/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:23:18,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:23:19,070 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-VariableLbe.epf [2023-08-27 11:23:19,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:23:19,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:23:19,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:23:19,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:23:19,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:23:19,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:23:19,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:23:19,112 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:23:19,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:23:19,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:23:19,113 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:23:19,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:23:19,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:23:19,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:23:19,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:23:19,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:23:19,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:23:19,115 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:23:19,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:23:19,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:23:19,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:23:19,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:23:19,117 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:23:19,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:23:19,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:23:19,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:23:19,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:23:19,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:23:19,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:23:19,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:23:19,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:23:19,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:23:19,119 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:23:19,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:23:19,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:23:19,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:23:19,452 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:23:19,454 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:23:19,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-08-27 11:23:20,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:23:20,861 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:23:20,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-08-27 11:23:20,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3448c3d42/de0f6166303340b68782ff4f5a09a47b/FLAG83c407304 [2023-08-27 11:23:20,905 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3448c3d42/de0f6166303340b68782ff4f5a09a47b [2023-08-27 11:23:20,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:23:20,911 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:23:20,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:23:20,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:23:20,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:23:20,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:23:20" (1/1) ... [2023-08-27 11:23:20,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f8e9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:20, skipping insertion in model container [2023-08-27 11:23:20,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:23:20" (1/1) ... [2023-08-27 11:23:20,973 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:23:21,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:23:21,326 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:23:21,353 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:23:21,355 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:23:21,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:23:21,414 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:23:21,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21 WrapperNode [2023-08-27 11:23:21,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:23:21,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:23:21,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:23:21,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:23:21,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,487 INFO L138 Inliner]: procedures = 172, calls = 38, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 228 [2023-08-27 11:23:21,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:23:21,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:23:21,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:23:21,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:23:21,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:23:21,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:23:21,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:23:21,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:23:21,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (1/1) ... [2023-08-27 11:23:21,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:23:21,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:23:21,578 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) [2023-08-27 11:23:21,601 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 [2023-08-27 11:23:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:23:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-27 11:23:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-27 11:23:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:23:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-27 11:23:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:23:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:23:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:23:21,618 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:23:21,783 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:23:21,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:23:22,115 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:23:22,122 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:23:22,123 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-27 11:23:22,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:23:22 BoogieIcfgContainer [2023-08-27 11:23:22,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:23:22,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:23:22,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:23:22,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:23:22,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:23:20" (1/3) ... [2023-08-27 11:23:22,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c033c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:23:22, skipping insertion in model container [2023-08-27 11:23:22,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:23:21" (2/3) ... [2023-08-27 11:23:22,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c033c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:23:22, skipping insertion in model container [2023-08-27 11:23:22,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:23:22" (3/3) ... [2023-08-27 11:23:22,132 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2023-08-27 11:23:22,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:23:22,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-27 11:23:22,148 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:23:22,234 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-27 11:23:22,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,422 INFO L124 PetriNetUnfolderBase]: 61/444 cut-off events. [2023-08-27 11:23:22,423 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:23:22,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 444 events. 61/444 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1957 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 236. Up to 8 conditions per place. [2023-08-27 11:23:22,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:23:22,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:22,509 INFO L124 PetriNetUnfolderBase]: 61/444 cut-off events. [2023-08-27 11:23:22,509 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:23:22,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 444 events. 61/444 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1957 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 236. Up to 8 conditions per place. [2023-08-27 11:23:22,532 INFO L119 LiptonReduction]: Number of co-enabled transitions 25608 [2023-08-27 11:23:26,788 INFO L134 LiptonReduction]: Checked pairs total: 47316 [2023-08-27 11:23:26,789 INFO L136 LiptonReduction]: Total number of compositions: 202 [2023-08-27 11:23:26,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:23:26,806 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@569c98fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:23:26,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-27 11:23:26,810 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:23:26,810 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 11:23:26,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:23:26,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:26,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:23:26,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 11:23:26,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 30359086, now seen corresponding path program 1 times [2023-08-27 11:23:26,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:26,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802336424] [2023-08-27 11:23:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:26,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:27,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:27,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802336424] [2023-08-27 11:23:27,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802336424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:23:27,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:23:27,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 11:23:27,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103673330] [2023-08-27 11:23:27,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:23:27,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:23:27,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:27,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:23:27,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:23:27,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 446 [2023-08-27 11:23:27,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:27,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:27,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 446 [2023-08-27 11:23:27,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:23:28,380 INFO L124 PetriNetUnfolderBase]: 8753/14254 cut-off events. [2023-08-27 11:23:28,381 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-08-27 11:23:28,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27955 conditions, 14254 events. 8753/14254 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 97331 event pairs, 4011 based on Foata normal form. 1316/10177 useless extension candidates. Maximal degree in co-relation 26771. Up to 13506 conditions per place. [2023-08-27 11:23:28,466 INFO L140 encePairwiseOnDemand]: 420/446 looper letters, 83 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-27 11:23:28,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 95 transitions, 382 flow [2023-08-27 11:23:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:23:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:23:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2023-08-27 11:23:28,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5373692077727952 [2023-08-27 11:23:28,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 719 transitions. [2023-08-27 11:23:28,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 719 transitions. [2023-08-27 11:23:28,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:23:28,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 719 transitions. [2023-08-27 11:23:28,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:28,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 446.0) internal successors, (1784), 4 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:28,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 446.0) internal successors, (1784), 4 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:28,498 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 218 flow. Second operand 3 states and 719 transitions. [2023-08-27 11:23:28,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 95 transitions, 382 flow [2023-08-27 11:23:28,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 11:23:28,506 INFO L231 Difference]: Finished difference. Result has 77 places, 75 transitions, 180 flow [2023-08-27 11:23:28,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=446, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2023-08-27 11:23:28,511 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2023-08-27 11:23:28,512 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 180 flow [2023-08-27 11:23:28,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:28,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:28,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:23:28,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:23:28,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr4ASSERT_VIOLATIONASSERT === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 11:23:28,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1809878830, now seen corresponding path program 1 times [2023-08-27 11:23:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:28,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942548422] [2023-08-27 11:23:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:28,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:28,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942548422] [2023-08-27 11:23:28,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942548422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:23:28,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:23:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 11:23:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95647922] [2023-08-27 11:23:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:23:28,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:23:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:28,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:23:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:23:28,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 446 [2023-08-27 11:23:28,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 75 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:28,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:28,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 446 [2023-08-27 11:23:28,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:23:29,716 INFO L124 PetriNetUnfolderBase]: 8332/13830 cut-off events. [2023-08-27 11:23:29,716 INFO L125 PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES. [2023-08-27 11:23:29,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27262 conditions, 13830 events. 8332/13830 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 94581 event pairs, 3141 based on Foata normal form. 0/9342 useless extension candidates. Maximal degree in co-relation 25896. Up to 9924 conditions per place. [2023-08-27 11:23:29,803 INFO L140 encePairwiseOnDemand]: 436/446 looper letters, 106 selfloop transitions, 3 changer transitions 0/118 dead transitions. [2023-08-27 11:23:29,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 118 transitions, 504 flow [2023-08-27 11:23:29,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:23:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:23:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2023-08-27 11:23:29,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284005979073244 [2023-08-27 11:23:29,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2023-08-27 11:23:29,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2023-08-27 11:23:29,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:23:29,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2023-08-27 11:23:29,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:29,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 446.0) internal successors, (1784), 4 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:29,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 446.0) internal successors, (1784), 4 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:29,814 INFO L175 Difference]: Start difference. First operand has 77 places, 75 transitions, 180 flow. Second operand 3 states and 707 transitions. [2023-08-27 11:23:29,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 118 transitions, 504 flow [2023-08-27 11:23:29,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 118 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 11:23:29,820 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 207 flow [2023-08-27 11:23:29,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=446, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2023-08-27 11:23:29,821 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 2 predicate places. [2023-08-27 11:23:29,821 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 207 flow [2023-08-27 11:23:29,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:29,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:29,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:23:29,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:23:29,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 11:23:29,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:29,823 INFO L85 PathProgramCache]: Analyzing trace with hash -263843459, now seen corresponding path program 1 times [2023-08-27 11:23:29,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:29,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878901444] [2023-08-27 11:23:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:29,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:29,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:29,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878901444] [2023-08-27 11:23:29,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878901444] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 11:23:29,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398795103] [2023-08-27 11:23:29,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:29,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 11:23:29,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:23:29,893 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) [2023-08-27 11:23:29,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 11:23:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:30,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-27 11:23:30,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 11:23:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:30,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 11:23:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398795103] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 11:23:30,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 11:23:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-27 11:23:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105046061] [2023-08-27 11:23:30,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 11:23:30,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 11:23:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:30,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 11:23:30,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 11:23:30,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 446 [2023-08-27 11:23:30,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 202.42857142857142) internal successors, (1417), 7 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:30,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 446 [2023-08-27 11:23:30,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:23:30,124 INFO L124 PetriNetUnfolderBase]: 34/105 cut-off events. [2023-08-27 11:23:30,125 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-27 11:23:30,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 105 events. 34/105 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 316 event pairs, 10 based on Foata normal form. 18/114 useless extension candidates. Maximal degree in co-relation 230. Up to 70 conditions per place. [2023-08-27 11:23:30,126 INFO L140 encePairwiseOnDemand]: 443/446 looper letters, 19 selfloop transitions, 2 changer transitions 17/41 dead transitions. [2023-08-27 11:23:30,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 169 flow [2023-08-27 11:23:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:23:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:23:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 838 transitions. [2023-08-27 11:23:30,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697309417040359 [2023-08-27 11:23:30,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 838 transitions. [2023-08-27 11:23:30,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 838 transitions. [2023-08-27 11:23:30,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:23:30,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 838 transitions. [2023-08-27 11:23:30,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 209.5) internal successors, (838), 4 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 446.0) internal successors, (2230), 5 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,137 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 446.0) internal successors, (2230), 5 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,137 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 207 flow. Second operand 4 states and 838 transitions. [2023-08-27 11:23:30,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 169 flow [2023-08-27 11:23:30,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 161 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 11:23:30,139 INFO L231 Difference]: Finished difference. Result has 30 places, 15 transitions, 39 flow [2023-08-27 11:23:30,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=446, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=39, PETRI_PLACES=30, PETRI_TRANSITIONS=15} [2023-08-27 11:23:30,140 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -46 predicate places. [2023-08-27 11:23:30,140 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 15 transitions, 39 flow [2023-08-27 11:23:30,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 202.42857142857142) internal successors, (1417), 7 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:30,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:23:30,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-27 11:23:30,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 11:23:30,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 11:23:30,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:30,349 INFO L85 PathProgramCache]: Analyzing trace with hash -877051192, now seen corresponding path program 1 times [2023-08-27 11:23:30,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:30,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389423555] [2023-08-27 11:23:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:30,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:30,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389423555] [2023-08-27 11:23:30,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389423555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:23:30,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:23:30,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:23:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527268635] [2023-08-27 11:23:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:23:30,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:23:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:23:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:23:30,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 446 [2023-08-27 11:23:30,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 15 transitions, 39 flow. Second operand has 5 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:30,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 446 [2023-08-27 11:23:30,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:23:30,524 INFO L124 PetriNetUnfolderBase]: 16/50 cut-off events. [2023-08-27 11:23:30,524 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:23:30,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 50 events. 16/50 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 6 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 109. Up to 20 conditions per place. [2023-08-27 11:23:30,525 INFO L140 encePairwiseOnDemand]: 441/446 looper letters, 14 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-08-27 11:23:30,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 91 flow [2023-08-27 11:23:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:23:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:23:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2023-08-27 11:23:30,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4353512705530643 [2023-08-27 11:23:30,529 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2023-08-27 11:23:30,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2023-08-27 11:23:30,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:23:30,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2023-08-27 11:23:30,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 446.0) internal successors, (3122), 7 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 446.0) internal successors, (3122), 7 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,539 INFO L175 Difference]: Start difference. First operand has 30 places, 15 transitions, 39 flow. Second operand 6 states and 1165 transitions. [2023-08-27 11:23:30,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 91 flow [2023-08-27 11:23:30,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 11:23:30,541 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 42 flow [2023-08-27 11:23:30,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=446, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2023-08-27 11:23:30,541 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -52 predicate places. [2023-08-27 11:23:30,542 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 42 flow [2023-08-27 11:23:30,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:30,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:23:30,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:23:30,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-08-27 11:23:30,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash -877051124, now seen corresponding path program 1 times [2023-08-27 11:23:30,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:30,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353008720] [2023-08-27 11:23:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:30,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:30,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353008720] [2023-08-27 11:23:30,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353008720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:23:30,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:23:30,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:23:30,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021432518] [2023-08-27 11:23:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:23:30,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:23:30,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:23:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:23:30,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 446 [2023-08-27 11:23:30,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 42 flow. Second operand has 5 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:30,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 446 [2023-08-27 11:23:30,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:23:30,643 INFO L124 PetriNetUnfolderBase]: 14/45 cut-off events. [2023-08-27 11:23:30,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:23:30,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 45 events. 14/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 6 based on Foata normal form. 3/48 useless extension candidates. Maximal degree in co-relation 107. Up to 20 conditions per place. [2023-08-27 11:23:30,644 INFO L140 encePairwiseOnDemand]: 441/446 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-27 11:23:30,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 89 flow [2023-08-27 11:23:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:23:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:23:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2023-08-27 11:23:30,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349775784753363 [2023-08-27 11:23:30,648 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2023-08-27 11:23:30,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2023-08-27 11:23:30,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:23:30,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2023-08-27 11:23:30,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 446.0) internal successors, (3122), 7 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 446.0) internal successors, (3122), 7 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,658 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 42 flow. Second operand 6 states and 1164 transitions. [2023-08-27 11:23:30,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 89 flow [2023-08-27 11:23:30,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 82 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 11:23:30,658 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-08-27 11:23:30,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=446, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-08-27 11:23:30,659 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -52 predicate places. [2023-08-27 11:23:30,660 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-08-27 11:23:30,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:30,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr4ASSERT_VIOLATIONASSERT (27 of 28 remaining) [2023-08-27 11:23:30,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-08-27 11:23:30,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-08-27 11:23:30,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-08-27 11:23:30,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-08-27 11:23:30,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-08-27 11:23:30,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-08-27 11:23:30,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-08-27 11:23:30,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-08-27 11:23:30,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-08-27 11:23:30,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONASSERT (17 of 28 remaining) [2023-08-27 11:23:30,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-08-27 11:23:30,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-08-27 11:23:30,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-08-27 11:23:30,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONASSERT (13 of 28 remaining) [2023-08-27 11:23:30,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr4ASSERT_VIOLATIONASSERT (8 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-08-27 11:23:30,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-08-27 11:23:30,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-08-27 11:23:30,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-08-27 11:23:30,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-08-27 11:23:30,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-08-27 11:23:30,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-08-27 11:23:30,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-08-27 11:23:30,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:23:30,669 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-27 11:23:30,671 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-27 11:23:30,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,728 INFO L124 PetriNetUnfolderBase]: 61/444 cut-off events. [2023-08-27 11:23:30,728 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:23:30,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 444 events. 61/444 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1957 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 236. Up to 8 conditions per place. [2023-08-27 11:23:30,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,735 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:23:30,735 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,739 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 244 transitions, 510 flow [2023-08-27 11:23:30,789 INFO L124 PetriNetUnfolderBase]: 61/444 cut-off events. [2023-08-27 11:23:30,789 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 11:23:30,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 444 events. 61/444 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1957 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 236. Up to 8 conditions per place. [2023-08-27 11:23:30,809 INFO L119 LiptonReduction]: Number of co-enabled transitions 25608 [2023-08-27 11:23:34,561 INFO L134 LiptonReduction]: Checked pairs total: 52339 [2023-08-27 11:23:34,561 INFO L136 LiptonReduction]: Total number of compositions: 200 [2023-08-27 11:23:34,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 11:23:34,564 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@569c98fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:23:34,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-27 11:23:34,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:23:34,566 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2023-08-27 11:23:34,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:23:34,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:34,567 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-27 11:23:34,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 11:23:34,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 719637196, now seen corresponding path program 1 times [2023-08-27 11:23:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:34,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573262611] [2023-08-27 11:23:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:34,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:23:34,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 11:23:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:23:34,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 11:23:34,614 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 11:23:34,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-27 11:23:34,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-27 11:23:34,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 11:23:34,615 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 11:23:34,615 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (2/2) [2023-08-27 11:23:34,616 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 11:23:34,616 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-27 11:23:34,682 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-27 11:23:34,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:34,874 INFO L124 PetriNetUnfolderBase]: 205/1338 cut-off events. [2023-08-27 11:23:34,875 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 11:23:34,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1338 events. 205/1338 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8271 event pairs, 1 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 803. Up to 32 conditions per place. [2023-08-27 11:23:34,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:34,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:34,923 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:23:34,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:34,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:34,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 382 transitions, 812 flow [2023-08-27 11:23:35,116 INFO L124 PetriNetUnfolderBase]: 205/1338 cut-off events. [2023-08-27 11:23:35,117 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 11:23:35,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1338 events. 205/1338 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 8271 event pairs, 1 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 803. Up to 32 conditions per place. [2023-08-27 11:23:35,259 INFO L119 LiptonReduction]: Number of co-enabled transitions 88704 [2023-08-27 11:23:39,671 INFO L134 LiptonReduction]: Checked pairs total: 212577 [2023-08-27 11:23:39,671 INFO L136 LiptonReduction]: Total number of compositions: 298 [2023-08-27 11:23:39,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:23:39,673 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@569c98fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:23:39,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-27 11:23:39,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:23:39,676 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-27 11:23:39,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:23:39,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:23:39,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 11:23:39,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1_funErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2023-08-27 11:23:39,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:23:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1910291899, now seen corresponding path program 1 times [2023-08-27 11:23:39,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:23:39,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903933071] [2023-08-27 11:23:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:23:39,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:23:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:23:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:23:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:23:39,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903933071] [2023-08-27 11:23:39,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903933071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:23:39,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:23:39,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 11:23:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329931006] [2023-08-27 11:23:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:23:39,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:23:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:23:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:23:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:23:39,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 680 [2023-08-27 11:23:39,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 179 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:23:39,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:23:39,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 680 [2023-08-27 11:23:39,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand