/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 INSUFFICIENT_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/weaver/chl-node-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:23:26,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:23:26,550 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 06:23:26,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:23:26,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:23:26,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:23:26,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:23:26,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:23:26,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:23:26,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:23:26,594 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:23:26,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:23:26,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:23:26,594 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:23:26,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:23:26,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:23:26,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:23:26,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:23:26,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:23:26,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:23:26,596 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:23:26,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:23:26,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:23:26,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:23:26,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:23:26,597 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:23:26,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:23:26,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:23:26,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:23:26,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:23:26,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:23:26,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:23:26,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:23:26,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:23:26,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:23:26,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:23:26,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:23:26,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:23:26,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:23:26,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:23:26,867 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:23:26,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2023-08-27 06:23:27,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:23:28,174 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:23:28,174 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2023-08-27 06:23:28,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6132f131/0072f50f9b8442dc907ba9b80c76b34b/FLAG0ffbe5774 [2023-08-27 06:23:28,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6132f131/0072f50f9b8442dc907ba9b80c76b34b [2023-08-27 06:23:28,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:23:28,193 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:23:28,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:23:28,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:23:28,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:23:28,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c60c2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28, skipping insertion in model container [2023-08-27 06:23:28,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:23:28,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:23:28,344 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:23:28,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:23:28,378 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:23:28,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28 WrapperNode [2023-08-27 06:23:28,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:23:28,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:23:28,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:23:28,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:23:28,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,420 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 505 [2023-08-27 06:23:28,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:23:28,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:23:28,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:23:28,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:23:28,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:23:28,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:23:28,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:23:28,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:23:28,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (1/1) ... [2023-08-27 06:23:28,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:23:28,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:23:28,488 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 06:23:28,493 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 06:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:23:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 06:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:23:28,514 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 06:23:28,606 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:23:28,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:23:29,034 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:23:29,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:23:29,042 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-27 06:23:29,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:23:29 BoogieIcfgContainer [2023-08-27 06:23:29,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:23:29,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:23:29,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:23:29,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:23:29,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:23:28" (1/3) ... [2023-08-27 06:23:29,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c23df50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:23:29, skipping insertion in model container [2023-08-27 06:23:29,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:28" (2/3) ... [2023-08-27 06:23:29,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c23df50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:23:29, skipping insertion in model container [2023-08-27 06:23:29,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:23:29" (3/3) ... [2023-08-27 06:23:29,050 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2023-08-27 06:23:29,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:23:29,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2023-08-27 06:23:29,062 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:23:29,162 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 06:23:29,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 623 transitions, 1270 flow [2023-08-27 06:23:29,438 INFO L124 PetriNetUnfolderBase]: 47/620 cut-off events. [2023-08-27 06:23:29,438 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:23:29,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 620 events. 47/620 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1067 event pairs, 0 based on Foata normal form. 0/530 useless extension candidates. Maximal degree in co-relation 523. Up to 2 conditions per place. [2023-08-27 06:23:29,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 623 transitions, 1270 flow [2023-08-27 06:23:29,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 572 places, 609 transitions, 1236 flow [2023-08-27 06:23:29,459 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:23:29,469 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 572 places, 609 transitions, 1236 flow [2023-08-27 06:23:29,472 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 572 places, 609 transitions, 1236 flow [2023-08-27 06:23:29,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 609 transitions, 1236 flow [2023-08-27 06:23:29,574 INFO L124 PetriNetUnfolderBase]: 47/609 cut-off events. [2023-08-27 06:23:29,574 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:23:29,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 609 events. 47/609 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1066 event pairs, 0 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 523. Up to 2 conditions per place. [2023-08-27 06:23:29,591 INFO L119 LiptonReduction]: Number of co-enabled transitions 34440 [2023-08-27 06:23:51,330 INFO L134 LiptonReduction]: Checked pairs total: 46663 [2023-08-27 06:23:51,330 INFO L136 LiptonReduction]: Total number of compositions: 793 [2023-08-27 06:23:51,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:23:51,357 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;@1748f6f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:23:51,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-27 06:23:51,358 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:23:51,358 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-27 06:23:51,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:23:51,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:51,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 06:23:51,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:51,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2484, now seen corresponding path program 1 times [2023-08-27 06:23:51,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041087577] [2023-08-27 06:23:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:51,435 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 06:23:51,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:51,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041087577] [2023-08-27 06:23:51,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041087577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:51,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:51,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 06:23:51,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442391614] [2023-08-27 06:23:51,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:51,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 06:23:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:51,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 06:23:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 06:23:51,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 1416 [2023-08-27 06:23:51,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 587.5) internal successors, (1175), 2 states have internal predecessors, (1175), 0 states have call successors, (0), 0 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 06:23:51,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:51,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 1416 [2023-08-27 06:23:51,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:52,199 INFO L124 PetriNetUnfolderBase]: 4319/6210 cut-off events. [2023-08-27 06:23:52,200 INFO L125 PetriNetUnfolderBase]: For 325/325 co-relation queries the response was YES. [2023-08-27 06:23:52,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12764 conditions, 6210 events. 4319/6210 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30001 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 11792. Up to 6211 conditions per place. [2023-08-27 06:23:52,221 INFO L140 encePairwiseOnDemand]: 1408/1416 looper letters, 75 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2023-08-27 06:23:52,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 318 flow [2023-08-27 06:23:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 06:23:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 06:23:52,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1257 transitions. [2023-08-27 06:23:52,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4438559322033898 [2023-08-27 06:23:52,236 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1257 transitions. [2023-08-27 06:23:52,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1257 transitions. [2023-08-27 06:23:52,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:52,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1257 transitions. [2023-08-27 06:23:52,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 628.5) internal successors, (1257), 2 states have internal predecessors, (1257), 0 states have call successors, (0), 0 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 06:23:52,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1416.0) internal successors, (4248), 3 states have internal predecessors, (4248), 0 states have call successors, (0), 0 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 06:23:52,253 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1416.0) internal successors, (4248), 3 states have internal predecessors, (4248), 0 states have call successors, (0), 0 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 06:23:52,255 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 184 flow. Second operand 2 states and 1257 transitions. [2023-08-27 06:23:52,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 318 flow [2023-08-27 06:23:52,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 06:23:52,261 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 156 flow [2023-08-27 06:23:52,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2023-08-27 06:23:52,265 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-27 06:23:52,265 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 156 flow [2023-08-27 06:23:52,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 587.5) internal successors, (1175), 2 states have internal predecessors, (1175), 0 states have call successors, (0), 0 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 06:23:52,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:52,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:23:52,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:23:52,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:52,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 79239, now seen corresponding path program 1 times [2023-08-27 06:23:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:52,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168977683] [2023-08-27 06:23:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:52,425 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 06:23:52,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:52,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168977683] [2023-08-27 06:23:52,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168977683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:52,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:52,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:52,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769573395] [2023-08-27 06:23:52,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:52,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:52,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:52,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:52,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:52,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 06:23:52,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:52,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:52,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:53,035 INFO L124 PetriNetUnfolderBase]: 4319/6208 cut-off events. [2023-08-27 06:23:53,036 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:23:53,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12552 conditions, 6208 events. 4319/6208 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30014 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12549. Up to 6208 conditions per place. [2023-08-27 06:23:53,055 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 72 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-27 06:23:53,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 298 flow [2023-08-27 06:23:53,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:53,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-08-27 06:23:53,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180790960451977 [2023-08-27 06:23:53,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-08-27 06:23:53,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-08-27 06:23:53,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:53,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-08-27 06:23:53,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 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 06:23:53,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:53,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:53,069 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 156 flow. Second operand 3 states and 1776 transitions. [2023-08-27 06:23:53,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 298 flow [2023-08-27 06:23:53,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 73 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 06:23:53,070 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 154 flow [2023-08-27 06:23:53,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2023-08-27 06:23:53,071 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-27 06:23:53,071 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 154 flow [2023-08-27 06:23:53,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 06:23:53,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:53,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:23:53,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:23:53,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:53,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash 79240, now seen corresponding path program 1 times [2023-08-27 06:23:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:53,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618128940] [2023-08-27 06:23:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:53,116 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 06:23:53,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:53,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618128940] [2023-08-27 06:23:53,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618128940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:53,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:53,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:53,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711264591] [2023-08-27 06:23:53,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:53,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:53,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:53,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:53,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:53,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 06:23:53,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:53,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:53,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:53,690 INFO L124 PetriNetUnfolderBase]: 4319/6206 cut-off events. [2023-08-27 06:23:53,690 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:23:53,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12550 conditions, 6206 events. 4319/6206 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30018 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12546. Up to 6206 conditions per place. [2023-08-27 06:23:53,708 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-08-27 06:23:53,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 71 transitions, 292 flow [2023-08-27 06:23:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1774 transitions. [2023-08-27 06:23:53,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.417608286252354 [2023-08-27 06:23:53,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1774 transitions. [2023-08-27 06:23:53,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1774 transitions. [2023-08-27 06:23:53,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:53,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1774 transitions. [2023-08-27 06:23:53,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 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 06:23:53,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:53,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:53,722 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 154 flow. Second operand 3 states and 1774 transitions. [2023-08-27 06:23:53,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 71 transitions, 292 flow [2023-08-27 06:23:53,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 71 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:53,723 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 151 flow [2023-08-27 06:23:53,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2023-08-27 06:23:53,724 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -14 predicate places. [2023-08-27 06:23:53,724 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 151 flow [2023-08-27 06:23:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 06:23:53,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:53,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:23:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:23:53,725 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:53,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:53,725 INFO L85 PathProgramCache]: Analyzing trace with hash 79276, now seen corresponding path program 1 times [2023-08-27 06:23:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259414316] [2023-08-27 06:23:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:53,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:53,778 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 06:23:53,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:53,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259414316] [2023-08-27 06:23:53,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259414316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:53,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:53,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:53,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608076947] [2023-08-27 06:23:53,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:53,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:53,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:53,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-27 06:23:53,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 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 06:23:53,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:53,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-27 06:23:53,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:54,367 INFO L124 PetriNetUnfolderBase]: 4319/6203 cut-off events. [2023-08-27 06:23:54,367 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:23:54,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12545 conditions, 6203 events. 4319/6203 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30001 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12541. Up to 6195 conditions per place. [2023-08-27 06:23:54,385 INFO L140 encePairwiseOnDemand]: 1407/1416 looper letters, 62 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2023-08-27 06:23:54,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 68 transitions, 281 flow [2023-08-27 06:23:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-08-27 06:23:54,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143126177024482 [2023-08-27 06:23:54,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-08-27 06:23:54,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-08-27 06:23:54,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:54,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-08-27 06:23:54,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 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 06:23:54,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:54,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:54,399 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 151 flow. Second operand 3 states and 1760 transitions. [2023-08-27 06:23:54,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 68 transitions, 281 flow [2023-08-27 06:23:54,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:54,402 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 156 flow [2023-08-27 06:23:54,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-27 06:23:54,404 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -16 predicate places. [2023-08-27 06:23:54,404 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 156 flow [2023-08-27 06:23:54,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 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 06:23:54,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:54,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-27 06:23:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:23:54,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:54,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash 79277, now seen corresponding path program 1 times [2023-08-27 06:23:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165777684] [2023-08-27 06:23:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:54,470 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 06:23:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165777684] [2023-08-27 06:23:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165777684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:54,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:54,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:54,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414311498] [2023-08-27 06:23:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:54,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:54,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-27 06:23:54,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 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 06:23:54,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:54,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-27 06:23:54,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:55,106 INFO L124 PetriNetUnfolderBase]: 4326/6213 cut-off events. [2023-08-27 06:23:55,106 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:23:55,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12576 conditions, 6213 events. 4326/6213 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 29995 event pairs, 3825 based on Foata normal form. 0/3349 useless extension candidates. Maximal degree in co-relation 12572. Up to 6209 conditions per place. [2023-08-27 06:23:55,127 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 67 selfloop transitions, 11 changer transitions 0/78 dead transitions. [2023-08-27 06:23:55,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 78 transitions, 342 flow [2023-08-27 06:23:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1770 transitions. [2023-08-27 06:23:55,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-08-27 06:23:55,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1770 transitions. [2023-08-27 06:23:55,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1770 transitions. [2023-08-27 06:23:55,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:55,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1770 transitions. [2023-08-27 06:23:55,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 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 06:23:55,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:55,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:55,140 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 156 flow. Second operand 3 states and 1770 transitions. [2023-08-27 06:23:55,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 78 transitions, 342 flow [2023-08-27 06:23:55,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 78 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:23:55,141 INFO L231 Difference]: Finished difference. Result has 70 places, 78 transitions, 234 flow [2023-08-27 06:23:55,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=70, PETRI_TRANSITIONS=78} [2023-08-27 06:23:55,144 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -14 predicate places. [2023-08-27 06:23:55,144 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 78 transitions, 234 flow [2023-08-27 06:23:55,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 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 06:23:55,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:55,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:23:55,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:23:55,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:55,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2461162, now seen corresponding path program 1 times [2023-08-27 06:23:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:55,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651771068] [2023-08-27 06:23:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:55,203 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 06:23:55,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:55,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651771068] [2023-08-27 06:23:55,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651771068] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:23:55,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082532835] [2023-08-27 06:23:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:55,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:23:55,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:23:55,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 06:23:55,239 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 06:23:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:55,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 06:23:55,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:23:55,358 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 06:23:55,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:23:55,375 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 06:23:55,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082532835] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:23:55,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:23:55,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 06:23:55,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088554604] [2023-08-27 06:23:55,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:23:55,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 06:23:55,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:55,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 06:23:55,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 06:23:55,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-27 06:23:55,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 78 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 564.1428571428571) internal successors, (3949), 7 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:23:55,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:55,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-27 06:23:55,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:56,064 INFO L124 PetriNetUnfolderBase]: 4347/6243 cut-off events. [2023-08-27 06:23:56,064 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:23:56,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12697 conditions, 6243 events. 4347/6243 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30065 event pairs, 3825 based on Foata normal form. 0/3364 useless extension candidates. Maximal degree in co-relation 12692. Up to 6224 conditions per place. [2023-08-27 06:23:56,080 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 67 selfloop transitions, 41 changer transitions 0/108 dead transitions. [2023-08-27 06:23:56,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 108 transitions, 582 flow [2023-08-27 06:23:56,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3495 transitions. [2023-08-27 06:23:56,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4113700564971751 [2023-08-27 06:23:56,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3495 transitions. [2023-08-27 06:23:56,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3495 transitions. [2023-08-27 06:23:56,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:56,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3495 transitions. [2023-08-27 06:23:56,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 582.5) internal successors, (3495), 6 states have internal predecessors, (3495), 0 states have call successors, (0), 0 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 06:23:56,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1416.0) internal successors, (9912), 7 states have internal predecessors, (9912), 0 states have call successors, (0), 0 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 06:23:56,108 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1416.0) internal successors, (9912), 7 states have internal predecessors, (9912), 0 states have call successors, (0), 0 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 06:23:56,109 INFO L175 Difference]: Start difference. First operand has 70 places, 78 transitions, 234 flow. Second operand 6 states and 3495 transitions. [2023-08-27 06:23:56,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 108 transitions, 582 flow [2023-08-27 06:23:56,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 108 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:23:56,111 INFO L231 Difference]: Finished difference. Result has 76 places, 108 transitions, 487 flow [2023-08-27 06:23:56,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=76, PETRI_TRANSITIONS=108} [2023-08-27 06:23:56,111 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-27 06:23:56,111 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 108 transitions, 487 flow [2023-08-27 06:23:56,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 564.1428571428571) internal successors, (3949), 7 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:23:56,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:56,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 06:23:56,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-27 06:23:56,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-27 06:23:56,316 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:56,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:56,317 INFO L85 PathProgramCache]: Analyzing trace with hash 76447894, now seen corresponding path program 1 times [2023-08-27 06:23:56,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:56,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22092820] [2023-08-27 06:23:56,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:56,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:23:56,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:56,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22092820] [2023-08-27 06:23:56,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22092820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:56,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:56,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:56,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094928594] [2023-08-27 06:23:56,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:56,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:56,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:56,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:56,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:56,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 108 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:56,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:56,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:56,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:57,016 INFO L124 PetriNetUnfolderBase]: 4343/6237 cut-off events. [2023-08-27 06:23:57,016 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-27 06:23:57,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12746 conditions, 6237 events. 4343/6237 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30042 event pairs, 3825 based on Foata normal form. 0/3367 useless extension candidates. Maximal degree in co-relation 12738. Up to 6237 conditions per place. [2023-08-27 06:23:57,036 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 101 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2023-08-27 06:23:57,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 102 transitions, 656 flow [2023-08-27 06:23:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:57,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1769 transitions. [2023-08-27 06:23:57,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164312617702448 [2023-08-27 06:23:57,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1769 transitions. [2023-08-27 06:23:57,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1769 transitions. [2023-08-27 06:23:57,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:57,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1769 transitions. [2023-08-27 06:23:57,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 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 06:23:57,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:57,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:57,051 INFO L175 Difference]: Start difference. First operand has 76 places, 108 transitions, 487 flow. Second operand 3 states and 1769 transitions. [2023-08-27 06:23:57,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 102 transitions, 656 flow [2023-08-27 06:23:57,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 102 transitions, 598 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:57,054 INFO L231 Difference]: Finished difference. Result has 75 places, 102 transitions, 396 flow [2023-08-27 06:23:57,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=75, PETRI_TRANSITIONS=102} [2023-08-27 06:23:57,055 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2023-08-27 06:23:57,055 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 102 transitions, 396 flow [2023-08-27 06:23:57,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:57,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:57,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 06:23:57,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:23:57,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:57,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 76447895, now seen corresponding path program 1 times [2023-08-27 06:23:57,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:57,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711075722] [2023-08-27 06:23:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:57,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:23:57,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711075722] [2023-08-27 06:23:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711075722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:57,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477915081] [2023-08-27 06:23:57,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:57,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:57,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:57,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:57,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:57,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:57,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 102 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:57,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:57,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:57,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:57,656 INFO L124 PetriNetUnfolderBase]: 4339/6231 cut-off events. [2023-08-27 06:23:57,656 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:23:57,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12696 conditions, 6231 events. 4339/6231 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30029 event pairs, 3825 based on Foata normal form. 2/3370 useless extension candidates. Maximal degree in co-relation 12687. Up to 6231 conditions per place. [2023-08-27 06:23:57,673 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 95 selfloop transitions, 1 changer transitions 0/96 dead transitions. [2023-08-27 06:23:57,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 560 flow [2023-08-27 06:23:57,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1767 transitions. [2023-08-27 06:23:57,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4159604519774011 [2023-08-27 06:23:57,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1767 transitions. [2023-08-27 06:23:57,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1767 transitions. [2023-08-27 06:23:57,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:57,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1767 transitions. [2023-08-27 06:23:57,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 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 06:23:57,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:57,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:57,683 INFO L175 Difference]: Start difference. First operand has 75 places, 102 transitions, 396 flow. Second operand 3 states and 1767 transitions. [2023-08-27 06:23:57,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 560 flow [2023-08-27 06:23:57,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 96 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:57,684 INFO L231 Difference]: Finished difference. Result has 74 places, 96 transitions, 369 flow [2023-08-27 06:23:57,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=74, PETRI_TRANSITIONS=96} [2023-08-27 06:23:57,685 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-27 06:23:57,685 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 96 transitions, 369 flow [2023-08-27 06:23:57,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:57,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:57,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 06:23:57,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:23:57,686 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:57,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash 76451304, now seen corresponding path program 1 times [2023-08-27 06:23:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:57,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83630772] [2023-08-27 06:23:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:57,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:57,711 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 06:23:57,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:57,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83630772] [2023-08-27 06:23:57,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83630772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:57,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:57,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:57,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428140040] [2023-08-27 06:23:57,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:57,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:57,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:57,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:57,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:57,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:57,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 96 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:57,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:57,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:57,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:58,253 INFO L124 PetriNetUnfolderBase]: 4335/6226 cut-off events. [2023-08-27 06:23:58,253 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:23:58,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12677 conditions, 6226 events. 4335/6226 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30040 event pairs, 3825 based on Foata normal form. 0/3368 useless extension candidates. Maximal degree in co-relation 12668. Up to 6226 conditions per place. [2023-08-27 06:23:58,270 INFO L140 encePairwiseOnDemand]: 1414/1416 looper letters, 90 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-08-27 06:23:58,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 91 transitions, 525 flow [2023-08-27 06:23:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1765 transitions. [2023-08-27 06:23:58,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4154896421845574 [2023-08-27 06:23:58,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1765 transitions. [2023-08-27 06:23:58,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1765 transitions. [2023-08-27 06:23:58,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:58,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1765 transitions. [2023-08-27 06:23:58,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 0 states have call successors, (0), 0 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 06:23:58,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:58,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:58,280 INFO L175 Difference]: Start difference. First operand has 74 places, 96 transitions, 369 flow. Second operand 3 states and 1765 transitions. [2023-08-27 06:23:58,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 91 transitions, 525 flow [2023-08-27 06:23:58,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 91 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:58,282 INFO L231 Difference]: Finished difference. Result has 74 places, 91 transitions, 344 flow [2023-08-27 06:23:58,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=91} [2023-08-27 06:23:58,282 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-27 06:23:58,282 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 91 transitions, 344 flow [2023-08-27 06:23:58,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:58,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:58,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 06:23:58,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:23:58,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:58,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash 76451305, now seen corresponding path program 1 times [2023-08-27 06:23:58,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712982170] [2023-08-27 06:23:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:58,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:58,308 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 06:23:58,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712982170] [2023-08-27 06:23:58,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712982170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:58,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:58,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:23:58,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138706914] [2023-08-27 06:23:58,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:58,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:58,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:58,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:58,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:58,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-27 06:23:58,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 91 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:58,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:58,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-27 06:23:58,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:58,839 INFO L124 PetriNetUnfolderBase]: 4331/6221 cut-off events. [2023-08-27 06:23:58,839 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:23:58,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12658 conditions, 6221 events. 4331/6221 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30014 event pairs, 3825 based on Foata normal form. 0/3368 useless extension candidates. Maximal degree in co-relation 12649. Up to 6221 conditions per place. [2023-08-27 06:23:58,857 INFO L140 encePairwiseOnDemand]: 1414/1416 looper letters, 85 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-27 06:23:58,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 490 flow [2023-08-27 06:23:58,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1764 transitions. [2023-08-27 06:23:58,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4152542372881356 [2023-08-27 06:23:58,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1764 transitions. [2023-08-27 06:23:58,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1764 transitions. [2023-08-27 06:23:58,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:58,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1764 transitions. [2023-08-27 06:23:58,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:23:58,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:58,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:58,867 INFO L175 Difference]: Start difference. First operand has 74 places, 91 transitions, 344 flow. Second operand 3 states and 1764 transitions. [2023-08-27 06:23:58,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 490 flow [2023-08-27 06:23:58,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 86 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:58,869 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 319 flow [2023-08-27 06:23:58,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=74, PETRI_TRANSITIONS=86} [2023-08-27 06:23:58,869 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-27 06:23:58,870 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 319 flow [2023-08-27 06:23:58,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 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 06:23:58,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:58,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:23:58,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:23:58,870 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:58,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:58,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1924969485, now seen corresponding path program 1 times [2023-08-27 06:23:58,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:58,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938849377] [2023-08-27 06:23:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:58,902 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 06:23:58,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938849377] [2023-08-27 06:23:58,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938849377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:58,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:58,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:23:58,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942964424] [2023-08-27 06:23:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:58,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:58,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:58,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-27 06:23:58,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 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 06:23:58,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:58,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-27 06:23:58,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:59,584 INFO L124 PetriNetUnfolderBase]: 4334/6227 cut-off events. [2023-08-27 06:23:59,584 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:23:59,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12671 conditions, 6227 events. 4334/6227 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30063 event pairs, 3825 based on Foata normal form. 0/3371 useless extension candidates. Maximal degree in co-relation 12662. Up to 6219 conditions per place. [2023-08-27 06:23:59,603 INFO L140 encePairwiseOnDemand]: 1403/1416 looper letters, 81 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-27 06:23:59,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 515 flow [2023-08-27 06:23:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:23:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:23:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1763 transitions. [2023-08-27 06:23:59,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150188323917137 [2023-08-27 06:23:59,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1763 transitions. [2023-08-27 06:23:59,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1763 transitions. [2023-08-27 06:23:59,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:59,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1763 transitions. [2023-08-27 06:23:59,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 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 06:23:59,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:59,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:23:59,613 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 319 flow. Second operand 3 states and 1763 transitions. [2023-08-27 06:23:59,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 515 flow [2023-08-27 06:23:59,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 92 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:59,615 INFO L231 Difference]: Finished difference. Result has 77 places, 92 transitions, 398 flow [2023-08-27 06:23:59,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=92} [2023-08-27 06:23:59,616 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2023-08-27 06:23:59,616 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 92 transitions, 398 flow [2023-08-27 06:23:59,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 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 06:23:59,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:59,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 06:23:59,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:23:59,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:23:59,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash 455495527, now seen corresponding path program 1 times [2023-08-27 06:23:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319954230] [2023-08-27 06:23:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:23:59,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319954230] [2023-08-27 06:23:59,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319954230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:59,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:59,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 06:23:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061375628] [2023-08-27 06:23:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:59,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:23:59,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:59,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:23:59,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:23:59,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 1416 [2023-08-27 06:23:59,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 92 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 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 06:23:59,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:59,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 1416 [2023-08-27 06:23:59,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:00,235 INFO L124 PetriNetUnfolderBase]: 4333/6226 cut-off events. [2023-08-27 06:24:00,235 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-27 06:24:00,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12703 conditions, 6226 events. 4333/6226 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30025 event pairs, 3825 based on Foata normal form. 1/3377 useless extension candidates. Maximal degree in co-relation 12693. Up to 6226 conditions per place. [2023-08-27 06:24:00,252 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 89 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-08-27 06:24:00,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 91 transitions, 576 flow [2023-08-27 06:24:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:24:00,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:24:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2023-08-27 06:24:00,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4041902071563089 [2023-08-27 06:24:00,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1717 transitions. [2023-08-27 06:24:00,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1717 transitions. [2023-08-27 06:24:00,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:00,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1717 transitions. [2023-08-27 06:24:00,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:24:00,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:00,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:00,261 INFO L175 Difference]: Start difference. First operand has 77 places, 92 transitions, 398 flow. Second operand 3 states and 1717 transitions. [2023-08-27 06:24:00,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 91 transitions, 576 flow [2023-08-27 06:24:00,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 91 transitions, 554 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:24:00,263 INFO L231 Difference]: Finished difference. Result has 77 places, 91 transitions, 376 flow [2023-08-27 06:24:00,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=77, PETRI_TRANSITIONS=91} [2023-08-27 06:24:00,263 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2023-08-27 06:24:00,263 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 91 transitions, 376 flow [2023-08-27 06:24:00,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 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 06:24:00,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:00,264 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-27 06:24:00,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:24:00,264 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:00,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash 309583085, now seen corresponding path program 2 times [2023-08-27 06:24:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:00,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186016083] [2023-08-27 06:24:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:00,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:24:00,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:00,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186016083] [2023-08-27 06:24:00,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186016083] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:24:00,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327985502] [2023-08-27 06:24:00,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:24:00,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:00,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:24:00,333 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) [2023-08-27 06:24:00,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 06:24:00,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:24:00,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:24:00,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-27 06:24:00,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:24:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 06:24:00,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:24:00,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327985502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:00,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:24:00,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 06:24:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429827177] [2023-08-27 06:24:00,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:00,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:24:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:24:00,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 06:24:00,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1416 [2023-08-27 06:24:00,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 91 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 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 06:24:00,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:00,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1416 [2023-08-27 06:24:00,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:01,007 INFO L124 PetriNetUnfolderBase]: 4333/6223 cut-off events. [2023-08-27 06:24:01,007 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-08-27 06:24:01,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12676 conditions, 6223 events. 4333/6223 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30019 event pairs, 3825 based on Foata normal form. 3/3372 useless extension candidates. Maximal degree in co-relation 12666. Up to 6223 conditions per place. [2023-08-27 06:24:01,022 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 87 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-08-27 06:24:01,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 88 transitions, 522 flow [2023-08-27 06:24:01,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:24:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:24:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-08-27 06:24:01,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143126177024482 [2023-08-27 06:24:01,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-08-27 06:24:01,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-08-27 06:24:01,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:01,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-08-27 06:24:01,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 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 06:24:01,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:01,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:01,031 INFO L175 Difference]: Start difference. First operand has 77 places, 91 transitions, 376 flow. Second operand 3 states and 1760 transitions. [2023-08-27 06:24:01,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 88 transitions, 522 flow [2023-08-27 06:24:01,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 470 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-27 06:24:01,033 INFO L231 Difference]: Finished difference. Result has 71 places, 88 transitions, 296 flow [2023-08-27 06:24:01,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=71, PETRI_TRANSITIONS=88} [2023-08-27 06:24:01,033 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-27 06:24:01,034 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 88 transitions, 296 flow [2023-08-27 06:24:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 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 06:24:01,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:01,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:01,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-27 06:24:01,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-27 06:24:01,238 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:01,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1153057060, now seen corresponding path program 1 times [2023-08-27 06:24:01,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:01,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306344390] [2023-08-27 06:24:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:01,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306344390] [2023-08-27 06:24:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306344390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:01,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:24:01,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:24:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241427567] [2023-08-27 06:24:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:01,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:24:01,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:24:01,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:24:01,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 1416 [2023-08-27 06:24:01,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 88 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 532.75) internal successors, (2131), 4 states have internal predecessors, (2131), 0 states have call successors, (0), 0 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 06:24:01,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:01,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 1416 [2023-08-27 06:24:01,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:01,850 INFO L124 PetriNetUnfolderBase]: 4332/6222 cut-off events. [2023-08-27 06:24:01,851 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:24:01,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12642 conditions, 6222 events. 4332/6222 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30013 event pairs, 3825 based on Foata normal form. 0/3362 useless extension candidates. Maximal degree in co-relation 12636. Up to 6217 conditions per place. [2023-08-27 06:24:01,868 INFO L140 encePairwiseOnDemand]: 1411/1416 looper letters, 80 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2023-08-27 06:24:01,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 466 flow [2023-08-27 06:24:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:24:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:24:01,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2186 transitions. [2023-08-27 06:24:01,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3859463276836158 [2023-08-27 06:24:01,872 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2186 transitions. [2023-08-27 06:24:01,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2186 transitions. [2023-08-27 06:24:01,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:01,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2186 transitions. [2023-08-27 06:24:01,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 546.5) internal successors, (2186), 4 states have internal predecessors, (2186), 0 states have call successors, (0), 0 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 06:24:01,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:01,880 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:01,880 INFO L175 Difference]: Start difference. First operand has 71 places, 88 transitions, 296 flow. Second operand 4 states and 2186 transitions. [2023-08-27 06:24:01,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 466 flow [2023-08-27 06:24:01,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 465 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:24:01,881 INFO L231 Difference]: Finished difference. Result has 73 places, 87 transitions, 305 flow [2023-08-27 06:24:01,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=73, PETRI_TRANSITIONS=87} [2023-08-27 06:24:01,882 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-27 06:24:01,882 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 305 flow [2023-08-27 06:24:01,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 532.75) internal successors, (2131), 4 states have internal predecessors, (2131), 0 states have call successors, (0), 0 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 06:24:01,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:01,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:01,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 06:24:01,883 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:01,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1280792474, now seen corresponding path program 1 times [2023-08-27 06:24:01,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343047085] [2023-08-27 06:24:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 06:24:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343047085] [2023-08-27 06:24:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343047085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:01,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:24:01,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:24:01,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247763386] [2023-08-27 06:24:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:01,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:24:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:01,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:24:01,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:24:01,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 1416 [2023-08-27 06:24:01,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 533.0) internal successors, (2132), 4 states have internal predecessors, (2132), 0 states have call successors, (0), 0 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 06:24:01,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:01,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 1416 [2023-08-27 06:24:01,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:02,486 INFO L124 PetriNetUnfolderBase]: 4331/6221 cut-off events. [2023-08-27 06:24:02,486 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 06:24:02,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12645 conditions, 6221 events. 4331/6221 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 29994 event pairs, 3825 based on Foata normal form. 1/3366 useless extension candidates. Maximal degree in co-relation 12639. Up to 6216 conditions per place. [2023-08-27 06:24:02,503 INFO L140 encePairwiseOnDemand]: 1411/1416 looper letters, 79 selfloop transitions, 7 changer transitions 0/86 dead transitions. [2023-08-27 06:24:02,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 86 transitions, 471 flow [2023-08-27 06:24:02,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:24:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:24:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2186 transitions. [2023-08-27 06:24:02,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3859463276836158 [2023-08-27 06:24:02,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2186 transitions. [2023-08-27 06:24:02,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2186 transitions. [2023-08-27 06:24:02,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:02,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2186 transitions. [2023-08-27 06:24:02,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 546.5) internal successors, (2186), 4 states have internal predecessors, (2186), 0 states have call successors, (0), 0 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 06:24:02,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:02,514 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:02,514 INFO L175 Difference]: Start difference. First operand has 73 places, 87 transitions, 305 flow. Second operand 4 states and 2186 transitions. [2023-08-27 06:24:02,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 86 transitions, 471 flow [2023-08-27 06:24:02,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 86 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:24:02,515 INFO L231 Difference]: Finished difference. Result has 75 places, 86 transitions, 312 flow [2023-08-27 06:24:02,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=75, PETRI_TRANSITIONS=86} [2023-08-27 06:24:02,515 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2023-08-27 06:24:02,516 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 86 transitions, 312 flow [2023-08-27 06:24:02,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 533.0) internal successors, (2132), 4 states have internal predecessors, (2132), 0 states have call successors, (0), 0 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 06:24:02,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:02,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:02,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 06:24:02,516 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:02,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1045869786, now seen corresponding path program 1 times [2023-08-27 06:24:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809711630] [2023-08-27 06:24:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-27 06:24:02,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:02,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809711630] [2023-08-27 06:24:02,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809711630] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:24:02,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577378714] [2023-08-27 06:24:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:02,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:02,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:24:02,557 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) [2023-08-27 06:24:02,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 06:24:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:02,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-27 06:24:02,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:24:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:02,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:24:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:02,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577378714] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:24:02,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:24:02,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12 [2023-08-27 06:24:02,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43115455] [2023-08-27 06:24:02,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:24:02,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-27 06:24:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-27 06:24:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-27 06:24:02,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 1416 [2023-08-27 06:24:02,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 86 transitions, 312 flow. Second operand has 13 states, 13 states have (on average 499.84615384615387) internal successors, (6498), 13 states have internal predecessors, (6498), 0 states have call successors, (0), 0 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 06:24:02,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:02,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 1416 [2023-08-27 06:24:02,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:04,134 INFO L124 PetriNetUnfolderBase]: 8666/12444 cut-off events. [2023-08-27 06:24:04,135 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-08-27 06:24:04,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25289 conditions, 12444 events. 8666/12444 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 67172 event pairs, 7650 based on Foata normal form. 0/6733 useless extension candidates. Maximal degree in co-relation 25283. Up to 6209 conditions per place. [2023-08-27 06:24:04,172 INFO L140 encePairwiseOnDemand]: 1400/1416 looper letters, 134 selfloop transitions, 40 changer transitions 0/174 dead transitions. [2023-08-27 06:24:04,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 174 transitions, 958 flow [2023-08-27 06:24:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-27 06:24:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-27 06:24:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5628 transitions. [2023-08-27 06:24:04,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3613251155624037 [2023-08-27 06:24:04,181 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5628 transitions. [2023-08-27 06:24:04,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5628 transitions. [2023-08-27 06:24:04,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:04,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5628 transitions. [2023-08-27 06:24:04,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 511.6363636363636) internal successors, (5628), 11 states have internal predecessors, (5628), 0 states have call successors, (0), 0 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 06:24:04,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1416.0) internal successors, (16992), 12 states have internal predecessors, (16992), 0 states have call successors, (0), 0 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 06:24:04,202 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1416.0) internal successors, (16992), 12 states have internal predecessors, (16992), 0 states have call successors, (0), 0 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 06:24:04,202 INFO L175 Difference]: Start difference. First operand has 75 places, 86 transitions, 312 flow. Second operand 11 states and 5628 transitions. [2023-08-27 06:24:04,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 174 transitions, 958 flow [2023-08-27 06:24:04,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 928 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 06:24:04,205 INFO L231 Difference]: Finished difference. Result has 88 places, 112 transitions, 583 flow [2023-08-27 06:24:04,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=583, PETRI_PLACES=88, PETRI_TRANSITIONS=112} [2023-08-27 06:24:04,205 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 4 predicate places. [2023-08-27 06:24:04,205 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 112 transitions, 583 flow [2023-08-27 06:24:04,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 499.84615384615387) internal successors, (6498), 13 states have internal predecessors, (6498), 0 states have call successors, (0), 0 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 06:24:04,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:04,207 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:04,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-27 06:24:04,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:04,414 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:04,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash 52086648, now seen corresponding path program 1 times [2023-08-27 06:24:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:04,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971711896] [2023-08-27 06:24:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-27 06:24:04,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971711896] [2023-08-27 06:24:04,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971711896] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:24:04,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837441550] [2023-08-27 06:24:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:04,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:04,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:24:04,509 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) [2023-08-27 06:24:04,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 06:24:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:04,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-27 06:24:04,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:24:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:04,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:24:04,817 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:04,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837441550] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:24:04,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:24:04,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2023-08-27 06:24:04,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518335498] [2023-08-27 06:24:04,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:24:04,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-27 06:24:04,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-27 06:24:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-08-27 06:24:04,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 1416 [2023-08-27 06:24:04,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 112 transitions, 583 flow. Second operand has 18 states, 18 states have (on average 499.6111111111111) internal successors, (8993), 18 states have internal predecessors, (8993), 0 states have call successors, (0), 0 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 06:24:04,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:04,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 1416 [2023-08-27 06:24:04,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:06,825 INFO L124 PetriNetUnfolderBase]: 12989/18646 cut-off events. [2023-08-27 06:24:06,825 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2023-08-27 06:24:06,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37971 conditions, 18646 events. 12989/18646 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106868 event pairs, 11475 based on Foata normal form. 17/10118 useless extension candidates. Maximal degree in co-relation 37960. Up to 12386 conditions per place. [2023-08-27 06:24:06,894 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 125 selfloop transitions, 56 changer transitions 0/181 dead transitions. [2023-08-27 06:24:06,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 1198 flow [2023-08-27 06:24:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-27 06:24:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-27 06:24:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 7620 transitions. [2023-08-27 06:24:06,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3587570621468927 [2023-08-27 06:24:06,903 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 7620 transitions. [2023-08-27 06:24:06,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 7620 transitions. [2023-08-27 06:24:06,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:06,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 7620 transitions. [2023-08-27 06:24:06,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 508.0) internal successors, (7620), 15 states have internal predecessors, (7620), 0 states have call successors, (0), 0 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 06:24:06,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 1416.0) internal successors, (22656), 16 states have internal predecessors, (22656), 0 states have call successors, (0), 0 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 06:24:06,923 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 1416.0) internal successors, (22656), 16 states have internal predecessors, (22656), 0 states have call successors, (0), 0 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 06:24:06,923 INFO L175 Difference]: Start difference. First operand has 88 places, 112 transitions, 583 flow. Second operand 15 states and 7620 transitions. [2023-08-27 06:24:06,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 1198 flow [2023-08-27 06:24:06,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 181 transitions, 1134 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-27 06:24:06,926 INFO L231 Difference]: Finished difference. Result has 98 places, 122 transitions, 725 flow [2023-08-27 06:24:06,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=725, PETRI_PLACES=98, PETRI_TRANSITIONS=122} [2023-08-27 06:24:06,926 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 14 predicate places. [2023-08-27 06:24:06,927 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 122 transitions, 725 flow [2023-08-27 06:24:06,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 499.6111111111111) internal successors, (8993), 18 states have internal predecessors, (8993), 0 states have call successors, (0), 0 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 06:24:06,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:06,928 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:06,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 06:24:07,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-27 06:24:07,132 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:07,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:07,132 INFO L85 PathProgramCache]: Analyzing trace with hash 59916300, now seen corresponding path program 1 times [2023-08-27 06:24:07,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:07,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169632565] [2023-08-27 06:24:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-27 06:24:07,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:07,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169632565] [2023-08-27 06:24:07,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169632565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:07,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:24:07,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:24:07,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611895425] [2023-08-27 06:24:07,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:07,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:24:07,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:07,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:24:07,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:24:07,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-27 06:24:07,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 122 transitions, 725 flow. Second operand has 4 states, 4 states have (on average 536.5) internal successors, (2146), 4 states have internal predecessors, (2146), 0 states have call successors, (0), 0 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 06:24:07,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:07,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-27 06:24:07,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:08,881 INFO L124 PetriNetUnfolderBase]: 12986/18643 cut-off events. [2023-08-27 06:24:08,881 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2023-08-27 06:24:08,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37988 conditions, 18643 events. 12986/18643 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106866 event pairs, 11475 based on Foata normal form. 3/10104 useless extension candidates. Maximal degree in co-relation 37975. Up to 18631 conditions per place. [2023-08-27 06:24:08,987 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 103 selfloop transitions, 16 changer transitions 0/119 dead transitions. [2023-08-27 06:24:08,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 119 transitions, 938 flow [2023-08-27 06:24:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:24:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:24:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2194 transitions. [2023-08-27 06:24:08,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3873587570621469 [2023-08-27 06:24:08,990 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2194 transitions. [2023-08-27 06:24:08,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2194 transitions. [2023-08-27 06:24:08,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:08,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2194 transitions. [2023-08-27 06:24:08,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 548.5) internal successors, (2194), 4 states have internal predecessors, (2194), 0 states have call successors, (0), 0 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 06:24:08,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:08,995 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:08,995 INFO L175 Difference]: Start difference. First operand has 98 places, 122 transitions, 725 flow. Second operand 4 states and 2194 transitions. [2023-08-27 06:24:08,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 119 transitions, 938 flow [2023-08-27 06:24:08,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 119 transitions, 912 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-27 06:24:08,998 INFO L231 Difference]: Finished difference. Result has 97 places, 119 transitions, 706 flow [2023-08-27 06:24:08,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=706, PETRI_PLACES=97, PETRI_TRANSITIONS=119} [2023-08-27 06:24:08,999 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 13 predicate places. [2023-08-27 06:24:08,999 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 119 transitions, 706 flow [2023-08-27 06:24:08,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 536.5) internal successors, (2146), 4 states have internal predecessors, (2146), 0 states have call successors, (0), 0 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 06:24:08,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:08,999 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:08,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 06:24:08,999 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:09,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1608082454, now seen corresponding path program 2 times [2023-08-27 06:24:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851334207] [2023-08-27 06:24:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:09,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-27 06:24:09,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:09,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851334207] [2023-08-27 06:24:09,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851334207] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:24:09,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283639201] [2023-08-27 06:24:09,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 06:24:09,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:09,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:24:09,057 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) [2023-08-27 06:24:09,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 06:24:09,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 06:24:09,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 06:24:09,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-27 06:24:09,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:24:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-27 06:24:09,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 06:24:09,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283639201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:09,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 06:24:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-27 06:24:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497765564] [2023-08-27 06:24:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:09,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:24:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:24:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 06:24:09,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1416 [2023-08-27 06:24:09,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 119 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 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 06:24:09,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:09,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1416 [2023-08-27 06:24:09,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:10,872 INFO L124 PetriNetUnfolderBase]: 12986/18636 cut-off events. [2023-08-27 06:24:10,872 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2023-08-27 06:24:10,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37959 conditions, 18636 events. 12986/18636 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106234 event pairs, 11475 based on Foata normal form. 0/10101 useless extension candidates. Maximal degree in co-relation 37947. Up to 18584 conditions per place. [2023-08-27 06:24:10,936 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 104 selfloop transitions, 12 changer transitions 0/116 dead transitions. [2023-08-27 06:24:10,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 912 flow [2023-08-27 06:24:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:24:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:24:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1763 transitions. [2023-08-27 06:24:10,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150188323917137 [2023-08-27 06:24:10,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1763 transitions. [2023-08-27 06:24:10,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1763 transitions. [2023-08-27 06:24:10,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:10,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1763 transitions. [2023-08-27 06:24:10,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 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 06:24:10,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:10,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 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 06:24:10,943 INFO L175 Difference]: Start difference. First operand has 97 places, 119 transitions, 706 flow. Second operand 3 states and 1763 transitions. [2023-08-27 06:24:10,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 116 transitions, 912 flow [2023-08-27 06:24:10,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 893 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-27 06:24:10,946 INFO L231 Difference]: Finished difference. Result has 94 places, 116 transitions, 685 flow [2023-08-27 06:24:10,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=94, PETRI_TRANSITIONS=116} [2023-08-27 06:24:10,947 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 10 predicate places. [2023-08-27 06:24:10,947 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 116 transitions, 685 flow [2023-08-27 06:24:10,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 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 06:24:10,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:10,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:10,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-27 06:24:11,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:11,152 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:11,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash 687451981, now seen corresponding path program 1 times [2023-08-27 06:24:11,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:11,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112752953] [2023-08-27 06:24:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-27 06:24:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:11,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112752953] [2023-08-27 06:24:11,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112752953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:11,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:24:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:24:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202205444] [2023-08-27 06:24:11,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:11,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:24:11,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:24:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:24:11,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-27 06:24:11,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 116 transitions, 685 flow. Second operand has 4 states, 4 states have (on average 538.25) internal successors, (2153), 4 states have internal predecessors, (2153), 0 states have call successors, (0), 0 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 06:24:11,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:11,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-27 06:24:11,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:13,125 INFO L124 PetriNetUnfolderBase]: 12983/18633 cut-off events. [2023-08-27 06:24:13,126 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2023-08-27 06:24:13,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37957 conditions, 18633 events. 12983/18633 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106156 event pairs, 11475 based on Foata normal form. 3/10101 useless extension candidates. Maximal degree in co-relation 37945. Up to 18628 conditions per place. [2023-08-27 06:24:13,200 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 106 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2023-08-27 06:24:13,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 115 transitions, 911 flow [2023-08-27 06:24:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:24:13,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:24:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2191 transitions. [2023-08-27 06:24:13,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868290960451977 [2023-08-27 06:24:13,203 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2191 transitions. [2023-08-27 06:24:13,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2191 transitions. [2023-08-27 06:24:13,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:13,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2191 transitions. [2023-08-27 06:24:13,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 547.75) internal successors, (2191), 4 states have internal predecessors, (2191), 0 states have call successors, (0), 0 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 06:24:13,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:13,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:13,208 INFO L175 Difference]: Start difference. First operand has 94 places, 116 transitions, 685 flow. Second operand 4 states and 2191 transitions. [2023-08-27 06:24:13,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 115 transitions, 911 flow [2023-08-27 06:24:13,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 115 transitions, 864 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 06:24:13,211 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 652 flow [2023-08-27 06:24:13,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=652, PETRI_PLACES=95, PETRI_TRANSITIONS=115} [2023-08-27 06:24:13,211 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 11 predicate places. [2023-08-27 06:24:13,211 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 652 flow [2023-08-27 06:24:13,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 538.25) internal successors, (2153), 4 states have internal predecessors, (2153), 0 states have call successors, (0), 0 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 06:24:13,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:13,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:13,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 06:24:13,212 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:13,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash 916432052, now seen corresponding path program 1 times [2023-08-27 06:24:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:13,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625022511] [2023-08-27 06:24:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-27 06:24:13,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:13,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625022511] [2023-08-27 06:24:13,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625022511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:24:13,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:24:13,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:24:13,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428144241] [2023-08-27 06:24:13,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:24:13,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:24:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:24:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:24:13,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-27 06:24:13,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 115 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 538.5) internal successors, (2154), 4 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 06:24:13,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:13,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-27 06:24:13,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:14,969 INFO L124 PetriNetUnfolderBase]: 12980/18630 cut-off events. [2023-08-27 06:24:14,969 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2023-08-27 06:24:14,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37928 conditions, 18630 events. 12980/18630 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106193 event pairs, 11475 based on Foata normal form. 3/10098 useless extension candidates. Maximal degree in co-relation 37916. Up to 18624 conditions per place. [2023-08-27 06:24:15,022 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 102 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2023-08-27 06:24:15,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 112 transitions, 855 flow [2023-08-27 06:24:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:24:15,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:24:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2191 transitions. [2023-08-27 06:24:15,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868290960451977 [2023-08-27 06:24:15,025 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2191 transitions. [2023-08-27 06:24:15,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2191 transitions. [2023-08-27 06:24:15,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:24:15,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2191 transitions. [2023-08-27 06:24:15,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 547.75) internal successors, (2191), 4 states have internal predecessors, (2191), 0 states have call successors, (0), 0 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 06:24:15,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:15,029 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 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 06:24:15,030 INFO L175 Difference]: Start difference. First operand has 95 places, 115 transitions, 652 flow. Second operand 4 states and 2191 transitions. [2023-08-27 06:24:15,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 112 transitions, 855 flow [2023-08-27 06:24:15,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 112 transitions, 839 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-27 06:24:15,032 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 635 flow [2023-08-27 06:24:15,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=635, PETRI_PLACES=96, PETRI_TRANSITIONS=112} [2023-08-27 06:24:15,032 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2023-08-27 06:24:15,032 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 635 flow [2023-08-27 06:24:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 538.5) internal successors, (2154), 4 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 06:24:15,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:24:15,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:24:15,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 06:24:15,033 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:24:15,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:24:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725650, now seen corresponding path program 1 times [2023-08-27 06:24:15,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:24:15,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251814029] [2023-08-27 06:24:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:24:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:24:15,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251814029] [2023-08-27 06:24:15,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251814029] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:24:15,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498810594] [2023-08-27 06:24:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:24:15,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:24:15,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:24:15,918 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) [2023-08-27 06:24:15,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 06:24:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:24:16,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-27 06:24:16,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:24:16,134 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-27 06:24:16,164 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:24:16,218 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:24:16,218 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:24:16,259 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,295 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:24:16,295 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:24:16,348 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,434 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-27 06:24:16,435 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:24:16,468 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:24:16,504 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:24:16,548 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:24:16,583 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:24:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:24:16,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:24:16,658 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_723 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 9223372039002259456)) is different from false [2023-08-27 06:24:16,666 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_723 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 9223372039002259456)) is different from false [2023-08-27 06:24:17,015 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:24:17,015 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2023-08-27 06:24:17,039 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:24:17,041 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155905 treesize of output 154881 [2023-08-27 06:24:17,136 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1200 treesize of output 1104 [2023-08-27 06:24:17,163 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 549 treesize of output 537 [2023-08-27 06:24:17,186 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1092 treesize of output 900 [2023-08-27 06:24:17,210 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 441 treesize of output 435 [2023-08-27 06:24:17,236 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 435 treesize of output 411 [2023-08-27 06:24:17,260 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 458 treesize of output 410 [2023-08-27 06:24:18,225 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 06:24:18,763 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:24:18,764 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 661 treesize of output 1158 [2023-08-27 06:24:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2023-08-27 06:24:50,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498810594] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:24:50,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:24:50,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 33 [2023-08-27 06:24:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038607509] [2023-08-27 06:24:50,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:24:50,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-27 06:24:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:24:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-27 06:24:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=829, Unknown=9, NotChecked=126, Total=1190 [2023-08-27 06:24:50,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1416 [2023-08-27 06:24:50,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 112 transitions, 635 flow. Second operand has 35 states, 35 states have (on average 475.51428571428573) internal successors, (16643), 35 states have internal predecessors, (16643), 0 states have call successors, (0), 0 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 06:24:50,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:24:50,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1416 [2023-08-27 06:24:50,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:24:54,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:24:54,935 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_6~0 4) c_~get_8~0.offset)) (.cse1 (+ |c_#StackHeapBarrier| 1))) (and (<= 0 c_~id_6~0) (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_723 (Array Int Int)) (v_ArrVal_720 (Array Int Int))) (< (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) .cse0) 9223372039002259456)) (<= .cse1 |c_ULTIMATE.start_main_~#t1~0#1.base|) (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_723 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170| Int) (v_ArrVal_720 (Array Int Int))) (or (< (select (select (store (store (store (store |c_#memory_int| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170| v_ArrVal_720) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) .cse0) 9223372039002259456) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170|) 0)))) (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_723 (Array Int Int)) (v_ArrVal_719 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170| Int) (v_ArrVal_720 (Array Int Int))) (or (< (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_719) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170| v_ArrVal_720) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) .cse0) 9223372039002259456) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_170|) 0)))) (<= .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base|) (<= .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base|))) is different from false [2023-08-27 06:24:55,164 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_6~0 4) c_~get_8~0.offset))) (and (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_721 (Array Int Int)) (v_ArrVal_723 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_721) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) .cse0) 9223372039002259456)) (forall ((v_ArrVal_723 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_723) c_~get_8~0.base) .cse0) 9223372039002259456)))) is different from false [2023-08-27 06:25:03,179 INFO L124 PetriNetUnfolderBase]: 43954/63151 cut-off events. [2023-08-27 06:25:03,180 INFO L125 PetriNetUnfolderBase]: For 595/595 co-relation queries the response was YES. [2023-08-27 06:25:03,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128515 conditions, 63151 events. 43954/63151 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 2271. Compared 434446 event pairs, 19989 based on Foata normal form. 0/34786 useless extension candidates. Maximal degree in co-relation 128503. Up to 17898 conditions per place. [2023-08-27 06:25:03,521 INFO L140 encePairwiseOnDemand]: 1393/1416 looper letters, 302 selfloop transitions, 63 changer transitions 0/365 dead transitions. [2023-08-27 06:25:03,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 365 transitions, 2372 flow [2023-08-27 06:25:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-27 06:25:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-27 06:25:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 8793 transitions. [2023-08-27 06:25:03,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3449858757062147 [2023-08-27 06:25:03,529 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 8793 transitions. [2023-08-27 06:25:03,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 8793 transitions. [2023-08-27 06:25:03,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:25:03,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 8793 transitions. [2023-08-27 06:25:03,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 488.5) internal successors, (8793), 18 states have internal predecessors, (8793), 0 states have call successors, (0), 0 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 06:25:03,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:25:03,548 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:25:03,548 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 635 flow. Second operand 18 states and 8793 transitions. [2023-08-27 06:25:03,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 365 transitions, 2372 flow [2023-08-27 06:25:03,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 365 transitions, 2316 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-08-27 06:25:03,554 INFO L231 Difference]: Finished difference. Result has 123 places, 160 transitions, 1197 flow [2023-08-27 06:25:03,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1197, PETRI_PLACES=123, PETRI_TRANSITIONS=160} [2023-08-27 06:25:03,554 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 39 predicate places. [2023-08-27 06:25:03,554 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 160 transitions, 1197 flow [2023-08-27 06:25:03,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 475.51428571428573) internal successors, (16643), 35 states have internal predecessors, (16643), 0 states have call successors, (0), 0 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 06:25:03,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:25:03,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:25:03,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-27 06:25:03,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:25:03,762 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:25:03,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:25:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725664, now seen corresponding path program 1 times [2023-08-27 06:25:03,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:25:03,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753853982] [2023-08-27 06:25:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:25:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:25:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:25:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:25:04,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:25:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753853982] [2023-08-27 06:25:04,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753853982] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:25:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293167402] [2023-08-27 06:25:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:25:04,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:25:04,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:25:04,605 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) [2023-08-27 06:25:04,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 06:25:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:25:04,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-27 06:25:04,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:25:04,819 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-27 06:25:04,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:25:04,920 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:25:04,921 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:25:04,966 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,036 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:25:05,037 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:25:05,082 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,152 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-27 06:25:05,153 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:25:05,231 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:25:05,281 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:25:05,324 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:25:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:25:05,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:25:05,373 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_818 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_818) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 4294967296))) is different from false [2023-08-27 06:25:05,860 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:25:05,861 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2023-08-27 06:25:06,002 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:25:06,008 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44105731 treesize of output 43843587 [2023-08-27 06:25:06,258 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 661 treesize of output 655 [2023-08-27 06:25:06,278 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 655 treesize of output 631 [2023-08-27 06:25:06,396 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 631 treesize of output 583 [2023-08-27 06:25:06,412 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1250 treesize of output 1058 [2023-08-27 06:25:06,433 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 487 treesize of output 475 [2023-08-27 06:25:06,452 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 474 [2023-08-27 06:25:06,953 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 06:25:07,574 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:25:07,574 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 622 treesize of output 1119 [2023-08-27 06:26:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-27 06:26:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293167402] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:26:19,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:26:19,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 32 [2023-08-27 06:26:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048934855] [2023-08-27 06:26:19,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:26:19,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-08-27 06:26:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:26:19,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-08-27 06:26:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=822, Unknown=19, NotChecked=62, Total=1122 [2023-08-27 06:26:19,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1416 [2023-08-27 06:26:19,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 160 transitions, 1197 flow. Second operand has 34 states, 34 states have (on average 475.5) internal successors, (16167), 34 states have internal predecessors, (16167), 0 states have call successors, (0), 0 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 06:26:19,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:26:19,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1416 [2023-08-27 06:26:19,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:26:22,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:25,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:27,585 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_#StackHeapBarrier| 1))) (and (<= 0 c_~id_6~0) (<= .cse0 |c_ULTIMATE.start_main_~#t1~0#1.base|) (forall ((v_ArrVal_816 (Array Int Int)) (v_ArrVal_815 (Array Int Int)) (v_ArrVal_818 (Array Int Int)) (v_ArrVal_817 (Array Int Int))) (< 0 (+ (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_815) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_816) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_817) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_818) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 4294967296))) (<= .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base|) (<= .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base|))) is different from false [2023-08-27 06:26:29,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:32,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:34,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:36,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:38,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:40,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:42,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:44,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:46,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:49,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:50,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:52,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:54,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:56,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:26:58,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:11,117 INFO L124 PetriNetUnfolderBase]: 65077/93691 cut-off events. [2023-08-27 06:27:11,117 INFO L125 PetriNetUnfolderBase]: For 47830/47830 co-relation queries the response was YES. [2023-08-27 06:27:11,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257254 conditions, 93691 events. 65077/93691 cut-off events. For 47830/47830 co-relation queries the response was YES. Maximal size of possible extension queue 3323. Compared 680039 event pairs, 26751 based on Foata normal form. 0/62101 useless extension candidates. Maximal degree in co-relation 257231. Up to 24375 conditions per place. [2023-08-27 06:27:11,892 INFO L140 encePairwiseOnDemand]: 1382/1416 looper letters, 301 selfloop transitions, 95 changer transitions 0/396 dead transitions. [2023-08-27 06:27:11,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 396 transitions, 3032 flow [2023-08-27 06:27:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-27 06:27:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-27 06:27:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 8788 transitions. [2023-08-27 06:27:11,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3447897049591965 [2023-08-27 06:27:11,900 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 8788 transitions. [2023-08-27 06:27:11,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 8788 transitions. [2023-08-27 06:27:11,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:27:11,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 8788 transitions. [2023-08-27 06:27:11,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 488.22222222222223) internal successors, (8788), 18 states have internal predecessors, (8788), 0 states have call successors, (0), 0 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 06:27:11,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:27:11,922 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:27:11,922 INFO L175 Difference]: Start difference. First operand has 123 places, 160 transitions, 1197 flow. Second operand 18 states and 8788 transitions. [2023-08-27 06:27:11,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 396 transitions, 3032 flow [2023-08-27 06:27:11,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 396 transitions, 3007 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-27 06:27:11,995 INFO L231 Difference]: Finished difference. Result has 146 places, 210 transitions, 1877 flow [2023-08-27 06:27:11,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1877, PETRI_PLACES=146, PETRI_TRANSITIONS=210} [2023-08-27 06:27:11,996 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 62 predicate places. [2023-08-27 06:27:11,996 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 210 transitions, 1877 flow [2023-08-27 06:27:11,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 475.5) internal successors, (16167), 34 states have internal predecessors, (16167), 0 states have call successors, (0), 0 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 06:27:11,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:27:11,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:27:12,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-27 06:27:12,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:27:12,203 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:27:12,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:27:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725683, now seen corresponding path program 1 times [2023-08-27 06:27:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:27:12,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941441985] [2023-08-27 06:27:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:27:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:27:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:27:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:27:13,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:27:13,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941441985] [2023-08-27 06:27:13,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941441985] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:27:13,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329732769] [2023-08-27 06:27:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:27:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:27:13,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:27:13,763 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) [2023-08-27 06:27:13,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 06:27:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:27:13,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 70 conjunts are in the unsatisfiable core [2023-08-27 06:27:13,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:27:13,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:13,984 INFO L322 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-08-27 06:27:13,984 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 32 [2023-08-27 06:27:14,065 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:27:14,142 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:27:14,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:27:14,203 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:14,271 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:27:14,271 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:27:14,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:14,386 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-27 06:27:14,386 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-27 06:27:14,474 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:14,612 INFO L322 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2023-08-27 06:27:14,612 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2023-08-27 06:27:14,713 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:14,850 INFO L322 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2023-08-27 06:27:14,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2023-08-27 06:27:14,917 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:15,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:15,016 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:15,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:15,105 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:15,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:27:15,175 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:27:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:27:15,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:27:17,564 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_920 (Array Int Int)) (v_ArrVal_917 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_917) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_919) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_920) c_~get_2~0.base) (+ (* c_~id_0~0 4) c_~get_2~0.offset))))) is different from false [2023-08-27 06:27:24,608 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:27:24,609 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 50 [2023-08-27 06:27:24,652 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:27:24,653 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 688387 treesize of output 687363 [2023-08-27 06:27:24,950 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2677 treesize of output 2629 [2023-08-27 06:27:25,014 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2629 treesize of output 2245 [2023-08-27 06:27:25,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2245 treesize of output 2053 [2023-08-27 06:27:25,261 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2053 treesize of output 2029 [2023-08-27 06:27:25,322 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2029 treesize of output 2023 [2023-08-27 06:27:25,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2023 treesize of output 2011 [2023-08-27 06:27:25,443 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2011 treesize of output 1915 [2023-08-27 06:27:25,496 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 06:27:25,506 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2682 treesize of output 1914 [2023-08-27 06:27:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-27 06:27:31,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329732769] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:27:31,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:27:31,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 15] total 42 [2023-08-27 06:27:31,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66563344] [2023-08-27 06:27:31,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:27:31,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-08-27 06:27:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:27:31,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-08-27 06:27:31,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1437, Unknown=28, NotChecked=82, Total=1892 [2023-08-27 06:27:31,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 1416 [2023-08-27 06:27:32,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 210 transitions, 1877 flow. Second operand has 44 states, 44 states have (on average 461.29545454545456) internal successors, (20297), 44 states have internal predecessors, (20297), 0 states have call successors, (0), 0 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 06:27:32,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:27:32,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 1416 [2023-08-27 06:27:32,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:27:36,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:38,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:41,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:43,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:45,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:52,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:54,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:57,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:27:59,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:02,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:08,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:11,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:11,892 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_0~0 4) c_~get_2~0.offset))) (and (forall ((v_ArrVal_920 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| Int) (v_ArrVal_917 (Array Int Int)) (v_ArrVal_916 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179|) 0)) (< 0 (+ 2147483649 (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_916) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| v_ArrVal_917) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_919) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_920) c_~get_2~0.base) .cse0))))) (forall ((v_ArrVal_920 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_919) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_920) c_~get_2~0.base) .cse0)))) (forall ((v_ArrVal_920 (Array Int Int)) (v_ArrVal_914 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| Int) (v_ArrVal_917 (Array Int Int)) (v_ArrVal_916 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int)) (|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_180| Int)) (or (< 0 (+ 2147483649 (select (select (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_914) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_180| v_ArrVal_916) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| v_ArrVal_917) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_919) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_920) c_~get_2~0.base) .cse0))) (not (= (select (store |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_180| 1) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179|) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_180|) 0)))) (forall ((|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179|) 0)) (forall ((v_ArrVal_920 (Array Int Int)) (v_ArrVal_917 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store (store |c_#memory_int| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_179| v_ArrVal_917) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_919) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_920) c_~get_2~0.base) .cse0)))))))) is different from false [2023-08-27 06:28:23,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:25,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:28,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:30,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:28:47,926 INFO L124 PetriNetUnfolderBase]: 63315/91581 cut-off events. [2023-08-27 06:28:47,926 INFO L125 PetriNetUnfolderBase]: For 191379/191379 co-relation queries the response was YES. [2023-08-27 06:28:48,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333770 conditions, 91581 events. 63315/91581 cut-off events. For 191379/191379 co-relation queries the response was YES. Maximal size of possible extension queue 3292. Compared 662908 event pairs, 40612 based on Foata normal form. 0/66446 useless extension candidates. Maximal degree in co-relation 333740. Up to 53792 conditions per place. [2023-08-27 06:28:48,783 INFO L140 encePairwiseOnDemand]: 1399/1416 looper letters, 370 selfloop transitions, 43 changer transitions 0/413 dead transitions. [2023-08-27 06:28:48,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 413 transitions, 4023 flow [2023-08-27 06:28:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-27 06:28:48,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-27 06:28:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 10315 transitions. [2023-08-27 06:28:48,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33111838726245507 [2023-08-27 06:28:48,790 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 10315 transitions. [2023-08-27 06:28:48,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 10315 transitions. [2023-08-27 06:28:48,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:28:48,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 10315 transitions. [2023-08-27 06:28:48,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 468.8636363636364) internal successors, (10315), 22 states have internal predecessors, (10315), 0 states have call successors, (0), 0 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 06:28:48,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 1416.0) internal successors, (32568), 23 states have internal predecessors, (32568), 0 states have call successors, (0), 0 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 06:28:48,836 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 1416.0) internal successors, (32568), 23 states have internal predecessors, (32568), 0 states have call successors, (0), 0 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 06:28:48,837 INFO L175 Difference]: Start difference. First operand has 146 places, 210 transitions, 1877 flow. Second operand 22 states and 10315 transitions. [2023-08-27 06:28:48,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 413 transitions, 4023 flow [2023-08-27 06:28:49,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 413 transitions, 3908 flow, removed 14 selfloop flow, removed 10 redundant places. [2023-08-27 06:28:49,340 INFO L231 Difference]: Finished difference. Result has 172 places, 243 transitions, 2296 flow [2023-08-27 06:28:49,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2296, PETRI_PLACES=172, PETRI_TRANSITIONS=243} [2023-08-27 06:28:49,341 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 88 predicate places. [2023-08-27 06:28:49,341 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 243 transitions, 2296 flow [2023-08-27 06:28:49,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 461.29545454545456) internal successors, (20297), 44 states have internal predecessors, (20297), 0 states have call successors, (0), 0 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 06:28:49,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:28:49,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:28:49,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-27 06:28:49,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-27 06:28:49,548 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:28:49,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:28:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725682, now seen corresponding path program 1 times [2023-08-27 06:28:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:28:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179804099] [2023-08-27 06:28:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:49,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:28:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:28:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:28:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179804099] [2023-08-27 06:28:52,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179804099] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:28:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683441022] [2023-08-27 06:28:52,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:28:52,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:28:52,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:28:52,367 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) [2023-08-27 06:28:52,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-27 06:28:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:28:52,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 59 conjunts are in the unsatisfiable core [2023-08-27 06:28:52,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:28:52,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:52,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:52,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:52,852 INFO L322 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-08-27 06:28:52,853 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 32 [2023-08-27 06:28:53,129 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:28:53,567 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:28:53,567 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:28:53,844 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:54,225 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:28:54,226 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:28:54,623 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:54,954 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-27 06:28:54,954 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-27 06:28:55,471 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:56,006 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-27 06:28:56,006 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-27 06:28:56,197 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:56,399 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-27 06:28:56,400 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:28:56,704 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:56,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:56,956 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:57,279 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:57,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:28:57,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:28:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:28:57,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:29:05,192 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1022 (Array Int Int)) (v_ArrVal_1021 (Array Int Int)) (v_ArrVal_1020 (Array Int Int))) (< (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1019) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1020) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1021) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1022) c_~get_2~0.base) (+ (* c_~id_0~0 4) c_~get_2~0.offset)) 2147483648)) is different from false [2023-08-27 06:29:08,518 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:29:08,518 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2023-08-27 06:29:08,571 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:29:08,572 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 9745 treesize of output 9681 [2023-08-27 06:29:08,648 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1200 treesize of output 1104 [2023-08-27 06:29:08,698 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 549 treesize of output 543 [2023-08-27 06:29:08,723 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1098 treesize of output 1074 [2023-08-27 06:29:08,748 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1074 treesize of output 1026 [2023-08-27 06:29:08,774 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1026 treesize of output 834 [2023-08-27 06:29:08,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 410 [2023-08-27 06:29:11,974 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-27 06:29:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-27 06:29:12,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683441022] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:29:12,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:29:12,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 13] total 35 [2023-08-27 06:29:12,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346676624] [2023-08-27 06:29:12,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:29:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-27 06:29:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:29:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-27 06:29:12,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=967, Unknown=23, NotChecked=68, Total=1332 [2023-08-27 06:29:12,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 1416 [2023-08-27 06:29:12,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 243 transitions, 2296 flow. Second operand has 37 states, 37 states have (on average 476.5405405405405) internal successors, (17632), 37 states have internal predecessors, (17632), 0 states have call successors, (0), 0 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 06:29:12,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:29:12,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 1416 [2023-08-27 06:29:12,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:29:16,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:18,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:21,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:22,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:25,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:31,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:32,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:29:42,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:30:10,028 INFO L124 PetriNetUnfolderBase]: 61333/89246 cut-off events. [2023-08-27 06:30:10,029 INFO L125 PetriNetUnfolderBase]: For 299991/299991 co-relation queries the response was YES. [2023-08-27 06:30:10,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333032 conditions, 89246 events. 61333/89246 cut-off events. For 299991/299991 co-relation queries the response was YES. Maximal size of possible extension queue 3280. Compared 656008 event pairs, 38252 based on Foata normal form. 2334/70485 useless extension candidates. Maximal degree in co-relation 332987. Up to 53785 conditions per place. [2023-08-27 06:30:11,123 INFO L140 encePairwiseOnDemand]: 1399/1416 looper letters, 368 selfloop transitions, 53 changer transitions 0/421 dead transitions. [2023-08-27 06:30:11,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 421 transitions, 4228 flow [2023-08-27 06:30:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-27 06:30:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-27 06:30:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 8743 transitions. [2023-08-27 06:30:11,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34302416823603266 [2023-08-27 06:30:11,129 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 8743 transitions. [2023-08-27 06:30:11,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 8743 transitions. [2023-08-27 06:30:11,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:30:11,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 8743 transitions. [2023-08-27 06:30:11,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 485.72222222222223) internal successors, (8743), 18 states have internal predecessors, (8743), 0 states have call successors, (0), 0 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 06:30:11,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:30:11,166 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1416.0) internal successors, (26904), 19 states have internal predecessors, (26904), 0 states have call successors, (0), 0 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 06:30:11,166 INFO L175 Difference]: Start difference. First operand has 172 places, 243 transitions, 2296 flow. Second operand 18 states and 8743 transitions. [2023-08-27 06:30:11,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 421 transitions, 4228 flow [2023-08-27 06:30:12,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 421 transitions, 4171 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-08-27 06:30:12,517 INFO L231 Difference]: Finished difference. Result has 195 places, 250 transitions, 2524 flow [2023-08-27 06:30:12,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=2145, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2524, PETRI_PLACES=195, PETRI_TRANSITIONS=250} [2023-08-27 06:30:12,518 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 111 predicate places. [2023-08-27 06:30:12,518 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 250 transitions, 2524 flow [2023-08-27 06:30:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 476.5405405405405) internal successors, (17632), 37 states have internal predecessors, (17632), 0 states have call successors, (0), 0 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 06:30:12,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:30:12,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:30:12,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-27 06:30:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-08-27 06:30:12,726 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:30:12,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:30:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1307431761, now seen corresponding path program 1 times [2023-08-27 06:30:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:30:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633716700] [2023-08-27 06:30:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:30:12,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:30:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:30:15,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:30:15,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:30:15,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633716700] [2023-08-27 06:30:15,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633716700] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:30:15,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821955947] [2023-08-27 06:30:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:30:15,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:30:15,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:30:15,060 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) [2023-08-27 06:30:15,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-27 06:30:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:30:15,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-27 06:30:15,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:30:15,331 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-27 06:30:15,584 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:30:15,996 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:30:15,997 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:30:16,222 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:16,578 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:30:16,578 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:30:16,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:17,001 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:30:17,001 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:30:17,127 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:17,210 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-27 06:30:17,211 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-27 06:30:17,498 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:30:17,706 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-27 06:30:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:30:18,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:30:18,377 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1109 (Array Int Int))) (< 0 (+ 4294967296 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1109) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset))))) is different from false [2023-08-27 06:30:18,415 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1109 (Array Int Int)) (v_ArrVal_1108 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1108) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1109) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2023-08-27 06:30:19,871 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:19,871 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2023-08-27 06:30:19,921 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:19,921 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2723 treesize of output 2595 [2023-08-27 06:30:19,940 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2023-08-27 06:30:19,956 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-08-27 06:30:19,972 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 54 [2023-08-27 06:30:21,061 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:30:21,061 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 189 [2023-08-27 06:30:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2023-08-27 06:30:22,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821955947] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:30:22,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:30:22,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 27 [2023-08-27 06:30:22,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770331754] [2023-08-27 06:30:22,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:30:22,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-27 06:30:22,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:30:22,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-27 06:30:22,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=569, Unknown=4, NotChecked=102, Total=812 [2023-08-27 06:30:22,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 1416 [2023-08-27 06:30:22,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 250 transitions, 2524 flow. Second operand has 29 states, 29 states have (on average 478.0) internal successors, (13862), 29 states have internal predecessors, (13862), 0 states have call successors, (0), 0 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 06:30:22,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:30:22,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 1416 [2023-08-27 06:30:22,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:30:26,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-27 06:30:29,507 WARN L839 $PredicateComparison]: unable to prove that (and (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#t1~0#1.base|) (forall ((v_ArrVal_1109 (Array Int Int)) (v_ArrVal_1108 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1108) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1109) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) (<= 0 c_~id_3~0)) is different from false [2023-08-27 06:30:56,004 INFO L124 PetriNetUnfolderBase]: 85618/129805 cut-off events. [2023-08-27 06:30:56,004 INFO L125 PetriNetUnfolderBase]: For 532158/532158 co-relation queries the response was YES. [2023-08-27 06:30:57,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497989 conditions, 129805 events. 85618/129805 cut-off events. For 532158/532158 co-relation queries the response was YES. Maximal size of possible extension queue 5180. Compared 1080055 event pairs, 32154 based on Foata normal form. 0/101418 useless extension candidates. Maximal degree in co-relation 497934. Up to 79690 conditions per place. [2023-08-27 06:30:58,007 INFO L140 encePairwiseOnDemand]: 1396/1416 looper letters, 437 selfloop transitions, 104 changer transitions 0/541 dead transitions. [2023-08-27 06:30:58,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 541 transitions, 6192 flow [2023-08-27 06:30:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-27 06:30:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-27 06:30:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 8289 transitions. [2023-08-27 06:30:58,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3443419740777667 [2023-08-27 06:30:58,015 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 8289 transitions. [2023-08-27 06:30:58,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 8289 transitions. [2023-08-27 06:30:58,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:30:58,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 8289 transitions. [2023-08-27 06:30:58,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 487.5882352941176) internal successors, (8289), 17 states have internal predecessors, (8289), 0 states have call successors, (0), 0 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 06:30:58,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1416.0) internal successors, (25488), 18 states have internal predecessors, (25488), 0 states have call successors, (0), 0 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 06:30:58,036 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1416.0) internal successors, (25488), 18 states have internal predecessors, (25488), 0 states have call successors, (0), 0 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 06:30:58,036 INFO L175 Difference]: Start difference. First operand has 195 places, 250 transitions, 2524 flow. Second operand 17 states and 8289 transitions. [2023-08-27 06:30:58,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 541 transitions, 6192 flow [2023-08-27 06:31:05,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 541 transitions, 6042 flow, removed 66 selfloop flow, removed 4 redundant places. [2023-08-27 06:31:05,617 INFO L231 Difference]: Finished difference. Result has 217 places, 328 transitions, 3771 flow [2023-08-27 06:31:05,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=2441, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3771, PETRI_PLACES=217, PETRI_TRANSITIONS=328} [2023-08-27 06:31:05,618 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 133 predicate places. [2023-08-27 06:31:05,618 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 328 transitions, 3771 flow [2023-08-27 06:31:05,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 478.0) internal successors, (13862), 29 states have internal predecessors, (13862), 0 states have call successors, (0), 0 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 06:31:05,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:05,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:05,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-27 06:31:05,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-08-27 06:31:05,826 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-27 06:31:05,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:05,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1307431622, now seen corresponding path program 1 times [2023-08-27 06:31:05,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:05,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123458914] [2023-08-27 06:31:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:05,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:31:07,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123458914] [2023-08-27 06:31:07,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123458914] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 06:31:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020012938] [2023-08-27 06:31:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:07,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 06:31:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:31:07,910 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) [2023-08-27 06:31:07,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-27 06:31:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:08,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-27 06:31:08,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 06:31:08,167 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-27 06:31:08,305 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-27 06:31:08,680 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-27 06:31:08,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-27 06:31:08,936 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:31:09,379 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-27 06:31:09,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-27 06:31:09,650 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:31:09,926 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-27 06:31:09,926 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-27 06:31:10,260 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:31:10,793 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-08-27 06:31:10,794 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2023-08-27 06:31:11,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:31:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-27 06:31:11,257 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-27 06:31:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:31:11,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 06:31:16,372 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:31:16,372 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-08-27 06:31:16,429 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:31:16,429 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4897 treesize of output 4769 [2023-08-27 06:31:16,488 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 129 [2023-08-27 06:31:16,513 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 123 [2023-08-27 06:31:16,530 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 99 [2023-08-27 06:31:16,548 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 98 [2023-08-27 06:31:18,271 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-27 06:31:18,271 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 191 [2023-08-27 06:31:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 06:31:20,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020012938] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 06:31:20,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 06:31:20,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2023-08-27 06:31:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215202185] [2023-08-27 06:31:20,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 06:31:20,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-27 06:31:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:20,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-27 06:31:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=783, Unknown=13, NotChecked=0, Total=992 [2023-08-27 06:31:20,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 1416 [2023-08-27 06:31:20,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 328 transitions, 3771 flow. Second operand has 32 states, 32 states have (on average 477.78125) internal successors, (15289), 32 states have internal predecessors, (15289), 0 states have call successors, (0), 0 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 06:31:20,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:20,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 1416 [2023-08-27 06:31:20,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:25,666 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_1196 (Array Int Int)) (v_ArrVal_1195 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1195) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1196) c_~get_5~0.base) .cse0) 9223372039002259456)) (forall ((|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189| Int) (v_ArrVal_1196 (Array Int Int)) (v_ArrVal_1195 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189|) 0)) (< (select (select (store (store |c_#memory_int| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189| v_ArrVal_1195) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1196) c_~get_5~0.base) .cse0) 9223372039002259456))) (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#t1~0#1.base|) (forall ((|v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189| Int) (v_ArrVal_1196 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_ArrVal_1194 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189|) 0)) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1194) |v_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base_189| v_ArrVal_1195) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1196) c_~get_5~0.base) .cse0) 9223372039002259456))) (<= 0 c_~id_3~0))) is different from false