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:48:33,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:48:33,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-30 09:48:33,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:48:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-30 09:48:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613996721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:48:33,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:48:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7, 7] total 27 [2023-11-30 09:48:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418976236] [2023-11-30 09:48:33,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:48:33,667 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-30 09:48:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-30 09:48:33,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2023-11-30 09:48:33,670 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 470 [2023-11-30 09:48:33,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 2980 transitions, 53642 flow. Second operand has 27 states, 27 states have (on average 318.6666666666667) internal successors, (8604), 27 states have internal predecessors, (8604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:33,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:33,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 470 [2023-11-30 09:48:33,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:43,588 INFO L124 PetriNetUnfolderBase]: 2896/24528 cut-off events. [2023-11-30 09:48:43,589 INFO L125 PetriNetUnfolderBase]: For 255925/269599 co-relation queries the response was YES. [2023-11-30 09:48:43,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123956 conditions, 24528 events. 2896/24528 cut-off events. For 255925/269599 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 290323 event pairs, 1328 based on Foata normal form. 2/21280 useless extension candidates. Maximal degree in co-relation 77927. Up to 7775 conditions per place. [2023-11-30 09:48:43,741 INFO L140 encePairwiseOnDemand]: 432/470 looper letters, 2105 selfloop transitions, 1244 changer transitions 134/3772 dead transitions. [2023-11-30 09:48:43,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 3772 transitions, 76266 flow [2023-11-30 09:48:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-30 09:48:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-11-30 09:48:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 13692 transitions. [2023-11-30 09:48:43,748 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6774863928748145 [2023-11-30 09:48:43,748 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 13692 transitions. [2023-11-30 09:48:43,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 13692 transitions. [2023-11-30 09:48:43,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:43,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 13692 transitions. [2023-11-30 09:48:43,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 318.4186046511628) internal successors, (13692), 43 states have internal predecessors, (13692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:43,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 470.0) internal successors, (20680), 44 states have internal predecessors, (20680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:43,769 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 470.0) internal successors, (20680), 44 states have internal predecessors, (20680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:43,769 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 237 predicate places. [2023-11-30 09:48:43,769 INFO L500 AbstractCegarLoop]: Abstraction has has 654 places, 3772 transitions, 76266 flow [2023-11-30 09:48:43,770 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 318.6666666666667) internal successors, (8604), 27 states have internal predecessors, (8604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:43,770 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:43,770 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:43,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-30 09:48:43,975 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 09:48:43,975 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:43,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1126380712, now seen corresponding path program 1 times [2023-11-30 09:48:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144409495] [2023-11-30 09:48:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:44,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144409495] [2023-11-30 09:48:44,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144409495] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:44,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093149225] [2023-11-30 09:48:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:44,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:44,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:44,081 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:44,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 09:48:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:44,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 09:48:44,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:44,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:48:44,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093149225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:48:44,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:48:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-30 09:48:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760514352] [2023-11-30 09:48:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:48:44,436 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:48:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:48:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 09:48:44,437 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 470 [2023-11-30 09:48:44,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 3772 transitions, 76266 flow. Second operand has 4 states, 4 states have (on average 419.25) internal successors, (1677), 4 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:44,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:44,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 470 [2023-11-30 09:48:44,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:48:55,165 INFO L124 PetriNetUnfolderBase]: 3200/25042 cut-off events. [2023-11-30 09:48:55,166 INFO L125 PetriNetUnfolderBase]: For 316589/333668 co-relation queries the response was YES. [2023-11-30 09:48:55,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134180 conditions, 25042 events. 3200/25042 cut-off events. For 316589/333668 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 294864 event pairs, 1172 based on Foata normal form. 57/21666 useless extension candidates. Maximal degree in co-relation 79370. Up to 8143 conditions per place. [2023-11-30 09:48:55,378 INFO L140 encePairwiseOnDemand]: 464/470 looper letters, 148 selfloop transitions, 25 changer transitions 134/3805 dead transitions. [2023-11-30 09:48:55,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 3805 transitions, 78050 flow [2023-11-30 09:48:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:48:55,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:48:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1702 transitions. [2023-11-30 09:48:55,379 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9053191489361702 [2023-11-30 09:48:55,380 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1702 transitions. [2023-11-30 09:48:55,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1702 transitions. [2023-11-30 09:48:55,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:48:55,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1702 transitions. [2023-11-30 09:48:55,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 425.5) internal successors, (1702), 4 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:55,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 470.0) internal successors, (2350), 5 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:55,382 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 470.0) internal successors, (2350), 5 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:55,382 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 239 predicate places. [2023-11-30 09:48:55,382 INFO L500 AbstractCegarLoop]: Abstraction has has 656 places, 3805 transitions, 78050 flow [2023-11-30 09:48:55,383 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 419.25) internal successors, (1677), 4 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:55,383 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:48:55,383 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:48:55,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-30 09:48:55,588 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 09:48:55,588 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:48:55,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:48:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1126380711, now seen corresponding path program 1 times [2023-11-30 09:48:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:48:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549945979] [2023-11-30 09:48:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:48:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:55,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:48:55,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549945979] [2023-11-30 09:48:55,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549945979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:48:55,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052676394] [2023-11-30 09:48:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:48:55,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:48:55,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:48:55,677 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:48:55,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 09:48:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:48:55,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 09:48:55,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:48:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:56,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:48:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:48:56,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052676394] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:48:56,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:48:56,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-30 09:48:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787160880] [2023-11-30 09:48:56,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:48:56,258 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 09:48:56,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:48:56,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 09:48:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-30 09:48:56,260 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 470 [2023-11-30 09:48:56,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 3805 transitions, 78050 flow. Second operand has 7 states, 7 states have (on average 419.85714285714283) internal successors, (2939), 7 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:48:56,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:48:56,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 470 [2023-11-30 09:48:56,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:49:12,062 INFO L124 PetriNetUnfolderBase]: 6380/40833 cut-off events. [2023-11-30 09:49:12,062 INFO L125 PetriNetUnfolderBase]: For 634624/653931 co-relation queries the response was YES. [2023-11-30 09:49:12,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219511 conditions, 40833 events. 6380/40833 cut-off events. For 634624/653931 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 538987 event pairs, 2409 based on Foata normal form. 298/35354 useless extension candidates. Maximal degree in co-relation 94889. Up to 11155 conditions per place. [2023-11-30 09:49:12,664 INFO L140 encePairwiseOnDemand]: 465/470 looper letters, 396 selfloop transitions, 49 changer transitions 134/4077 dead transitions. [2023-11-30 09:49:12,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 4077 transitions, 89654 flow [2023-11-30 09:49:12,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 09:49:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 09:49:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2575 transitions. [2023-11-30 09:49:12,666 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9131205673758865 [2023-11-30 09:49:12,666 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2575 transitions. [2023-11-30 09:49:12,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2575 transitions. [2023-11-30 09:49:12,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:49:12,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2575 transitions. [2023-11-30 09:49:12,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 429.1666666666667) internal successors, (2575), 6 states have internal predecessors, (2575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:12,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:12,689 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:12,690 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 244 predicate places. [2023-11-30 09:49:12,690 INFO L500 AbstractCegarLoop]: Abstraction has has 661 places, 4077 transitions, 89654 flow [2023-11-30 09:49:12,690 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 419.85714285714283) internal successors, (2939), 7 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:12,690 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:49:12,690 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:49:12,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-30 09:49:12,895 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:49:12,895 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:49:12,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:49:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1126380718, now seen corresponding path program 1 times [2023-11-30 09:49:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:49:12,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838014070] [2023-11-30 09:49:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:49:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:49:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:49:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:49:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:49:13,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838014070] [2023-11-30 09:49:13,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838014070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:49:13,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461337582] [2023-11-30 09:49:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:49:13,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:49:13,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:49:13,065 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:49:13,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 09:49:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:49:13,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:49:13,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:49:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:49:13,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:49:13,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461337582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:49:13,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:49:13,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-30 09:49:13,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642513342] [2023-11-30 09:49:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:49:13,707 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:49:13,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:49:13,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:49:13,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-30 09:49:13,709 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 470 [2023-11-30 09:49:13,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 4077 transitions, 89654 flow. Second operand has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:13,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:49:13,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 470 [2023-11-30 09:49:13,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:49:30,457 INFO L124 PetriNetUnfolderBase]: 5527/39639 cut-off events. [2023-11-30 09:49:30,457 INFO L125 PetriNetUnfolderBase]: For 663232/681466 co-relation queries the response was YES. [2023-11-30 09:49:30,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205111 conditions, 39639 events. 5527/39639 cut-off events. For 663232/681466 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 521658 event pairs, 2083 based on Foata normal form. 321/34753 useless extension candidates. Maximal degree in co-relation 91406. Up to 10283 conditions per place. [2023-11-30 09:49:30,890 INFO L140 encePairwiseOnDemand]: 461/470 looper letters, 359 selfloop transitions, 48 changer transitions 134/4033 dead transitions. [2023-11-30 09:49:30,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 4033 transitions, 88950 flow [2023-11-30 09:49:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:49:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:49:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2911 transitions. [2023-11-30 09:49:30,904 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8848024316109423 [2023-11-30 09:49:30,904 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2911 transitions. [2023-11-30 09:49:30,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2911 transitions. [2023-11-30 09:49:30,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:49:30,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2911 transitions. [2023-11-30 09:49:30,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 415.85714285714283) internal successors, (2911), 7 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:30,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:30,912 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:30,912 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 249 predicate places. [2023-11-30 09:49:30,912 INFO L500 AbstractCegarLoop]: Abstraction has has 666 places, 4033 transitions, 88950 flow [2023-11-30 09:49:30,913 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:30,913 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:49:30,913 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:49:30,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 09:49:31,113 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:49:31,114 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:49:31,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:49:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1126380717, now seen corresponding path program 1 times [2023-11-30 09:49:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:49:31,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712072121] [2023-11-30 09:49:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:49:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:49:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:49:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:49:31,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:49:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712072121] [2023-11-30 09:49:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712072121] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:49:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77246465] [2023-11-30 09:49:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:49:31,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:49:31,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:49:31,322 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:49:31,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-30 09:49:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:49:31,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:49:31,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:49:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:49:31,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:49:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:49:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77246465] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:49:31,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:49:31,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-11-30 09:49:31,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286694152] [2023-11-30 09:49:31,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:49:31,954 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:49:31,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:49:31,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:49:31,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:49:31,956 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 470 [2023-11-30 09:49:31,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 4033 transitions, 88950 flow. Second operand has 12 states, 12 states have (on average 338.5) internal successors, (4062), 12 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:49:31,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:49:31,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 470 [2023-11-30 09:49:31,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:49:59,494 INFO L124 PetriNetUnfolderBase]: 7972/61374 cut-off events. [2023-11-30 09:49:59,495 INFO L125 PetriNetUnfolderBase]: For 1297440/1321462 co-relation queries the response was YES. [2023-11-30 09:50:00,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314031 conditions, 61374 events. 7972/61374 cut-off events. For 1297440/1321462 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 891421 event pairs, 3048 based on Foata normal form. 140/54379 useless extension candidates. Maximal degree in co-relation 137384. Up to 14407 conditions per place. [2023-11-30 09:50:00,629 INFO L140 encePairwiseOnDemand]: 451/470 looper letters, 4105 selfloop transitions, 639 changer transitions 174/5320 dead transitions. [2023-11-30 09:50:00,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 5320 transitions, 132932 flow [2023-11-30 09:50:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-30 09:50:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-30 09:50:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 6411 transitions. [2023-11-30 09:50:00,636 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7179171332586786 [2023-11-30 09:50:00,636 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 6411 transitions. [2023-11-30 09:50:00,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 6411 transitions. [2023-11-30 09:50:00,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:50:00,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 6411 transitions. [2023-11-30 09:50:00,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 337.42105263157896) internal successors, (6411), 19 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:00,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 470.0) internal successors, (9400), 20 states have internal predecessors, (9400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:00,646 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 470.0) internal successors, (9400), 20 states have internal predecessors, (9400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:00,646 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 265 predicate places. [2023-11-30 09:50:00,647 INFO L500 AbstractCegarLoop]: Abstraction has has 682 places, 5320 transitions, 132932 flow [2023-11-30 09:50:00,647 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 338.5) internal successors, (4062), 12 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:00,647 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:50:00,647 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:50:00,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-30 09:50:00,852 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-30 09:50:00,853 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:50:00,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:50:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 385568138, now seen corresponding path program 1 times [2023-11-30 09:50:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:50:00,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295297920] [2023-11-30 09:50:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:50:00,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:50:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:50:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:50:00,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:50:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295297920] [2023-11-30 09:50:00,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295297920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:50:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185312446] [2023-11-30 09:50:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:50:00,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:50:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:50:00,957 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:50:00,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-30 09:50:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:50:01,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:50:01,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:50:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:50:01,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:50:01,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185312446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:50:01,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:50:01,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:50:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101879402] [2023-11-30 09:50:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:50:01,228 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:50:01,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:50:01,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:50:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:50:01,230 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 470 [2023-11-30 09:50:01,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 5320 transitions, 132932 flow. Second operand has 6 states, 6 states have (on average 409.1666666666667) internal successors, (2455), 6 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:01,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:50:01,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 470 [2023-11-30 09:50:01,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:50:32,914 INFO L124 PetriNetUnfolderBase]: 7992/58948 cut-off events. [2023-11-30 09:50:32,914 INFO L125 PetriNetUnfolderBase]: For 1406574/1436213 co-relation queries the response was YES. [2023-11-30 09:50:33,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319803 conditions, 58948 events. 7992/58948 cut-off events. For 1406574/1436213 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 851581 event pairs, 3042 based on Foata normal form. 97/52400 useless extension candidates. Maximal degree in co-relation 138921. Up to 14407 conditions per place. [2023-11-30 09:50:33,702 INFO L140 encePairwiseOnDemand]: 464/470 looper letters, 685 selfloop transitions, 8 changer transitions 174/5319 dead transitions. [2023-11-30 09:50:33,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 5319 transitions, 134634 flow [2023-11-30 09:50:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:50:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:50:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2880 transitions. [2023-11-30 09:50:33,704 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8753799392097265 [2023-11-30 09:50:33,704 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2880 transitions. [2023-11-30 09:50:33,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2880 transitions. [2023-11-30 09:50:33,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:50:33,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2880 transitions. [2023-11-30 09:50:33,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 411.42857142857144) internal successors, (2880), 7 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:33,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:33,708 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 470.0) internal successors, (3760), 8 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:33,708 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 270 predicate places. [2023-11-30 09:50:33,708 INFO L500 AbstractCegarLoop]: Abstraction has has 687 places, 5319 transitions, 134634 flow [2023-11-30 09:50:33,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 409.1666666666667) internal successors, (2455), 6 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:33,708 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:50:33,710 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:50:33,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-30 09:50:33,915 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-30 09:50:33,917 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:50:33,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:50:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -932288428, now seen corresponding path program 1 times [2023-11-30 09:50:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:50:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118086436] [2023-11-30 09:50:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:50:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:50:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:50:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:50:34,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:50:34,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118086436] [2023-11-30 09:50:34,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118086436] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:50:34,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484393283] [2023-11-30 09:50:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:50:34,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:50:34,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:50:34,045 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:50:34,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-30 09:50:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:50:34,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:50:34,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:50:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:50:34,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:50:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:50:34,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484393283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:50:34,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:50:34,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:50:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630310699] [2023-11-30 09:50:34,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:50:34,373 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:50:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:50:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:50:34,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:50:34,375 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 470 [2023-11-30 09:50:34,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 5319 transitions, 134634 flow. Second operand has 12 states, 12 states have (on average 409.8333333333333) internal successors, (4918), 12 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:50:34,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:50:34,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 470 [2023-11-30 09:50:34,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:51:27,676 INFO L124 PetriNetUnfolderBase]: 9187/74652 cut-off events. [2023-11-30 09:51:27,676 INFO L125 PetriNetUnfolderBase]: For 1691658/1720897 co-relation queries the response was YES. [2023-11-30 09:51:28,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448607 conditions, 74652 events. 9187/74652 cut-off events. For 1691658/1720897 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 1060507 event pairs, 3045 based on Foata normal form. 81/66611 useless extension candidates. Maximal degree in co-relation 261964. Up to 23839 conditions per place. [2023-11-30 09:51:28,776 INFO L140 encePairwiseOnDemand]: 463/470 looper letters, 701 selfloop transitions, 18 changer transitions 174/5345 dead transitions. [2023-11-30 09:51:28,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 5345 transitions, 136584 flow [2023-11-30 09:51:28,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:51:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:51:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 5757 transitions. [2023-11-30 09:51:28,779 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8749240121580547 [2023-11-30 09:51:28,779 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 5757 transitions. [2023-11-30 09:51:28,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 5757 transitions. [2023-11-30 09:51:28,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:51:28,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 5757 transitions. [2023-11-30 09:51:28,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 411.2142857142857) internal successors, (5757), 14 states have internal predecessors, (5757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:51:28,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:51:28,785 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 470.0) internal successors, (7050), 15 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:51:28,786 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 283 predicate places. [2023-11-30 09:51:28,786 INFO L500 AbstractCegarLoop]: Abstraction has has 700 places, 5345 transitions, 136584 flow [2023-11-30 09:51:28,786 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 409.8333333333333) internal successors, (4918), 12 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:51:28,786 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:51:28,787 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:51:28,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-30 09:51:28,989 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:51:28,989 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:51:28,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:51:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1326200990, now seen corresponding path program 2 times [2023-11-30 09:51:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:51:28,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005694450] [2023-11-30 09:51:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:51:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:51:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:51:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 1022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:51:29,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:51:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005694450] [2023-11-30 09:51:29,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005694450] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:51:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117235348] [2023-11-30 09:51:29,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:51:29,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:51:29,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:51:29,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:51:29,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-30 09:51:29,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:51:29,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:51:29,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:51:29,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:51:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:51:29,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:51:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:51:30,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117235348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:51:30,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:51:30,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 37 [2023-11-30 09:51:30,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661533900] [2023-11-30 09:51:30,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:51:30,215 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-30 09:51:30,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:51:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-30 09:51:30,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2023-11-30 09:51:30,221 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 470 [2023-11-30 09:51:30,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 700 places, 5345 transitions, 136584 flow. Second operand has 38 states, 38 states have (on average 335.2105263157895) internal successors, (12738), 38 states have internal predecessors, (12738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:51:30,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:51:30,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 470 [2023-11-30 09:51:30,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:52:37,174 INFO L124 PetriNetUnfolderBase]: 9449/78165 cut-off events. [2023-11-30 09:52:37,175 INFO L125 PetriNetUnfolderBase]: For 1908904/1942581 co-relation queries the response was YES. [2023-11-30 09:52:37,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507118 conditions, 78165 events. 9449/78165 cut-off events. For 1908904/1942581 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 1105963 event pairs, 3045 based on Foata normal form. 81/69864 useless extension candidates. Maximal degree in co-relation 313282. Up to 26314 conditions per place. [2023-11-30 09:52:38,351 INFO L140 encePairwiseOnDemand]: 430/470 looper letters, 2701 selfloop transitions, 2538 changer transitions 174/5855 dead transitions. [2023-11-30 09:52:38,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 817 places, 5855 transitions, 159244 flow [2023-11-30 09:52:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-11-30 09:52:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2023-11-30 09:52:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 40057 transitions. [2023-11-30 09:52:38,370 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7161988199535133 [2023-11-30 09:52:38,370 INFO L72 ComplementDD]: Start complementDD. Operand 119 states and 40057 transitions. [2023-11-30 09:52:38,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 40057 transitions. [2023-11-30 09:52:38,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:52:38,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 119 states and 40057 transitions. [2023-11-30 09:52:38,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 120 states, 119 states have (on average 336.61344537815125) internal successors, (40057), 119 states have internal predecessors, (40057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:52:38,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 120 states, 120 states have (on average 470.0) internal successors, (56400), 120 states have internal predecessors, (56400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:52:38,441 INFO L81 ComplementDD]: Finished complementDD. Result has 120 states, 120 states have (on average 470.0) internal successors, (56400), 120 states have internal predecessors, (56400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:52:38,442 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 400 predicate places. [2023-11-30 09:52:38,442 INFO L500 AbstractCegarLoop]: Abstraction has has 817 places, 5855 transitions, 159244 flow [2023-11-30 09:52:38,443 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 335.2105263157895) internal successors, (12738), 38 states have internal predecessors, (12738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:52:38,443 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:52:38,443 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:52:38,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-30 09:52:38,653 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:52:38,653 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:52:38,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:52:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1048040657, now seen corresponding path program 2 times [2023-11-30 09:52:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:52:38,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287506811] [2023-11-30 09:52:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:52:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:52:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:52:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:52:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:52:38,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287506811] [2023-11-30 09:52:38,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287506811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:52:38,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784631952] [2023-11-30 09:52:38,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:52:38,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:52:38,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:52:38,818 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:52:38,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-30 09:52:39,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 09:52:39,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:52:39,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:52:39,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:52:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:52:39,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:52:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:52:39,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784631952] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:52:39,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:52:39,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-30 09:52:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783574150] [2023-11-30 09:52:39,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:52:39,534 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-30 09:52:39,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:52:39,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-30 09:52:39,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-30 09:52:39,537 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 470 [2023-11-30 09:52:39,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 817 places, 5855 transitions, 159244 flow. Second operand has 13 states, 13 states have (on average 419.9230769230769) internal successors, (5459), 13 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:52:39,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:52:39,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 470 [2023-11-30 09:52:39,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:54:20,840 INFO L124 PetriNetUnfolderBase]: 22620/150692 cut-off events. [2023-11-30 09:54:20,841 INFO L125 PetriNetUnfolderBase]: For 5070003/5191495 co-relation queries the response was YES. [2023-11-30 09:54:22,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949783 conditions, 150692 events. 22620/150692 cut-off events. For 5070003/5191495 co-relation queries the response was YES. Maximal size of possible extension queue 1674. Compared 2399543 event pairs, 8237 based on Foata normal form. 2086/135899 useless extension candidates. Maximal degree in co-relation 378959. Up to 38706 conditions per place. [2023-11-30 09:54:24,207 INFO L140 encePairwiseOnDemand]: 466/470 looper letters, 1614 selfloop transitions, 465 changer transitions 174/7237 dead transitions. [2023-11-30 09:54:24,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 7237 transitions, 233220 flow [2023-11-30 09:54:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 09:54:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 09:54:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5128 transitions. [2023-11-30 09:54:24,210 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9092198581560283 [2023-11-30 09:54:24,210 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 5128 transitions. [2023-11-30 09:54:24,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 5128 transitions. [2023-11-30 09:54:24,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:54:24,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 5128 transitions. [2023-11-30 09:54:24,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 427.3333333333333) internal successors, (5128), 12 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:54:24,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:54:24,216 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:54:24,216 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 411 predicate places. [2023-11-30 09:54:24,216 INFO L500 AbstractCegarLoop]: Abstraction has has 828 places, 7237 transitions, 233220 flow [2023-11-30 09:54:24,217 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 419.9230769230769) internal successors, (5459), 13 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:54:24,217 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:54:24,217 INFO L232 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:54:24,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-30 09:54:24,417 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-30 09:54:24,418 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:54:24,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:54:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1121114186, now seen corresponding path program 1 times [2023-11-30 09:54:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:54:24,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709035525] [2023-11-30 09:54:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:54:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:54:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:54:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:54:25,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:54:25,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709035525] [2023-11-30 09:54:25,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709035525] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:54:25,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80117436] [2023-11-30 09:54:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:54:25,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:54:25,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:54:25,136 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:54:25,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-30 09:54:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:54:25,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-30 09:54:25,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:54:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:54:25,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:54:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:54:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80117436] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:54:26,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:54:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2023-11-30 09:54:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124102841] [2023-11-30 09:54:26,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:54:26,404 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-11-30 09:54:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:54:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-11-30 09:54:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2023-11-30 09:54:26,414 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 470 [2023-11-30 09:54:26,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 828 places, 7237 transitions, 233220 flow. Second operand has 72 states, 72 states have (on average 368.52777777777777) internal successors, (26534), 72 states have internal predecessors, (26534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:54:26,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:54:26,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 470 [2023-11-30 09:54:26,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:58:41,974 INFO L124 PetriNetUnfolderBase]: 24773/174818 cut-off events. [2023-11-30 09:58:41,974 INFO L125 PetriNetUnfolderBase]: For 5788413/5909891 co-relation queries the response was YES. [2023-11-30 09:58:44,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1268685 conditions, 174818 events. 24773/174818 cut-off events. For 5788413/5909891 co-relation queries the response was YES. Maximal size of possible extension queue 1738. Compared 2689019 event pairs, 8245 based on Foata normal form. 1426/157955 useless extension candidates. Maximal degree in co-relation 685788. Up to 59938 conditions per place. [2023-11-30 09:58:45,871 INFO L140 encePairwiseOnDemand]: 444/470 looper letters, 6708 selfloop transitions, 3990 changer transitions 174/11619 dead transitions. [2023-11-30 09:58:45,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 11619 transitions, 365292 flow [2023-11-30 09:58:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-11-30 09:58:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2023-11-30 09:58:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 39275 transitions. [2023-11-30 09:58:45,885 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8034983633387889 [2023-11-30 09:58:45,885 INFO L72 ComplementDD]: Start complementDD. Operand 104 states and 39275 transitions. [2023-11-30 09:58:45,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 39275 transitions. [2023-11-30 09:58:45,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:58:45,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 104 states and 39275 transitions. [2023-11-30 09:58:45,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 105 states, 104 states have (on average 377.6442307692308) internal successors, (39275), 104 states have internal predecessors, (39275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:58:45,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 105 states, 105 states have (on average 470.0) internal successors, (49350), 105 states have internal predecessors, (49350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:58:45,946 INFO L81 ComplementDD]: Finished complementDD. Result has 105 states, 105 states have (on average 470.0) internal successors, (49350), 105 states have internal predecessors, (49350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:58:45,946 INFO L307 CegarLoopForPetriNet]: 417 programPoint places, 514 predicate places. [2023-11-30 09:58:45,946 INFO L500 AbstractCegarLoop]: Abstraction has has 931 places, 11619 transitions, 365292 flow [2023-11-30 09:58:45,949 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 368.52777777777777) internal successors, (26534), 72 states have internal predecessors, (26534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:58:45,949 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:58:45,949 INFO L232 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:58:45,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-30 09:58:46,155 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-30 09:58:46,156 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-30 09:58:46,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:58:46,156 INFO L85 PathProgramCache]: Analyzing trace with hash -489532965, now seen corresponding path program 3 times [2023-11-30 09:58:46,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:58:46,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956846227] [2023-11-30 09:58:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:58:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:58:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:58:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:58:46,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:58:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956846227] [2023-11-30 09:58:46,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956846227] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:58:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609897911] [2023-11-30 09:58:46,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 09:58:46,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:58:46,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:58:46,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:58:46,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-30 09:58:46,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-30 09:58:46,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:58:46,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-30 09:58:46,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:58:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 110 proven. 1 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-30 09:58:47,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:58:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-30 09:58:47,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609897911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:58:47,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:58:47,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 25 [2023-11-30 09:58:47,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064836753] [2023-11-30 09:58:47,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:58:47,366 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-30 09:58:47,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:58:47,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-30 09:58:47,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-11-30 09:58:47,370 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 470 [2023-11-30 09:58:47,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 11619 transitions, 365292 flow. Second operand has 26 states, 26 states have (on average 339.7307692307692) internal successors, (8833), 26 states have internal predecessors, (8833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:58:47,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:58:47,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 470 [2023-11-30 09:58:47,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 10:01:07,843 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 10:01:07,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 10:01:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-30 10:01:08,791 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-11-30 10:01:08,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-30 10:01:08,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-30 10:01:08,997 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-30 10:01:08,997 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-11-30 10:01:08,998 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-11-30 10:01:08,999 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-11-30 10:01:09,000 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-11-30 10:01:09,001 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:01:09,004 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 10:01:09,004 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 10:01:09,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 10:01:09 BasicIcfg [2023-11-30 10:01:09,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 10:01:09,007 INFO L158 Benchmark]: Toolchain (without parser) took 796406.81ms. Allocated memory was 396.4MB in the beginning and 10.9GB in the end (delta: 10.5GB). Free memory was 339.4MB in the beginning and 1.3GB in the end (delta: -956.9MB). Peak memory consumption was 10.5GB. Max. memory is 16.0GB. [2023-11-30 10:01:09,007 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 396.4MB. Free memory is still 344.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 10:01:09,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.93ms. Allocated memory is still 396.4MB. Free memory was 339.4MB in the beginning and 326.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 10:01:09,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.06ms. Allocated memory is still 396.4MB. Free memory was 326.0MB in the beginning and 322.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:01:09,007 INFO L158 Benchmark]: Boogie Preprocessor took 30.41ms. Allocated memory is still 396.4MB. Free memory was 322.7MB in the beginning and 319.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 10:01:09,007 INFO L158 Benchmark]: RCFGBuilder took 783.53ms. Allocated memory was 396.4MB in the beginning and 631.2MB in the end (delta: 234.9MB). Free memory was 319.7MB in the beginning and 530.3MB in the end (delta: -210.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. [2023-11-30 10:01:09,008 INFO L158 Benchmark]: TraceAbstraction took 795321.17ms. Allocated memory was 631.2MB in the beginning and 10.9GB in the end (delta: 10.3GB). Free memory was 530.3MB in the beginning and 1.3GB in the end (delta: -766.1MB). Peak memory consumption was 10.5GB. Max. memory is 16.0GB. [2023-11-30 10:01:09,022 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 396.4MB. Free memory is still 344.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 218.93ms. Allocated memory is still 396.4MB. Free memory was 339.4MB in the beginning and 326.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.06ms. Allocated memory is still 396.4MB. Free memory was 326.0MB in the beginning and 322.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.41ms. Allocated memory is still 396.4MB. Free memory was 322.7MB in the beginning and 319.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 783.53ms. Allocated memory was 396.4MB in the beginning and 631.2MB in the end (delta: 234.9MB). Free memory was 319.7MB in the beginning and 530.3MB in the end (delta: -210.5MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. * TraceAbstraction took 795321.17ms. Allocated memory was 631.2MB in the beginning and 10.9GB in the end (delta: 10.3GB). Free memory was 530.3MB in the beginning and 1.3GB in the end (delta: -766.1MB). Peak memory consumption was 10.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (26states, 334/470 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 569966 conditions, 82329 events (11842/82328 cut-off events. For 3327647/3417855 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 1289157 event pairs, 4357 based on Foata normal form. 2698/77434 useless extension candidates. Maximal degree in co-relation 247702. Up to 20368 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 528 locations, 39 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: 795.2s, OverallIterations: 27, TraceHistogramMax: 17, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 776.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11375 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11375 mSDsluCounter, 4777 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4048 mSDsCounter, 1678 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9727 IncrementalHoareTripleChecker+Invalid, 11405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1678 mSolverCounterUnsat, 729 mSDtfsCounter, 9727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7540 GetRequests, 6775 SyntacticMatches, 21 SemanticMatches, 744 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16723 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=365292occurred in iteration=26, InterpolantAutomatonStates: 560, 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: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 9689 NumberOfCodeBlocks, 9345 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 12562 ConstructedInterpolants, 0 QuantifiedInterpolants, 33198 SizeOfPredicates, 103 NumberOfNonLiveVariables, 8358 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 58 InterpolantComputations, 14 PerfectInterpolantSequences, 3315/10461 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown