/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 15:44:31,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 15:44:31,470 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 [2023-08-25 15:44:31,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 15:44:31,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 15:44:31,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 15:44:31,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 15:44:31,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 15:44:31,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 15:44:31,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 15:44:31,511 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 15:44:31,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 15:44:31,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 15:44:31,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 15:44:31,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 15:44:31,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 15:44:31,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 15:44:31,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 15:44:31,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 15:44:31,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 15:44:31,514 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 15:44:31,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 15:44:31,515 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 15:44:31,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 15:44:31,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 15:44:31,516 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 15:44:31,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 15:44:31,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:44:31,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 15:44:31,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 15:44:31,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 15:44:31,518 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 15:44:31,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 15:44:31,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 15:44:31,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 15:44:31,519 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 15:44:31,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 15:44:31,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 15:44:31,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 15:44:31,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 15:44:31,857 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 15:44:31,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2023-08-25 15:44:33,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 15:44:33,332 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 15:44:33,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2023-08-25 15:44:33,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e528d56b/dacbd2b750c449968c57e8560258ddee/FLAG1dde0daaf [2023-08-25 15:44:33,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e528d56b/dacbd2b750c449968c57e8560258ddee [2023-08-25 15:44:33,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 15:44:33,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 15:44:33,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 15:44:33,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 15:44:33,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 15:44:33,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33, skipping insertion in model container [2023-08-25 15:44:33,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,434 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 15:44:33,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:44:33,764 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 15:44:33,795 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:44:33,796 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:44:33,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:44:33,853 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:44:33,854 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:44:33,859 INFO L206 MainTranslator]: Completed translation [2023-08-25 15:44:33,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33 WrapperNode [2023-08-25 15:44:33,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 15:44:33,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 15:44:33,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 15:44:33,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 15:44:33,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,894 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 103 [2023-08-25 15:44:33,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 15:44:33,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 15:44:33,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 15:44:33,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 15:44:33,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 15:44:33,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 15:44:33,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 15:44:33,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 15:44:33,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (1/1) ... [2023-08-25 15:44:33,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:44:33,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 15:44:33,949 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) [2023-08-25 15:44:33,970 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 [2023-08-25 15:44:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 15:44:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 15:44:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 15:44:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 15:44:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 15:44:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 15:44:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 15:44:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 15:44:33,992 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 15:44:34,102 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 15:44:34,103 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 15:44:34,317 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 15:44:34,463 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 15:44:34,463 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 15:44:34,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:44:34 BoogieIcfgContainer [2023-08-25 15:44:34,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 15:44:34,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 15:44:34,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 15:44:34,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 15:44:34,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:44:33" (1/3) ... [2023-08-25 15:44:34,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1856be9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:44:34, skipping insertion in model container [2023-08-25 15:44:34,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:44:33" (2/3) ... [2023-08-25 15:44:34,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1856be9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:44:34, skipping insertion in model container [2023-08-25 15:44:34,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:44:34" (3/3) ... [2023-08-25 15:44:34,474 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2023-08-25 15:44:34,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 15:44:34,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-25 15:44:34,486 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 15:44:34,528 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 15:44:34,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 15:44:34,616 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 15:44:34,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:44:34,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 15:44:34,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 15:44:34,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 15:44:34,630 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 15:44:34,642 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 15:44:34,648 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 15:44:34,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 15:44:34,684 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 15:44:34,684 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:44:34,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 15:44:34,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 4076 [2023-08-25 15:44:38,664 INFO L134 LiptonReduction]: Checked pairs total: 14510 [2023-08-25 15:44:38,664 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-08-25 15:44:38,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 15:44:38,688 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;@252f6217, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 15:44:38,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-08-25 15:44:38,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 15:44:38,691 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 15:44:38,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:44:38,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:38,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 15:44:38,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:38,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:38,697 INFO L85 PathProgramCache]: Analyzing trace with hash 597342, now seen corresponding path program 1 times [2023-08-25 15:44:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841114644] [2023-08-25 15:44:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:38,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:38,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841114644] [2023-08-25 15:44:38,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841114644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:38,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:38,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:44:38,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117455063] [2023-08-25 15:44:38,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:38,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 15:44:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:38,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 15:44:38,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 15:44:38,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 225 [2023-08-25 15:44:38,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:38,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:38,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 225 [2023-08-25 15:44:38,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:39,017 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 15:44:39,017 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 15:44:39,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3177 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 15:44:39,023 INFO L140 encePairwiseOnDemand]: 201/225 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 15:44:39,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 15:44:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 15:44:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 15:44:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 198 transitions. [2023-08-25 15:44:39,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-25 15:44:39,034 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 198 transitions. [2023-08-25 15:44:39,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 198 transitions. [2023-08-25 15:44:39,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:39,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 198 transitions. [2023-08-25 15:44:39,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,042 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,044 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 93 flow. Second operand 2 states and 198 transitions. [2023-08-25 15:44:39,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 15:44:39,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 15:44:39,047 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 15:44:39,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 15:44:39,051 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -25 predicate places. [2023-08-25 15:44:39,051 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 15:44:39,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:39,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:39,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 15:44:39,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:39,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:39,053 INFO L85 PathProgramCache]: Analyzing trace with hash 801870075, now seen corresponding path program 1 times [2023-08-25 15:44:39,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:39,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825659110] [2023-08-25 15:44:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:39,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:39,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825659110] [2023-08-25 15:44:39,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825659110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:39,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:39,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:44:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906825291] [2023-08-25 15:44:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:39,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:44:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:39,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:44:39,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:44:39,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 225 [2023-08-25 15:44:39,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:39,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 225 [2023-08-25 15:44:39,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:39,295 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-25 15:44:39,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:44:39,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 600 events. 383/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2071 event pairs, 119 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 441 conditions per place. [2023-08-25 15:44:39,300 INFO L140 encePairwiseOnDemand]: 222/225 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 15:44:39,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 102 flow [2023-08-25 15:44:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:44:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:44:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 15:44:39,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37925925925925924 [2023-08-25 15:44:39,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 15:44:39,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 15:44:39,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:39,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 15:44:39,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,312 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 256 transitions. [2023-08-25 15:44:39,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 102 flow [2023-08-25 15:44:39,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 15:44:39,313 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 15:44:39,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 15:44:39,314 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-25 15:44:39,315 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 15:44:39,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:39,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:39,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 15:44:39,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:39,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash -911832430, now seen corresponding path program 1 times [2023-08-25 15:44:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:39,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586037670] [2023-08-25 15:44:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:39,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:39,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586037670] [2023-08-25 15:44:39,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586037670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:39,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:39,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:44:39,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479361300] [2023-08-25 15:44:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:39,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:44:39,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:39,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:44:39,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:44:39,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 225 [2023-08-25 15:44:39,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:39,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 225 [2023-08-25 15:44:39,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:39,561 INFO L124 PetriNetUnfolderBase]: 393/634 cut-off events. [2023-08-25 15:44:39,562 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-25 15:44:39,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 634 events. 393/634 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2420 event pairs, 139 based on Foata normal form. 48/682 useless extension candidates. Maximal degree in co-relation 1399. Up to 220 conditions per place. [2023-08-25 15:44:39,565 INFO L140 encePairwiseOnDemand]: 221/225 looper letters, 25 selfloop transitions, 3 changer transitions 5/33 dead transitions. [2023-08-25 15:44:39,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 151 flow [2023-08-25 15:44:39,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:44:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:44:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2023-08-25 15:44:39,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37666666666666665 [2023-08-25 15:44:39,567 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2023-08-25 15:44:39,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2023-08-25 15:44:39,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:39,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2023-08-25 15:44:39,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,571 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,571 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 4 states and 339 transitions. [2023-08-25 15:44:39,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 151 flow [2023-08-25 15:44:39,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:44:39,574 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 15:44:39,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 15:44:39,575 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -20 predicate places. [2023-08-25 15:44:39,575 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 15:44:39,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:39,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:39,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 15:44:39,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:39,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1163938392, now seen corresponding path program 1 times [2023-08-25 15:44:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014751104] [2023-08-25 15:44:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:39,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014751104] [2023-08-25 15:44:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014751104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:39,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:44:39,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614501279] [2023-08-25 15:44:39,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:44:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:44:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:44:39,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 225 [2023-08-25 15:44:39,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:39,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 225 [2023-08-25 15:44:39,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:39,835 INFO L124 PetriNetUnfolderBase]: 160/284 cut-off events. [2023-08-25 15:44:39,836 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 15:44:39,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 284 events. 160/284 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 904 event pairs, 54 based on Foata normal form. 15/299 useless extension candidates. Maximal degree in co-relation 730. Up to 209 conditions per place. [2023-08-25 15:44:39,837 INFO L140 encePairwiseOnDemand]: 220/225 looper letters, 26 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-25 15:44:39,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 156 flow [2023-08-25 15:44:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:44:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:44:39,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-25 15:44:39,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38814814814814813 [2023-08-25 15:44:39,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-25 15:44:39,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-25 15:44:39,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:39,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-25 15:44:39,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,842 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 3 states and 262 transitions. [2023-08-25 15:44:39,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 156 flow [2023-08-25 15:44:39,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 139 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 15:44:39,844 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 72 flow [2023-08-25 15:44:39,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-08-25 15:44:39,844 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2023-08-25 15:44:39,845 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 72 flow [2023-08-25 15:44:39,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:39,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:39,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:39,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 15:44:39,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:39,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1622078298, now seen corresponding path program 1 times [2023-08-25 15:44:39,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:39,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363361620] [2023-08-25 15:44:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:39,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:39,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:39,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363361620] [2023-08-25 15:44:40,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363361620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:40,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:40,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:44:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902762784] [2023-08-25 15:44:40,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:44:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:40,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:44:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:44:40,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 225 [2023-08-25 15:44:40,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:40,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 225 [2023-08-25 15:44:40,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:40,070 INFO L124 PetriNetUnfolderBase]: 106/202 cut-off events. [2023-08-25 15:44:40,070 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-25 15:44:40,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 202 events. 106/202 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 595 event pairs, 38 based on Foata normal form. 17/219 useless extension candidates. Maximal degree in co-relation 572. Up to 76 conditions per place. [2023-08-25 15:44:40,073 INFO L140 encePairwiseOnDemand]: 220/225 looper letters, 32 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2023-08-25 15:44:40,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 205 flow [2023-08-25 15:44:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:44:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:44:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2023-08-25 15:44:40,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38666666666666666 [2023-08-25 15:44:40,074 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 348 transitions. [2023-08-25 15:44:40,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 348 transitions. [2023-08-25 15:44:40,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:40,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 348 transitions. [2023-08-25 15:44:40,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,078 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,078 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 72 flow. Second operand 4 states and 348 transitions. [2023-08-25 15:44:40,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 205 flow [2023-08-25 15:44:40,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 201 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:44:40,080 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 108 flow [2023-08-25 15:44:40,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-08-25 15:44:40,082 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2023-08-25 15:44:40,082 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 108 flow [2023-08-25 15:44:40,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:40,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:40,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 15:44:40,083 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:40,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:40,083 INFO L85 PathProgramCache]: Analyzing trace with hash -317841122, now seen corresponding path program 1 times [2023-08-25 15:44:40,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:40,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360965683] [2023-08-25 15:44:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:40,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:40,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:40,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360965683] [2023-08-25 15:44:40,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360965683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:40,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:40,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 15:44:40,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520395966] [2023-08-25 15:44:40,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:40,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 15:44:40,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:40,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 15:44:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 15:44:40,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 225 [2023-08-25 15:44:40,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:40,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 225 [2023-08-25 15:44:40,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:40,401 INFO L124 PetriNetUnfolderBase]: 93/176 cut-off events. [2023-08-25 15:44:40,401 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-08-25 15:44:40,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 176 events. 93/176 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 516 event pairs, 36 based on Foata normal form. 7/183 useless extension candidates. Maximal degree in co-relation 541. Up to 76 conditions per place. [2023-08-25 15:44:40,403 INFO L140 encePairwiseOnDemand]: 220/225 looper letters, 29 selfloop transitions, 10 changer transitions 0/39 dead transitions. [2023-08-25 15:44:40,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 229 flow [2023-08-25 15:44:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 15:44:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 15:44:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 425 transitions. [2023-08-25 15:44:40,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-25 15:44:40,405 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 425 transitions. [2023-08-25 15:44:40,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 425 transitions. [2023-08-25 15:44:40,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:40,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 425 transitions. [2023-08-25 15:44:40,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,412 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,412 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 108 flow. Second operand 5 states and 425 transitions. [2023-08-25 15:44:40,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 229 flow [2023-08-25 15:44:40,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 209 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-25 15:44:40,415 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 118 flow [2023-08-25 15:44:40,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-25 15:44:40,417 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-25 15:44:40,417 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 118 flow [2023-08-25 15:44:40,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:40,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:40,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 15:44:40,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:40,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:40,420 INFO L85 PathProgramCache]: Analyzing trace with hash 723754549, now seen corresponding path program 1 times [2023-08-25 15:44:40,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:40,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93855622] [2023-08-25 15:44:40,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:40,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:40,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:40,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93855622] [2023-08-25 15:44:40,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93855622] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:40,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:40,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:44:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926559113] [2023-08-25 15:44:40,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:40,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:44:40,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:40,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:44:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:44:40,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 225 [2023-08-25 15:44:40,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:40,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 225 [2023-08-25 15:44:40,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:40,541 INFO L124 PetriNetUnfolderBase]: 101/197 cut-off events. [2023-08-25 15:44:40,541 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2023-08-25 15:44:40,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 197 events. 101/197 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 668 event pairs, 8 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 640. Up to 140 conditions per place. [2023-08-25 15:44:40,542 INFO L140 encePairwiseOnDemand]: 222/225 looper letters, 26 selfloop transitions, 1 changer transitions 19/46 dead transitions. [2023-08-25 15:44:40,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 344 flow [2023-08-25 15:44:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:44:40,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:44:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2023-08-25 15:44:40,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37444444444444447 [2023-08-25 15:44:40,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2023-08-25 15:44:40,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2023-08-25 15:44:40,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:40,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2023-08-25 15:44:40,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,546 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,547 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 118 flow. Second operand 4 states and 337 transitions. [2023-08-25 15:44:40,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 344 flow [2023-08-25 15:44:40,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 288 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 15:44:40,551 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 99 flow [2023-08-25 15:44:40,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-08-25 15:44:40,552 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-25 15:44:40,552 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 99 flow [2023-08-25 15:44:40,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:44:40,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:40,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 15:44:40,553 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 15:44:40,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:44:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2130286557, now seen corresponding path program 2 times [2023-08-25 15:44:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:44:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087102257] [2023-08-25 15:44:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:44:40,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:44:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:44:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:44:40,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:44:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087102257] [2023-08-25 15:44:40,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087102257] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:44:40,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:44:40,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:44:40,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957417884] [2023-08-25 15:44:40,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:44:40,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:44:40,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:44:40,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:44:40,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:44:40,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 225 [2023-08-25 15:44:40,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:44:40,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 225 [2023-08-25 15:44:40,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:44:40,669 INFO L124 PetriNetUnfolderBase]: 106/210 cut-off events. [2023-08-25 15:44:40,669 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2023-08-25 15:44:40,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 210 events. 106/210 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 698 event pairs, 20 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 657. Up to 108 conditions per place. [2023-08-25 15:44:40,670 INFO L140 encePairwiseOnDemand]: 222/225 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2023-08-25 15:44:40,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 236 flow [2023-08-25 15:44:40,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:44:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:44:40,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-25 15:44:40,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37 [2023-08-25 15:44:40,672 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-25 15:44:40,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-25 15:44:40,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:44:40,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-25 15:44:40,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 225.0) internal successors, (1125), 5 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,674 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 99 flow. Second operand 4 states and 333 transitions. [2023-08-25 15:44:40,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 236 flow [2023-08-25 15:44:40,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:44:40,676 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-25 15:44:40,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-25 15:44:40,678 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-25 15:44:40,678 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-25 15:44:40,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:44:40,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (41 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2023-08-25 15:44:40,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2023-08-25 15:44:40,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2023-08-25 15:44:40,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2023-08-25 15:44:40,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2023-08-25 15:44:40,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2023-08-25 15:44:40,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2023-08-25 15:44:40,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (18 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2023-08-25 15:44:40,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2023-08-25 15:44:40,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2023-08-25 15:44:40,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2023-08-25 15:44:40,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2023-08-25 15:44:40,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2023-08-25 15:44:40,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2023-08-25 15:44:40,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 15:44:40,694 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-08-25 15:44:40,705 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 15:44:40,706 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 15:44:40,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:44:40 BasicIcfg [2023-08-25 15:44:40,708 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 15:44:40,709 INFO L158 Benchmark]: Toolchain (without parser) took 7331.72ms. Allocated memory was 346.0MB in the beginning and 434.1MB in the end (delta: 88.1MB). Free memory was 321.0MB in the beginning and 266.2MB in the end (delta: 54.8MB). Peak memory consumption was 144.4MB. Max. memory is 16.0GB. [2023-08-25 15:44:40,709 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 346.0MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:44:40,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.23ms. Allocated memory is still 346.0MB. Free memory was 320.6MB in the beginning and 300.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 15:44:40,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.42ms. Allocated memory is still 346.0MB. Free memory was 300.0MB in the beginning and 297.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:44:40,709 INFO L158 Benchmark]: Boogie Preprocessor took 23.32ms. Allocated memory is still 346.0MB. Free memory was 297.9MB in the beginning and 296.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:44:40,711 INFO L158 Benchmark]: RCFGBuilder took 545.62ms. Allocated memory is still 346.0MB. Free memory was 296.3MB in the beginning and 315.7MB in the end (delta: -19.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.0GB. [2023-08-25 15:44:40,711 INFO L158 Benchmark]: TraceAbstraction took 6241.80ms. Allocated memory was 346.0MB in the beginning and 434.1MB in the end (delta: 88.1MB). Free memory was 315.7MB in the beginning and 266.2MB in the end (delta: 49.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.0GB. [2023-08-25 15:44:40,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 346.0MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 480.23ms. Allocated memory is still 346.0MB. Free memory was 320.6MB in the beginning and 300.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.42ms. Allocated memory is still 346.0MB. Free memory was 300.0MB in the beginning and 297.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.32ms. Allocated memory is still 346.0MB. Free memory was 297.9MB in the beginning and 296.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 545.62ms. Allocated memory is still 346.0MB. Free memory was 296.3MB in the beginning and 315.7MB in the end (delta: -19.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.0GB. * TraceAbstraction took 6241.80ms. Allocated memory was 346.0MB in the beginning and 434.1MB in the end (delta: 88.1MB). Free memory was 315.7MB in the beginning and 266.2MB in the end (delta: 49.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 121 PlacesBefore, 51 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4076 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 108 TotalNumberOfCompositions, 14510 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6163, independent: 5878, independent conditional: 0, independent unconditional: 5878, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2380, independent: 2325, independent conditional: 0, independent unconditional: 2325, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6163, independent: 3553, independent conditional: 0, independent unconditional: 3553, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 2380, unknown conditional: 0, unknown unconditional: 2380] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 244, Positive conditional cache size: 0, Positive unconditional cache size: 244, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=6, InterpolantAutomatonStates: 29, 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, 0.9s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 15:44:40,732 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...