/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/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 20:49:13,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 20:49:13,857 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 20:49:13,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 20:49:13,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 20:49:13,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 20:49:13,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 20:49:13,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 20:49:13,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 20:49:13,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 20:49:13,901 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 20:49:13,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 20:49:13,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 20:49:13,902 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 20:49:13,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 20:49:13,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 20:49:13,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 20:49:13,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 20:49:13,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 20:49:13,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 20:49:13,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 20:49:13,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 20:49:13,905 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 20:49:13,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 20:49:13,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 20:49:13,906 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 20:49:13,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 20:49:13,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 20:49:13,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 20:49:13,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 20:49:13,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 20:49:13,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 20:49:13,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 20:49:13,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 20:49:13,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 20:49:13,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 20:49:14,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 20:49:14,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 20:49:14,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 20:49:14,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 20:49:14,239 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 20:49:14,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2023-08-26 20:49:15,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 20:49:15,609 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 20:49:15,609 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2023-08-26 20:49:15,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d779e2382/598c773b09e44d5eb6b1f4b33da21913/FLAG85ab3b1e8 [2023-08-26 20:49:15,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d779e2382/598c773b09e44d5eb6b1f4b33da21913 [2023-08-26 20:49:15,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 20:49:15,659 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 20:49:15,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 20:49:15,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 20:49:15,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 20:49:15,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:49:15" (1/1) ... [2023-08-26 20:49:15,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7c2e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:15, skipping insertion in model container [2023-08-26 20:49:15,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:49:15" (1/1) ... [2023-08-26 20:49:15,727 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 20:49:16,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 20:49:16,185 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 20:49:16,212 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [133] [2023-08-26 20:49:16,221 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [495] [2023-08-26 20:49:16,221 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [495] [2023-08-26 20:49:16,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 20:49:16,286 INFO L206 MainTranslator]: Completed translation [2023-08-26 20:49:16,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16 WrapperNode [2023-08-26 20:49:16,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 20:49:16,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 20:49:16,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 20:49:16,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 20:49:16,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,329 INFO L138 Inliner]: procedures = 268, calls = 47, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-08-26 20:49:16,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 20:49:16,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 20:49:16,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 20:49:16,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 20:49:16,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 20:49:16,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 20:49:16,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 20:49:16,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 20:49:16,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (1/1) ... [2023-08-26 20:49:16,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 20:49:16,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 20:49:16,398 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 20:49:16,417 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 20:49:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 20:49:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 20:49:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 20:49:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 20:49:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 20:49:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 20:49:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 20:49:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 20:49:16,444 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 20:49:16,558 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 20:49:16,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 20:49:16,837 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 20:49:16,847 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 20:49:16,847 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-26 20:49:16,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:49:16 BoogieIcfgContainer [2023-08-26 20:49:16,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 20:49:16,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 20:49:16,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 20:49:16,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 20:49:16,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:49:15" (1/3) ... [2023-08-26 20:49:16,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e756f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:49:16, skipping insertion in model container [2023-08-26 20:49:16,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:49:16" (2/3) ... [2023-08-26 20:49:16,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e756f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:49:16, skipping insertion in model container [2023-08-26 20:49:16,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:49:16" (3/3) ... [2023-08-26 20:49:16,858 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2023-08-26 20:49:16,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 20:49:16,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-26 20:49:16,875 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 20:49:16,965 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 20:49:17,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 115 transitions, 246 flow [2023-08-26 20:49:17,059 INFO L124 PetriNetUnfolderBase]: 6/113 cut-off events. [2023-08-26 20:49:17,059 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 20:49:17,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 6/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-26 20:49:17,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 115 transitions, 246 flow [2023-08-26 20:49:17,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 101 transitions, 214 flow [2023-08-26 20:49:17,070 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 20:49:17,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 101 transitions, 214 flow [2023-08-26 20:49:17,080 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 101 transitions, 214 flow [2023-08-26 20:49:17,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 101 transitions, 214 flow [2023-08-26 20:49:17,102 INFO L124 PetriNetUnfolderBase]: 4/101 cut-off events. [2023-08-26 20:49:17,102 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 20:49:17,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 4/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-26 20:49:17,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 1292 [2023-08-26 20:49:21,084 INFO L134 LiptonReduction]: Checked pairs total: 3359 [2023-08-26 20:49:21,085 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-26 20:49:21,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 20:49:21,102 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;@7ea5a9a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 20:49:21,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-26 20:49:21,105 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 20:49:21,105 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-08-26 20:49:21,106 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 20:49:21,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:21,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 20:49:21,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:21,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 381289786, now seen corresponding path program 1 times [2023-08-26 20:49:21,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:21,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362703497] [2023-08-26 20:49:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:21,332 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 20:49:21,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362703497] [2023-08-26 20:49:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362703497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:21,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:21,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 20:49:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580373483] [2023-08-26 20:49:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:21,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 20:49:21,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 20:49:21,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 20:49:21,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 189 [2023-08-26 20:49:21,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 74 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 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 20:49:21,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:21,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 189 [2023-08-26 20:49:21,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:21,473 INFO L124 PetriNetUnfolderBase]: 96/219 cut-off events. [2023-08-26 20:49:21,474 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 20:49:21,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 219 events. 96/219 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 959 event pairs, 72 based on Foata normal form. 24/199 useless extension candidates. Maximal degree in co-relation 350. Up to 170 conditions per place. [2023-08-26 20:49:21,478 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 19 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2023-08-26 20:49:21,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 108 flow [2023-08-26 20:49:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 20:49:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 20:49:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 233 transitions. [2023-08-26 20:49:21,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6164021164021164 [2023-08-26 20:49:21,493 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 233 transitions. [2023-08-26 20:49:21,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 233 transitions. [2023-08-26 20:49:21,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:21,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 233 transitions. [2023-08-26 20:49:21,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 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 20:49:21,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 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 20:49:21,509 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 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 20:49:21,510 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 74 flow. Second operand 2 states and 233 transitions. [2023-08-26 20:49:21,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 108 flow [2023-08-26 20:49:21,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 20:49:21,516 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 62 flow [2023-08-26 20:49:21,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2023-08-26 20:49:21,520 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-08-26 20:49:21,520 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 62 flow [2023-08-26 20:49:21,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 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 20:49:21,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:21,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 20:49:21,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 20:49:21,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:21,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1064975980, now seen corresponding path program 1 times [2023-08-26 20:49:21,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:21,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631000545] [2023-08-26 20:49:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:21,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:21,618 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 20:49:21,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:21,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631000545] [2023-08-26 20:49:21,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631000545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:21,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:21,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 20:49:21,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853836924] [2023-08-26 20:49:21,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:21,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 20:49:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:21,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 20:49:21,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 20:49:21,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 189 [2023-08-26 20:49:21,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 20:49:21,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:21,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 189 [2023-08-26 20:49:21,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:21,686 INFO L124 PetriNetUnfolderBase]: 86/174 cut-off events. [2023-08-26 20:49:21,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 20:49:21,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 174 events. 86/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 461 event pairs, 46 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 339. Up to 83 conditions per place. [2023-08-26 20:49:21,688 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 25 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-08-26 20:49:21,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 118 flow [2023-08-26 20:49:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 20:49:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 20:49:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2023-08-26 20:49:21,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485008818342152 [2023-08-26 20:49:21,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2023-08-26 20:49:21,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2023-08-26 20:49:21,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:21,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2023-08-26 20:49:21,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 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 20:49:21,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 20:49:21,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 20:49:21,694 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 62 flow. Second operand 3 states and 311 transitions. [2023-08-26 20:49:21,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 118 flow [2023-08-26 20:49:21,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 20:49:21,696 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 64 flow [2023-08-26 20:49:21,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-26 20:49:21,697 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-08-26 20:49:21,697 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 64 flow [2023-08-26 20:49:21,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 20:49:21,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:21,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:21,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 20:49:21,698 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:21,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1031438794, now seen corresponding path program 1 times [2023-08-26 20:49:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:21,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813781948] [2023-08-26 20:49:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:21,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:21,807 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 20:49:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813781948] [2023-08-26 20:49:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813781948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 20:49:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748697977] [2023-08-26 20:49:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:21,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 20:49:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 20:49:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 20:49:21,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 189 [2023-08-26 20:49:21,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 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 20:49:21,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:21,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 189 [2023-08-26 20:49:21,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:21,875 INFO L124 PetriNetUnfolderBase]: 77/153 cut-off events. [2023-08-26 20:49:21,875 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 20:49:21,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 153 events. 77/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 364 event pairs, 32 based on Foata normal form. 6/153 useless extension candidates. Maximal degree in co-relation 320. Up to 79 conditions per place. [2023-08-26 20:49:21,877 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 27 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-08-26 20:49:21,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 136 flow [2023-08-26 20:49:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 20:49:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 20:49:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2023-08-26 20:49:21,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5132275132275133 [2023-08-26 20:49:21,879 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2023-08-26 20:49:21,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2023-08-26 20:49:21,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:21,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2023-08-26 20:49:21,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 20:49:21,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 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 20:49:21,883 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 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 20:49:21,883 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 64 flow. Second operand 4 states and 388 transitions. [2023-08-26 20:49:21,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 136 flow [2023-08-26 20:49:21,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 20:49:21,885 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 62 flow [2023-08-26 20:49:21,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-26 20:49:21,885 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-08-26 20:49:21,886 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 62 flow [2023-08-26 20:49:21,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 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 20:49:21,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:21,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:21,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 20:49:21,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:21,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash -838295480, now seen corresponding path program 1 times [2023-08-26 20:49:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851949937] [2023-08-26 20:49:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:21,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 20:49:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:22,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851949937] [2023-08-26 20:49:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851949937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:22,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:22,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 20:49:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092034161] [2023-08-26 20:49:22,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:22,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 20:49:22,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 20:49:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 20:49:22,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 189 [2023-08-26 20:49:22,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 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 20:49:22,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:22,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 189 [2023-08-26 20:49:22,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:22,095 INFO L124 PetriNetUnfolderBase]: 24/81 cut-off events. [2023-08-26 20:49:22,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 20:49:22,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 188 event pairs, 8 based on Foata normal form. 10/89 useless extension candidates. Maximal degree in co-relation 161. Up to 34 conditions per place. [2023-08-26 20:49:22,096 INFO L140 encePairwiseOnDemand]: 183/189 looper letters, 15 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2023-08-26 20:49:22,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 111 flow [2023-08-26 20:49:22,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 20:49:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 20:49:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2023-08-26 20:49:22,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2023-08-26 20:49:22,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2023-08-26 20:49:22,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2023-08-26 20:49:22,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:22,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2023-08-26 20:49:22,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 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 20:49:22,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 20:49:22,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 20:49:22,101 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 62 flow. Second operand 3 states and 297 transitions. [2023-08-26 20:49:22,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 111 flow [2023-08-26 20:49:22,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 103 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 20:49:22,102 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 66 flow [2023-08-26 20:49:22,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-26 20:49:22,103 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -5 predicate places. [2023-08-26 20:49:22,103 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 66 flow [2023-08-26 20:49:22,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 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 20:49:22,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:22,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:22,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 20:49:22,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:22,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash -475600271, now seen corresponding path program 1 times [2023-08-26 20:49:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:22,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695475420] [2023-08-26 20:49:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:22,183 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 20:49:22,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:22,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695475420] [2023-08-26 20:49:22,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695475420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:22,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:22,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 20:49:22,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751337383] [2023-08-26 20:49:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:22,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 20:49:22,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:22,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 20:49:22,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-26 20:49:22,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 189 [2023-08-26 20:49:22,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 66 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 20:49:22,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:22,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 189 [2023-08-26 20:49:22,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:22,265 INFO L124 PetriNetUnfolderBase]: 31/84 cut-off events. [2023-08-26 20:49:22,265 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-08-26 20:49:22,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 84 events. 31/84 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 174 event pairs, 10 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 196. Up to 35 conditions per place. [2023-08-26 20:49:22,266 INFO L140 encePairwiseOnDemand]: 183/189 looper letters, 23 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2023-08-26 20:49:22,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 136 flow [2023-08-26 20:49:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 20:49:22,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 20:49:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-26 20:49:22,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47001763668430335 [2023-08-26 20:49:22,270 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-26 20:49:22,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-26 20:49:22,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:22,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-26 20:49:22,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 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 20:49:22,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 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 20:49:22,274 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 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 20:49:22,274 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 66 flow. Second operand 6 states and 533 transitions. [2023-08-26 20:49:22,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 136 flow [2023-08-26 20:49:22,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 20:49:22,276 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 68 flow [2023-08-26 20:49:22,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-08-26 20:49:22,277 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-08-26 20:49:22,277 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 68 flow [2023-08-26 20:49:22,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 20:49:22,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:22,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:22,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 20:49:22,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:22,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash -475600199, now seen corresponding path program 1 times [2023-08-26 20:49:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:22,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101311767] [2023-08-26 20:49:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:22,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:22,338 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 20:49:22,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:22,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101311767] [2023-08-26 20:49:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101311767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:22,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:22,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 20:49:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197934341] [2023-08-26 20:49:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:22,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 20:49:22,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:22,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 20:49:22,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 20:49:22,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 189 [2023-08-26 20:49:22,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 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 20:49:22,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:22,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 189 [2023-08-26 20:49:22,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:22,405 INFO L124 PetriNetUnfolderBase]: 30/81 cut-off events. [2023-08-26 20:49:22,406 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-08-26 20:49:22,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 81 events. 30/81 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 168 event pairs, 22 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 187. Up to 72 conditions per place. [2023-08-26 20:49:22,408 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 20 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-26 20:49:22,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 116 flow [2023-08-26 20:49:22,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 20:49:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 20:49:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2023-08-26 20:49:22,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026455026455027 [2023-08-26 20:49:22,410 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2023-08-26 20:49:22,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2023-08-26 20:49:22,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:22,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2023-08-26 20:49:22,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 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 20:49:22,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 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 20:49:22,415 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 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 20:49:22,415 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 68 flow. Second operand 4 states and 380 transitions. [2023-08-26 20:49:22,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 116 flow [2023-08-26 20:49:22,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 106 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 20:49:22,417 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 62 flow [2023-08-26 20:49:22,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2023-08-26 20:49:22,420 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -5 predicate places. [2023-08-26 20:49:22,420 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 62 flow [2023-08-26 20:49:22,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 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 20:49:22,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 20:49:22,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:22,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 20:49:22,421 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-26 20:49:22,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 20:49:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1945872118, now seen corresponding path program 1 times [2023-08-26 20:49:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 20:49:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863372452] [2023-08-26 20:49:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 20:49:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 20:49:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 20:49:22,639 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 20:49:22,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 20:49:22,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863372452] [2023-08-26 20:49:22,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863372452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 20:49:22,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 20:49:22,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 20:49:22,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478394795] [2023-08-26 20:49:22,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 20:49:22,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 20:49:22,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 20:49:22,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 20:49:22,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-26 20:49:22,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 189 [2023-08-26 20:49:22,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 62 flow. Second operand has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 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 20:49:22,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 20:49:22,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 189 [2023-08-26 20:49:22,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 20:49:22,723 INFO L124 PetriNetUnfolderBase]: 27/75 cut-off events. [2023-08-26 20:49:22,724 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-08-26 20:49:22,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 75 events. 27/75 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 12 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 168. Up to 44 conditions per place. [2023-08-26 20:49:22,724 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-26 20:49:22,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 122 flow [2023-08-26 20:49:22,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 20:49:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 20:49:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2023-08-26 20:49:22,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46825396825396826 [2023-08-26 20:49:22,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2023-08-26 20:49:22,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2023-08-26 20:49:22,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 20:49:22,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2023-08-26 20:49:22,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 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 20:49:22,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 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 20:49:22,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 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 20:49:22,730 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 62 flow. Second operand 6 states and 531 transitions. [2023-08-26 20:49:22,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 122 flow [2023-08-26 20:49:22,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 20:49:22,732 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-08-26 20:49:22,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-08-26 20:49:22,732 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-08-26 20:49:22,732 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-08-26 20:49:22,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 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 20:49:22,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-08-26 20:49:22,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-26 20:49:22,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-26 20:49:22,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-26 20:49:22,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-26 20:49:22,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-08-26 20:49:22,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-26 20:49:22,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-08-26 20:49:22,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-08-26 20:49:22,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-08-26 20:49:22,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-08-26 20:49:22,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 20:49:22,743 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-26 20:49:22,749 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 20:49:22,749 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 20:49:22,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:49:22 BasicIcfg [2023-08-26 20:49:22,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 20:49:22,761 INFO L158 Benchmark]: Toolchain (without parser) took 7102.11ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 352.5MB in the beginning and 232.8MB in the end (delta: 119.7MB). Peak memory consumption was 214.8MB. Max. memory is 16.0GB. [2023-08-26 20:49:22,761 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 377.5MB. Free memory is still 353.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 20:49:22,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.80ms. Allocated memory is still 377.5MB. Free memory was 352.0MB in the beginning and 323.8MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 20:49:22,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.07ms. Allocated memory is still 377.5MB. Free memory was 323.8MB in the beginning and 321.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 20:49:22,762 INFO L158 Benchmark]: Boogie Preprocessor took 26.03ms. Allocated memory is still 377.5MB. Free memory was 321.2MB in the beginning and 319.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 20:49:22,762 INFO L158 Benchmark]: RCFGBuilder took 491.47ms. Allocated memory is still 377.5MB. Free memory was 319.6MB in the beginning and 303.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 20:49:22,762 INFO L158 Benchmark]: TraceAbstraction took 5908.30ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 303.3MB in the beginning and 232.8MB in the end (delta: 70.5MB). Peak memory consumption was 166.6MB. Max. memory is 16.0GB. [2023-08-26 20:49:22,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 377.5MB. Free memory is still 353.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 625.80ms. Allocated memory is still 377.5MB. Free memory was 352.0MB in the beginning and 323.8MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.07ms. Allocated memory is still 377.5MB. Free memory was 323.8MB in the beginning and 321.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.03ms. Allocated memory is still 377.5MB. Free memory was 321.2MB in the beginning and 319.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 491.47ms. Allocated memory is still 377.5MB. Free memory was 319.6MB in the beginning and 303.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5908.30ms. Allocated memory was 377.5MB in the beginning and 471.9MB in the end (delta: 94.4MB). Free memory was 303.3MB in the beginning and 232.8MB in the end (delta: 70.5MB). Peak memory consumption was 166.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 133]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [133] - GenericResultAtLocation [Line: 495]: Unsoundness Warning unspecified type, defaulting to int C: short [495] - GenericResultAtLocation [Line: 495]: Unsoundness Warning unspecified type, defaulting to int C: short [495] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 104 PlacesBefore, 34 PlacesAfterwards, 101 TransitionsBefore, 31 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 3359 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1759, independent: 1621, independent conditional: 0, independent unconditional: 1621, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 682, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1759, independent: 975, independent conditional: 0, independent unconditional: 975, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 682, unknown conditional: 0, unknown unconditional: 682] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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 5 procedures, 148 locations, 11 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: 5.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 8 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 0.7s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 20:49:22,789 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...