/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 -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/pthread-wmm/safe003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:24:09,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:24:09,709 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 [2023-08-26 21:24:09,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:24:09,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:24:09,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:24:09,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:24:09,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:24:09,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:24:09,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:24:09,754 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:24:09,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:24:09,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:24:09,756 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:24:09,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:24:09,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:24:09,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:24:09,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:24:09,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:24:09,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:24:09,757 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:24:09,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:24:09,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:24:09,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:24:09,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:24:09,758 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:24:09,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:24:09,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:24:09,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:24:09,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:24:09,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:24:09,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:24:09,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:24:09,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:24:09,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:24:09,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:24:10,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:24:10,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:24:10,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:24:10,124 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:24:10,125 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:24:10,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2023-08-26 21:24:11,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:24:11,456 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:24:11,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2023-08-26 21:24:11,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46544b1de/253e3e3d9f864bb9815e8d0b559ad4b5/FLAG6ded5a8de [2023-08-26 21:24:11,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46544b1de/253e3e3d9f864bb9815e8d0b559ad4b5 [2023-08-26 21:24:11,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:24:11,488 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:24:11,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:24:11,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:24:11,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:24:11,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a843f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11, skipping insertion in model container [2023-08-26 21:24:11,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,528 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:24:11,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:24:11,779 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:24:11,806 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:24:11,822 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:24:11,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:24:11,877 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:24:11,877 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:24:11,883 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:24:11,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11 WrapperNode [2023-08-26 21:24:11,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:24:11,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:24:11,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:24:11,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:24:11,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,947 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-08-26 21:24:11,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:24:11,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:24:11,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:24:11,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:24:11,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:11,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:24:11,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:24:11,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:24:11,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:24:11,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (1/1) ... [2023-08-26 21:24:12,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:24:12,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:24:12,026 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) [2023-08-26 21:24:12,042 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 [2023-08-26 21:24:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:24:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:24:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:24:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:24:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 21:24:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 21:24:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:24:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:24:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:24:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:24:12,070 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 21:24:12,205 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:24:12,207 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:24:12,367 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:24:12,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:24:12,391 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:24:12,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:24:12 BoogieIcfgContainer [2023-08-26 21:24:12,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:24:12,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:24:12,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:24:12,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:24:12,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:24:11" (1/3) ... [2023-08-26 21:24:12,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbc613e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:24:12, skipping insertion in model container [2023-08-26 21:24:12,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:24:11" (2/3) ... [2023-08-26 21:24:12,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbc613e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:24:12, skipping insertion in model container [2023-08-26 21:24:12,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:24:12" (3/3) ... [2023-08-26 21:24:12,408 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2023-08-26 21:24:12,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:24:12,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-26 21:24:12,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:24:12,482 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:24:12,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 95 transitions, 205 flow [2023-08-26 21:24:12,555 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-26 21:24:12,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:24:12,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:24:12,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 95 transitions, 205 flow [2023-08-26 21:24:12,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 92 transitions, 193 flow [2023-08-26 21:24:12,574 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:24:12,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-26 21:24:12,588 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-26 21:24:12,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 92 transitions, 193 flow [2023-08-26 21:24:12,609 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-26 21:24:12,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:24:12,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:24:12,611 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-26 21:24:14,911 INFO L134 LiptonReduction]: Checked pairs total: 6787 [2023-08-26 21:24:14,911 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-26 21:24:14,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:24:14,929 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;@a218079, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:24:14,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 21:24:14,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:24:14,932 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-26 21:24:14,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:24:14,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:14,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:24:14,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:14,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:14,937 INFO L85 PathProgramCache]: Analyzing trace with hash 336258923, now seen corresponding path program 1 times [2023-08-26 21:24:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365585085] [2023-08-26 21:24:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:15,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365585085] [2023-08-26 21:24:15,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365585085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:15,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:15,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:24:15,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178613410] [2023-08-26 21:24:15,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:15,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:24:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:15,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:24:15,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:24:15,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:15,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:15,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:15,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:15,328 INFO L124 PetriNetUnfolderBase]: 496/814 cut-off events. [2023-08-26 21:24:15,329 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 21:24:15,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 814 events. 496/814 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3702 event pairs, 127 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 1647. Up to 710 conditions per place. [2023-08-26 21:24:15,337 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 30 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2023-08-26 21:24:15,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 157 flow [2023-08-26 21:24:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:24:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:24:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-08-26 21:24:15,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083798882681564 [2023-08-26 21:24:15,349 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-08-26 21:24:15,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-08-26 21:24:15,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:15,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-08-26 21:24:15,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,361 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 59 flow. Second operand 3 states and 273 transitions. [2023-08-26 21:24:15,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 157 flow [2023-08-26 21:24:15,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 21:24:15,365 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 90 flow [2023-08-26 21:24:15,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-08-26 21:24:15,370 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-26 21:24:15,370 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 90 flow [2023-08-26 21:24:15,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:15,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:15,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:24:15,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:15,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1724779416, now seen corresponding path program 1 times [2023-08-26 21:24:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:15,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246067306] [2023-08-26 21:24:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:15,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:15,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246067306] [2023-08-26 21:24:15,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246067306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:15,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:15,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:24:15,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85152611] [2023-08-26 21:24:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:15,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:24:15,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:15,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:24:15,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:24:15,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:15,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:15,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:15,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:15,848 INFO L124 PetriNetUnfolderBase]: 976/1725 cut-off events. [2023-08-26 21:24:15,848 INFO L125 PetriNetUnfolderBase]: For 253/269 co-relation queries the response was YES. [2023-08-26 21:24:15,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4272 conditions, 1725 events. 976/1725 cut-off events. For 253/269 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10740 event pairs, 370 based on Foata normal form. 1/1393 useless extension candidates. Maximal degree in co-relation 4261. Up to 854 conditions per place. [2023-08-26 21:24:15,861 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 36 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2023-08-26 21:24:15,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 241 flow [2023-08-26 21:24:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:24:15,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:24:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-26 21:24:15,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4729981378026071 [2023-08-26 21:24:15,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-26 21:24:15,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-26 21:24:15,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:15,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-26 21:24:15,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,874 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 90 flow. Second operand 3 states and 254 transitions. [2023-08-26 21:24:15,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 241 flow [2023-08-26 21:24:15,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:15,876 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 140 flow [2023-08-26 21:24:15,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-26 21:24:15,877 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-26 21:24:15,878 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 140 flow [2023-08-26 21:24:15,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:15,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:15,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:15,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:24:15,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:15,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1928555294, now seen corresponding path program 1 times [2023-08-26 21:24:15,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:15,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245338587] [2023-08-26 21:24:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:15,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:16,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:16,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245338587] [2023-08-26 21:24:16,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245338587] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:16,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791589348] [2023-08-26 21:24:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:16,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:16,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:16,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:16,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:16,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:16,198 INFO L124 PetriNetUnfolderBase]: 924/1651 cut-off events. [2023-08-26 21:24:16,198 INFO L125 PetriNetUnfolderBase]: For 824/840 co-relation queries the response was YES. [2023-08-26 21:24:16,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4872 conditions, 1651 events. 924/1651 cut-off events. For 824/840 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 10235 event pairs, 207 based on Foata normal form. 11/1387 useless extension candidates. Maximal degree in co-relation 4858. Up to 829 conditions per place. [2023-08-26 21:24:16,210 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 46 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2023-08-26 21:24:16,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 58 transitions, 352 flow [2023-08-26 21:24:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-26 21:24:16,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46089385474860334 [2023-08-26 21:24:16,212 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-26 21:24:16,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-26 21:24:16,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:16,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-26 21:24:16,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,215 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,215 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 140 flow. Second operand 4 states and 330 transitions. [2023-08-26 21:24:16,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 58 transitions, 352 flow [2023-08-26 21:24:16,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:16,219 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 184 flow [2023-08-26 21:24:16,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-26 21:24:16,220 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-08-26 21:24:16,220 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 184 flow [2023-08-26 21:24:16,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:16,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:16,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:24:16,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:16,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash -844185456, now seen corresponding path program 1 times [2023-08-26 21:24:16,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:16,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639832485] [2023-08-26 21:24:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:16,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:16,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:16,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639832485] [2023-08-26 21:24:16,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639832485] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:16,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:16,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:16,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812958729] [2023-08-26 21:24:16,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:16,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:16,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:16,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:16,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:16,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:16,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:16,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:16,411 INFO L124 PetriNetUnfolderBase]: 683/1174 cut-off events. [2023-08-26 21:24:16,411 INFO L125 PetriNetUnfolderBase]: For 1537/1561 co-relation queries the response was YES. [2023-08-26 21:24:16,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3888 conditions, 1174 events. 683/1174 cut-off events. For 1537/1561 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6362 event pairs, 99 based on Foata normal form. 16/967 useless extension candidates. Maximal degree in co-relation 3871. Up to 911 conditions per place. [2023-08-26 21:24:16,421 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 41 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2023-08-26 21:24:16,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 352 flow [2023-08-26 21:24:16,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:16,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-26 21:24:16,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776536312849162 [2023-08-26 21:24:16,423 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-26 21:24:16,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-26 21:24:16,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:16,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-26 21:24:16,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,426 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,426 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 184 flow. Second operand 4 states and 342 transitions. [2023-08-26 21:24:16,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 352 flow [2023-08-26 21:24:16,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 51 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:16,431 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 177 flow [2023-08-26 21:24:16,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-26 21:24:16,431 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2023-08-26 21:24:16,432 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 177 flow [2023-08-26 21:24:16,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:16,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:16,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:24:16,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:16,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -844185455, now seen corresponding path program 1 times [2023-08-26 21:24:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:16,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071029677] [2023-08-26 21:24:16,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:16,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071029677] [2023-08-26 21:24:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071029677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:16,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:16,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969774953] [2023-08-26 21:24:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:16,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:16,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:16,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:16,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:16,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:16,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:16,608 INFO L124 PetriNetUnfolderBase]: 470/819 cut-off events. [2023-08-26 21:24:16,609 INFO L125 PetriNetUnfolderBase]: For 1297/1321 co-relation queries the response was YES. [2023-08-26 21:24:16,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2878 conditions, 819 events. 470/819 cut-off events. For 1297/1321 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4087 event pairs, 40 based on Foata normal form. 16/790 useless extension candidates. Maximal degree in co-relation 2860. Up to 303 conditions per place. [2023-08-26 21:24:16,615 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 53 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2023-08-26 21:24:16,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 66 transitions, 463 flow [2023-08-26 21:24:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 353 transitions. [2023-08-26 21:24:16,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930167597765363 [2023-08-26 21:24:16,617 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 353 transitions. [2023-08-26 21:24:16,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 353 transitions. [2023-08-26 21:24:16,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:16,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 353 transitions. [2023-08-26 21:24:16,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,621 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,621 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 177 flow. Second operand 4 states and 353 transitions. [2023-08-26 21:24:16,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 66 transitions, 463 flow [2023-08-26 21:24:16,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:16,625 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 216 flow [2023-08-26 21:24:16,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-08-26 21:24:16,626 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-26 21:24:16,626 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 216 flow [2023-08-26 21:24:16,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:16,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:16,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:24:16,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:16,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:16,627 INFO L85 PathProgramCache]: Analyzing trace with hash 342625118, now seen corresponding path program 1 times [2023-08-26 21:24:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179864960] [2023-08-26 21:24:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:16,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:16,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179864960] [2023-08-26 21:24:16,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179864960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:16,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:16,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703240360] [2023-08-26 21:24:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:16,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:16,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:16,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:16,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:16,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:16,917 INFO L124 PetriNetUnfolderBase]: 551/945 cut-off events. [2023-08-26 21:24:16,917 INFO L125 PetriNetUnfolderBase]: For 1667/1667 co-relation queries the response was YES. [2023-08-26 21:24:16,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3763 conditions, 945 events. 551/945 cut-off events. For 1667/1667 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4615 event pairs, 67 based on Foata normal form. 3/924 useless extension candidates. Maximal degree in co-relation 3744. Up to 475 conditions per place. [2023-08-26 21:24:16,924 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 54 selfloop transitions, 17 changer transitions 0/72 dead transitions. [2023-08-26 21:24:16,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 559 flow [2023-08-26 21:24:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-26 21:24:16,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46787709497206703 [2023-08-26 21:24:16,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-26 21:24:16,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-26 21:24:16,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:16,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-26 21:24:16,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,931 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,931 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 216 flow. Second operand 4 states and 335 transitions. [2023-08-26 21:24:16,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 559 flow [2023-08-26 21:24:16,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 532 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:16,938 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 361 flow [2023-08-26 21:24:16,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=361, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2023-08-26 21:24:16,941 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-08-26 21:24:16,943 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 361 flow [2023-08-26 21:24:16,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:16,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:16,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:16,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:24:16,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:16,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:16,945 INFO L85 PathProgramCache]: Analyzing trace with hash 342625149, now seen corresponding path program 1 times [2023-08-26 21:24:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:16,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566252970] [2023-08-26 21:24:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:17,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566252970] [2023-08-26 21:24:17,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566252970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:17,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:17,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:17,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448543260] [2023-08-26 21:24:17,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:17,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:17,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:17,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:17,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:17,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 361 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:17,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:17,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:17,184 INFO L124 PetriNetUnfolderBase]: 534/910 cut-off events. [2023-08-26 21:24:17,184 INFO L125 PetriNetUnfolderBase]: For 2218/2218 co-relation queries the response was YES. [2023-08-26 21:24:17,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3944 conditions, 910 events. 534/910 cut-off events. For 2218/2218 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4410 event pairs, 66 based on Foata normal form. 6/891 useless extension candidates. Maximal degree in co-relation 3922. Up to 436 conditions per place. [2023-08-26 21:24:17,191 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 56 selfloop transitions, 22 changer transitions 0/79 dead transitions. [2023-08-26 21:24:17,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 79 transitions, 706 flow [2023-08-26 21:24:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-26 21:24:17,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46368715083798884 [2023-08-26 21:24:17,193 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-26 21:24:17,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-26 21:24:17,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:17,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-26 21:24:17,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,197 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,197 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 361 flow. Second operand 4 states and 332 transitions. [2023-08-26 21:24:17,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 79 transitions, 706 flow [2023-08-26 21:24:17,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 706 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:24:17,204 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 530 flow [2023-08-26 21:24:17,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=530, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2023-08-26 21:24:17,205 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 18 predicate places. [2023-08-26 21:24:17,205 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 530 flow [2023-08-26 21:24:17,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:17,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:17,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:24:17,206 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:17,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:17,206 INFO L85 PathProgramCache]: Analyzing trace with hash -395673050, now seen corresponding path program 1 times [2023-08-26 21:24:17,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:17,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306354831] [2023-08-26 21:24:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:17,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306354831] [2023-08-26 21:24:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306354831] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:17,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602948852] [2023-08-26 21:24:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:17,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:17,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:17,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:17,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:17,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:17,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:17,496 INFO L124 PetriNetUnfolderBase]: 739/1253 cut-off events. [2023-08-26 21:24:17,496 INFO L125 PetriNetUnfolderBase]: For 5756/5812 co-relation queries the response was YES. [2023-08-26 21:24:17,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5728 conditions, 1253 events. 739/1253 cut-off events. For 5756/5812 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 6594 event pairs, 120 based on Foata normal form. 53/1247 useless extension candidates. Maximal degree in co-relation 5701. Up to 513 conditions per place. [2023-08-26 21:24:17,507 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 76 selfloop transitions, 5 changer transitions 3/94 dead transitions. [2023-08-26 21:24:17,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 94 transitions, 1000 flow [2023-08-26 21:24:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:17,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2023-08-26 21:24:17,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888268156424581 [2023-08-26 21:24:17,509 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2023-08-26 21:24:17,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2023-08-26 21:24:17,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:17,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2023-08-26 21:24:17,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,512 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,512 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 530 flow. Second operand 4 states and 350 transitions. [2023-08-26 21:24:17,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 94 transitions, 1000 flow [2023-08-26 21:24:17,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 991 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:24:17,524 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 585 flow [2023-08-26 21:24:17,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=585, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2023-08-26 21:24:17,526 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 22 predicate places. [2023-08-26 21:24:17,527 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 585 flow [2023-08-26 21:24:17,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:17,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:17,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 21:24:17,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:17,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash 608473671, now seen corresponding path program 1 times [2023-08-26 21:24:17,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316332728] [2023-08-26 21:24:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:17,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316332728] [2023-08-26 21:24:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316332728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:17,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:17,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:24:17,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552583152] [2023-08-26 21:24:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:17,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:24:17,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:24:17,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:24:17,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:17,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 585 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:17,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:17,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:17,792 INFO L124 PetriNetUnfolderBase]: 692/1166 cut-off events. [2023-08-26 21:24:17,792 INFO L125 PetriNetUnfolderBase]: For 4854/4854 co-relation queries the response was YES. [2023-08-26 21:24:17,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5798 conditions, 1166 events. 692/1166 cut-off events. For 4854/4854 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5743 event pairs, 183 based on Foata normal form. 2/1137 useless extension candidates. Maximal degree in co-relation 5768. Up to 511 conditions per place. [2023-08-26 21:24:17,802 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 72 selfloop transitions, 16 changer transitions 3/92 dead transitions. [2023-08-26 21:24:17,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 92 transitions, 1077 flow [2023-08-26 21:24:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:24:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:24:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2023-08-26 21:24:17,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45670391061452514 [2023-08-26 21:24:17,804 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 327 transitions. [2023-08-26 21:24:17,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 327 transitions. [2023-08-26 21:24:17,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:17,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 327 transitions. [2023-08-26 21:24:17,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,806 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,806 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 585 flow. Second operand 4 states and 327 transitions. [2023-08-26 21:24:17,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 92 transitions, 1077 flow [2023-08-26 21:24:17,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 1069 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:17,819 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 836 flow [2023-08-26 21:24:17,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=836, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2023-08-26 21:24:17,820 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2023-08-26 21:24:17,820 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 836 flow [2023-08-26 21:24:17,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:17,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:17,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 21:24:17,821 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:17,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1683230710, now seen corresponding path program 1 times [2023-08-26 21:24:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:17,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799440466] [2023-08-26 21:24:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:17,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:17,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799440466] [2023-08-26 21:24:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799440466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:17,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:17,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:24:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55297919] [2023-08-26 21:24:17,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:17,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:17,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:17,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 836 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:17,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:17,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:17,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:18,218 INFO L124 PetriNetUnfolderBase]: 876/1523 cut-off events. [2023-08-26 21:24:18,218 INFO L125 PetriNetUnfolderBase]: For 7669/7671 co-relation queries the response was YES. [2023-08-26 21:24:18,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7743 conditions, 1523 events. 876/1523 cut-off events. For 7669/7671 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8467 event pairs, 178 based on Foata normal form. 6/1469 useless extension candidates. Maximal degree in co-relation 7710. Up to 515 conditions per place. [2023-08-26 21:24:18,232 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 80 selfloop transitions, 45 changer transitions 12/138 dead transitions. [2023-08-26 21:24:18,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 138 transitions, 1536 flow [2023-08-26 21:24:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:24:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:24:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 580 transitions. [2023-08-26 21:24:18,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46288906624102155 [2023-08-26 21:24:18,234 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 580 transitions. [2023-08-26 21:24:18,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 580 transitions. [2023-08-26 21:24:18,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:18,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 580 transitions. [2023-08-26 21:24:18,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,238 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,238 INFO L175 Difference]: Start difference. First operand has 60 places, 68 transitions, 836 flow. Second operand 7 states and 580 transitions. [2023-08-26 21:24:18,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 138 transitions, 1536 flow [2023-08-26 21:24:18,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 138 transitions, 1522 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 21:24:18,259 INFO L231 Difference]: Finished difference. Result has 67 places, 74 transitions, 1069 flow [2023-08-26 21:24:18,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1069, PETRI_PLACES=67, PETRI_TRANSITIONS=74} [2023-08-26 21:24:18,260 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 33 predicate places. [2023-08-26 21:24:18,260 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 74 transitions, 1069 flow [2023-08-26 21:24:18,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:18,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:18,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 21:24:18,261 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:18,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2035858144, now seen corresponding path program 2 times [2023-08-26 21:24:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541707504] [2023-08-26 21:24:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:18,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:18,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:18,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541707504] [2023-08-26 21:24:18,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541707504] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:18,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:18,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:18,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711374920] [2023-08-26 21:24:18,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:18,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:18,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:18,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 179 [2023-08-26 21:24:18,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 74 transitions, 1069 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:18,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 179 [2023-08-26 21:24:18,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:18,646 INFO L124 PetriNetUnfolderBase]: 1311/2313 cut-off events. [2023-08-26 21:24:18,646 INFO L125 PetriNetUnfolderBase]: For 14046/14047 co-relation queries the response was YES. [2023-08-26 21:24:18,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12371 conditions, 2313 events. 1311/2313 cut-off events. For 14046/14047 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 14498 event pairs, 164 based on Foata normal form. 5/2204 useless extension candidates. Maximal degree in co-relation 12335. Up to 1231 conditions per place. [2023-08-26 21:24:18,667 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 88 selfloop transitions, 27 changer transitions 9/125 dead transitions. [2023-08-26 21:24:18,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 125 transitions, 1796 flow [2023-08-26 21:24:18,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 414 transitions. [2023-08-26 21:24:18,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46256983240223465 [2023-08-26 21:24:18,669 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 414 transitions. [2023-08-26 21:24:18,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 414 transitions. [2023-08-26 21:24:18,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:18,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 414 transitions. [2023-08-26 21:24:18,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,672 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,672 INFO L175 Difference]: Start difference. First operand has 67 places, 74 transitions, 1069 flow. Second operand 5 states and 414 transitions. [2023-08-26 21:24:18,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 125 transitions, 1796 flow [2023-08-26 21:24:18,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 125 transitions, 1735 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-26 21:24:18,717 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 1382 flow [2023-08-26 21:24:18,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1382, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2023-08-26 21:24:18,717 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 34 predicate places. [2023-08-26 21:24:18,717 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 1382 flow [2023-08-26 21:24:18,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:24:18,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:18,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 21:24:18,718 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:24:18,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:24:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash -583396391, now seen corresponding path program 1 times [2023-08-26 21:24:18,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:24:18,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366012570] [2023-08-26 21:24:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:24:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:24:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:24:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:24:18,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:24:18,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366012570] [2023-08-26 21:24:18,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366012570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:24:18,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:24:18,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:24:18,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540036074] [2023-08-26 21:24:18,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:24:18,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:24:18,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:24:18,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:24:18,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:24:18,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2023-08-26 21:24:18,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 1382 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:24:18,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2023-08-26 21:24:18,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:24:18,964 INFO L124 PetriNetUnfolderBase]: 810/1522 cut-off events. [2023-08-26 21:24:18,964 INFO L125 PetriNetUnfolderBase]: For 16401/16776 co-relation queries the response was YES. [2023-08-26 21:24:18,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8132 conditions, 1522 events. 810/1522 cut-off events. For 16401/16776 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 10269 event pairs, 73 based on Foata normal form. 300/1773 useless extension candidates. Maximal degree in co-relation 8096. Up to 572 conditions per place. [2023-08-26 21:24:18,972 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 0 selfloop transitions, 0 changer transitions 140/140 dead transitions. [2023-08-26 21:24:18,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 140 transitions, 2724 flow [2023-08-26 21:24:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:24:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:24:18,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 421 transitions. [2023-08-26 21:24:18,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47039106145251397 [2023-08-26 21:24:18,974 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 421 transitions. [2023-08-26 21:24:18,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 421 transitions. [2023-08-26 21:24:18,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:24:18,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 421 transitions. [2023-08-26 21:24:18,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,977 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:18,977 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 1382 flow. Second operand 5 states and 421 transitions. [2023-08-26 21:24:18,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 140 transitions, 2724 flow [2023-08-26 21:24:19,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 140 transitions, 2699 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 21:24:19,012 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-26 21:24:19,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-26 21:24:19,012 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2023-08-26 21:24:19,013 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-26 21:24:19,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:24:19,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-26 21:24:19,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-26 21:24:19,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-26 21:24:19,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 21:24:19,018 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:24:19,022 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:24:19,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:24:19,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:24:19 BasicIcfg [2023-08-26 21:24:19,024 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:24:19,025 INFO L158 Benchmark]: Toolchain (without parser) took 7537.30ms. Allocated memory was 360.7MB in the beginning and 522.2MB in the end (delta: 161.5MB). Free memory was 335.6MB in the beginning and 201.9MB in the end (delta: 133.6MB). Peak memory consumption was 295.7MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,025 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 360.7MB. Free memory is still 337.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:24:19,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.63ms. Allocated memory is still 360.7MB. Free memory was 335.3MB in the beginning and 315.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.50ms. Allocated memory is still 360.7MB. Free memory was 315.3MB in the beginning and 313.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,026 INFO L158 Benchmark]: Boogie Preprocessor took 39.20ms. Allocated memory is still 360.7MB. Free memory was 313.2MB in the beginning and 311.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,026 INFO L158 Benchmark]: RCFGBuilder took 405.22ms. Allocated memory is still 360.7MB. Free memory was 311.7MB in the beginning and 295.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,026 INFO L158 Benchmark]: TraceAbstraction took 6621.38ms. Allocated memory was 360.7MB in the beginning and 522.2MB in the end (delta: 161.5MB). Free memory was 295.2MB in the beginning and 201.9MB in the end (delta: 93.3MB). Peak memory consumption was 255.8MB. Max. memory is 16.0GB. [2023-08-26 21:24:19,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 360.7MB. Free memory is still 337.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 395.63ms. Allocated memory is still 360.7MB. Free memory was 335.3MB in the beginning and 315.3MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.50ms. Allocated memory is still 360.7MB. Free memory was 315.3MB in the beginning and 313.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.20ms. Allocated memory is still 360.7MB. Free memory was 313.2MB in the beginning and 311.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 405.22ms. Allocated memory is still 360.7MB. Free memory was 311.7MB in the beginning and 295.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6621.38ms. Allocated memory was 360.7MB in the beginning and 522.2MB in the end (delta: 161.5MB). Free memory was 295.2MB in the beginning and 201.9MB in the end (delta: 93.3MB). Peak memory consumption was 255.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 99 PlacesBefore, 34 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 84 TotalNumberOfCompositions, 6787 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3064, independent: 2852, independent conditional: 0, independent unconditional: 2852, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1258, independent: 1210, independent conditional: 0, independent unconditional: 1210, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3064, independent: 1642, independent conditional: 0, independent unconditional: 1642, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 1258, unknown conditional: 0, unknown unconditional: 1258] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 123 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 247 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 653 IncrementalHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 19 mSDtfsCounter, 653 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1382occurred in iteration=11, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 21:24:19,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...