/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 03:49:51,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 03:49:51,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 03:49:51,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 03:49:51,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 03:49:51,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 03:49:51,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 03:49:51,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 03:49:51,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 03:49:51,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 03:49:51,999 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 03:49:51,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 03:49:51,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 03:49:51,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 03:49:51,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 03:49:52,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 03:49:52,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 03:49:52,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 03:49:52,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 03:49:52,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 03:49:52,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 03:49:52,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 03:49:52,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 03:49:52,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 03:49:52,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 03:49:52,006 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 03:49:52,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 03:49:52,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 03:49:52,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 03:49:52,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 03:49:52,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 03:49:52,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 03:49:52,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 03:49:52,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 03:49:52,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 03:49:52,008 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 03:49:52,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 03:49:52,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 03:49:52,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 03:49:52,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 03:49:52,249 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 03:49:52,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2023-08-26 03:49:53,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 03:49:53,329 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 03:49:53,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.i [2023-08-26 03:49:53,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a5da937/f23952b0380042a6950b08788dcf3e26/FLAG036236977 [2023-08-26 03:49:53,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a5da937/f23952b0380042a6950b08788dcf3e26 [2023-08-26 03:49:53,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 03:49:53,357 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 03:49:53,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 03:49:53,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 03:49:53,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 03:49:53,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45789513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53, skipping insertion in model container [2023-08-26 03:49:53,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,402 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 03:49:53,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 03:49:53,664 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 03:49:53,688 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 03:49:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 03:49:53,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 03:49:53,731 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 03:49:53,731 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 03:49:53,736 INFO L206 MainTranslator]: Completed translation [2023-08-26 03:49:53,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53 WrapperNode [2023-08-26 03:49:53,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 03:49:53,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 03:49:53,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 03:49:53,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 03:49:53,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,785 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-26 03:49:53,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 03:49:53,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 03:49:53,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 03:49:53,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 03:49:53,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 03:49:53,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 03:49:53,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 03:49:53,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 03:49:53,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (1/1) ... [2023-08-26 03:49:53,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 03:49:53,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 03:49:53,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 03:49:53,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 03:49:53,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 03:49:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 03:49:53,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 03:49:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 03:49:53,875 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 03:49:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 03:49:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 03:49:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 03:49:53,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 03:49:53,877 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 03:49:53,994 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 03:49:53,995 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 03:49:54,246 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 03:49:54,362 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 03:49:54,363 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 03:49:54,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:49:54 BoogieIcfgContainer [2023-08-26 03:49:54,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 03:49:54,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 03:49:54,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 03:49:54,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 03:49:54,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:49:53" (1/3) ... [2023-08-26 03:49:54,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7e2afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:49:54, skipping insertion in model container [2023-08-26 03:49:54,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:49:53" (2/3) ... [2023-08-26 03:49:54,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7e2afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:49:54, skipping insertion in model container [2023-08-26 03:49:54,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:49:54" (3/3) ... [2023-08-26 03:49:54,369 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2023-08-26 03:49:54,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 03:49:54,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-26 03:49:54,379 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 03:49:54,416 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 03:49:54,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-26 03:49:54,470 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-26 03:49:54,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:49:54,474 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 142 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-26 03:49:54,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-26 03:49:54,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-26 03:49:54,479 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 03:49:54,487 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-26 03:49:54,490 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-26 03:49:54,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-26 03:49:54,513 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-26 03:49:54,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:49:54,514 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 145 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-26 03:49:54,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 4128 [2023-08-26 03:49:58,330 INFO L134 LiptonReduction]: Checked pairs total: 14121 [2023-08-26 03:49:58,330 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-26 03:49:58,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 03:49:58,343 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;@23ee1fd7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 03:49:58,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-26 03:49:58,344 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 03:49:58,344 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 03:49:58,344 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:49:58,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:58,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 03:49:58,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:58,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 616274, now seen corresponding path program 1 times [2023-08-26 03:49:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:58,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997024900] [2023-08-26 03:49:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:58,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:58,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997024900] [2023-08-26 03:49:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997024900] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:58,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:58,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:49:58,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221426399] [2023-08-26 03:49:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:58,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 03:49:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:58,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 03:49:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 03:49:58,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 226 [2023-08-26 03:49:58,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:58,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 226 [2023-08-26 03:49:58,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:58,628 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-26 03:49:58,628 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 03:49:58,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3196 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. [2023-08-26 03:49:58,632 INFO L140 encePairwiseOnDemand]: 202/226 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-26 03:49:58,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-26 03:49:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 03:49:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 03:49:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-26 03:49:58,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4336283185840708 [2023-08-26 03:49:58,640 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-26 03:49:58,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-26 03:49:58,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:58,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-26 03:49:58,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,647 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,648 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-26 03:49:58,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-26 03:49:58,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 03:49:58,653 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-26 03:49:58,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, 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} [2023-08-26 03:49:58,656 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-26 03:49:58,657 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-26 03:49:58,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:58,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:58,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 03:49:58,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:58,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1634607894, now seen corresponding path program 1 times [2023-08-26 03:49:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099568936] [2023-08-26 03:49:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:58,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:58,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099568936] [2023-08-26 03:49:58,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099568936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:58,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:58,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:49:58,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874378374] [2023-08-26 03:49:58,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:58,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:49:58,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:58,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:49:58,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:49:58,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 226 [2023-08-26 03:49:58,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:58,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 226 [2023-08-26 03:49:58,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:58,854 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-26 03:49:58,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 03:49:58,856 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 2245 event pairs, 77 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 507 conditions per place. [2023-08-26 03:49:58,858 INFO L140 encePairwiseOnDemand]: 223/226 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-26 03:49:58,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 112 flow [2023-08-26 03:49:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:49:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:49:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-26 03:49:58,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37610619469026546 [2023-08-26 03:49:58,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-26 03:49:58,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-26 03:49:58,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:58,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-26 03:49:58,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,870 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 255 transitions. [2023-08-26 03:49:58,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 112 flow [2023-08-26 03:49:58,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 03:49:58,870 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-26 03:49:58,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, 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} [2023-08-26 03:49:58,872 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-26 03:49:58,872 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-26 03:49:58,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:58,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:58,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 03:49:58,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:58,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash -866763862, now seen corresponding path program 1 times [2023-08-26 03:49:58,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:58,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140429644] [2023-08-26 03:49:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:58,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140429644] [2023-08-26 03:49:58,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140429644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:58,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:58,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:49:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226928712] [2023-08-26 03:49:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:49:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:58,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:49:58,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:49:58,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 226 [2023-08-26 03:49:58,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:58,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:58,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 226 [2023-08-26 03:49:58,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,029 INFO L124 PetriNetUnfolderBase]: 407/660 cut-off events. [2023-08-26 03:49:59,029 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-26 03:49:59,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1484 conditions, 660 events. 407/660 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2708 event pairs, 135 based on Foata normal form. 48/708 useless extension candidates. Maximal degree in co-relation 1479. Up to 233 conditions per place. [2023-08-26 03:49:59,031 INFO L140 encePairwiseOnDemand]: 222/226 looper letters, 29 selfloop transitions, 3 changer transitions 5/37 dead transitions. [2023-08-26 03:49:59,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 171 flow [2023-08-26 03:49:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:49:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:49:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2023-08-26 03:49:59,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-08-26 03:49:59,033 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2023-08-26 03:49:59,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2023-08-26 03:49:59,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2023-08-26 03:49:59,034 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) [2023-08-26 03:49:59,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,036 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,036 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 4 states and 339 transitions. [2023-08-26 03:49:59,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 171 flow [2023-08-26 03:49:59,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 03:49:59,038 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-26 03:49:59,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, 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} [2023-08-26 03:49:59,039 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-26 03:49:59,039 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-26 03:49:59,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:59,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 03:49:59,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:59,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash 240636872, now seen corresponding path program 1 times [2023-08-26 03:49:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67720239] [2023-08-26 03:49:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:59,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:59,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67720239] [2023-08-26 03:49:59,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67720239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:59,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:59,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 03:49:59,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196687208] [2023-08-26 03:49:59,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:59,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:49:59,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:59,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:49:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:49:59,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 226 [2023-08-26 03:49:59,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 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) [2023-08-26 03:49:59,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:59,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 226 [2023-08-26 03:49:59,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,156 INFO L124 PetriNetUnfolderBase]: 167/288 cut-off events. [2023-08-26 03:49:59,157 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2023-08-26 03:49:59,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 288 events. 167/288 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 870 event pairs, 85 based on Foata normal form. 12/300 useless extension candidates. Maximal degree in co-relation 727. Up to 148 conditions per place. [2023-08-26 03:49:59,158 INFO L140 encePairwiseOnDemand]: 223/226 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-26 03:49:59,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 128 flow [2023-08-26 03:49:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:49:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:49:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-26 03:49:59,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37315634218289084 [2023-08-26 03:49:59,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-26 03:49:59,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-26 03:49:59,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-26 03:49:59,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,161 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 3 states and 253 transitions. [2023-08-26 03:49:59,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 128 flow [2023-08-26 03:49:59,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 111 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-26 03:49:59,163 INFO L231 Difference]: Finished difference. Result has 30 places, 17 transitions, 54 flow [2023-08-26 03:49:59,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=54, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2023-08-26 03:49:59,164 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -22 predicate places. [2023-08-26 03:49:59,164 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 54 flow [2023-08-26 03:49:59,165 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) [2023-08-26 03:49:59,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:59,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:59,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 03:49:59,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:59,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1529519823, now seen corresponding path program 1 times [2023-08-26 03:49:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:59,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000199521] [2023-08-26 03:49:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:59,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:59,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:59,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:59,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000199521] [2023-08-26 03:49:59,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000199521] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:59,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:59,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 03:49:59,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096958027] [2023-08-26 03:49:59,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:59,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:49:59,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:59,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:49:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:49:59,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 226 [2023-08-26 03:49:59,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 54 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) [2023-08-26 03:49:59,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:59,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 226 [2023-08-26 03:49:59,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,292 INFO L124 PetriNetUnfolderBase]: 215/380 cut-off events. [2023-08-26 03:49:59,292 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-26 03:49:59,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 380 events. 215/380 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1442 event pairs, 71 based on Foata normal form. 12/392 useless extension candidates. Maximal degree in co-relation 899. Up to 150 conditions per place. [2023-08-26 03:49:59,294 INFO L140 encePairwiseOnDemand]: 222/226 looper letters, 24 selfloop transitions, 3 changer transitions 11/38 dead transitions. [2023-08-26 03:49:59,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 186 flow [2023-08-26 03:49:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 03:49:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 03:49:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2023-08-26 03:49:59,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3672566371681416 [2023-08-26 03:49:59,296 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2023-08-26 03:49:59,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2023-08-26 03:49:59,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2023-08-26 03:49:59,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,299 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,299 INFO L175 Difference]: Start difference. First operand has 30 places, 17 transitions, 54 flow. Second operand 5 states and 415 transitions. [2023-08-26 03:49:59,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 186 flow [2023-08-26 03:49:59,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 03:49:59,300 INFO L231 Difference]: Finished difference. Result has 36 places, 18 transitions, 76 flow [2023-08-26 03:49:59,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=18} [2023-08-26 03:49:59,302 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-26 03:49:59,302 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 76 flow [2023-08-26 03:49:59,302 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) [2023-08-26 03:49:59,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:59,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:59,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 03:49:59,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:59,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1322683149, now seen corresponding path program 2 times [2023-08-26 03:49:59,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:59,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209728374] [2023-08-26 03:49:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:59,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:59,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209728374] [2023-08-26 03:49:59,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209728374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:59,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:59,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:49:59,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844499078] [2023-08-26 03:49:59,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:59,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:49:59,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:59,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:49:59,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:49:59,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 226 [2023-08-26 03:49:59,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 76 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) [2023-08-26 03:49:59,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:59,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 226 [2023-08-26 03:49:59,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,405 INFO L124 PetriNetUnfolderBase]: 165/298 cut-off events. [2023-08-26 03:49:59,405 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2023-08-26 03:49:59,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 298 events. 165/298 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1070 event pairs, 37 based on Foata normal form. 12/310 useless extension candidates. Maximal degree in co-relation 774. Up to 222 conditions per place. [2023-08-26 03:49:59,407 INFO L140 encePairwiseOnDemand]: 222/226 looper letters, 23 selfloop transitions, 3 changer transitions 3/29 dead transitions. [2023-08-26 03:49:59,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 153 flow [2023-08-26 03:49:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:49:59,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:49:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-26 03:49:59,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36504424778761063 [2023-08-26 03:49:59,408 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-26 03:49:59,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-26 03:49:59,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-26 03:49:59,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,412 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,412 INFO L175 Difference]: Start difference. First operand has 36 places, 18 transitions, 76 flow. Second operand 4 states and 330 transitions. [2023-08-26 03:49:59,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 153 flow [2023-08-26 03:49:59,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 03:49:59,415 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 65 flow [2023-08-26 03:49:59,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=65, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2023-08-26 03:49:59,416 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-26 03:49:59,416 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 17 transitions, 65 flow [2023-08-26 03:49:59,417 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) [2023-08-26 03:49:59,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:59,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:59,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 03:49:59,417 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:59,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1176056668, now seen corresponding path program 1 times [2023-08-26 03:49:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:59,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884484466] [2023-08-26 03:49:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884484466] [2023-08-26 03:49:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884484466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:59,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:49:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104780439] [2023-08-26 03:49:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:59,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 03:49:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 03:49:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 03:49:59,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 226 [2023-08-26 03:49:59,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 17 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:59,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 226 [2023-08-26 03:49:59,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,515 INFO L124 PetriNetUnfolderBase]: 152/279 cut-off events. [2023-08-26 03:49:59,515 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2023-08-26 03:49:59,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 279 events. 152/279 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 933 event pairs, 39 based on Foata normal form. 8/287 useless extension candidates. Maximal degree in co-relation 727. Up to 160 conditions per place. [2023-08-26 03:49:59,516 INFO L140 encePairwiseOnDemand]: 222/226 looper letters, 25 selfloop transitions, 3 changer transitions 3/31 dead transitions. [2023-08-26 03:49:59,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 169 flow [2023-08-26 03:49:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 03:49:59,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 03:49:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-26 03:49:59,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3672566371681416 [2023-08-26 03:49:59,518 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-26 03:49:59,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-26 03:49:59,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-26 03:49:59,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,520 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,520 INFO L175 Difference]: Start difference. First operand has 35 places, 17 transitions, 65 flow. Second operand 4 states and 332 transitions. [2023-08-26 03:49:59,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 169 flow [2023-08-26 03:49:59,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 154 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-26 03:49:59,522 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 63 flow [2023-08-26 03:49:59,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=63, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2023-08-26 03:49:59,522 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-26 03:49:59,522 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 17 transitions, 63 flow [2023-08-26 03:49:59,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 03:49:59,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 03:49:59,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 03:49:59,523 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 03:49:59,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 03:49:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1577778868, now seen corresponding path program 2 times [2023-08-26 03:49:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 03:49:59,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234515177] [2023-08-26 03:49:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 03:49:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 03:49:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 03:49:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 03:49:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 03:49:59,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234515177] [2023-08-26 03:49:59,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234515177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 03:49:59,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 03:49:59,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 03:49:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869213467] [2023-08-26 03:49:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 03:49:59,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 03:49:59,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 03:49:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 03:49:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 03:49:59,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 226 [2023-08-26 03:49:59,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 17 transitions, 63 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) [2023-08-26 03:49:59,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 03:49:59,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 226 [2023-08-26 03:49:59,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 03:49:59,588 INFO L124 PetriNetUnfolderBase]: 100/183 cut-off events. [2023-08-26 03:49:59,588 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2023-08-26 03:49:59,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 183 events. 100/183 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 493 event pairs, 48 based on Foata normal form. 8/191 useless extension candidates. Maximal degree in co-relation 481. Up to 100 conditions per place. [2023-08-26 03:49:59,588 INFO L140 encePairwiseOnDemand]: 224/226 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-26 03:49:59,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 113 flow [2023-08-26 03:49:59,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 03:49:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 03:49:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-26 03:49:59,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687315634218289 [2023-08-26 03:49:59,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-26 03:49:59,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-26 03:49:59,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 03:49:59,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-26 03:49:59,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 03:49:59,591 INFO L175 Difference]: Start difference. First operand has 35 places, 17 transitions, 63 flow. Second operand 3 states and 250 transitions. [2023-08-26 03:49:59,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 113 flow [2023-08-26 03:49:59,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 101 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 03:49:59,592 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2023-08-26 03:49:59,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2023-08-26 03:49:59,593 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-26 03:49:59,594 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2023-08-26 03:49:59,594 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) [2023-08-26 03:49:59,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-26 03:49:59,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-26 03:49:59,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-26 03:49:59,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-26 03:49:59,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-26 03:49:59,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-26 03:49:59,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-26 03:49:59,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-26 03:49:59,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-26 03:49:59,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-26 03:49:59,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 03:49:59,602 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-08-26 03:49:59,606 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 03:49:59,606 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 03:49:59,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:49:59 BasicIcfg [2023-08-26 03:49:59,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 03:49:59,609 INFO L158 Benchmark]: Toolchain (without parser) took 6251.44ms. Allocated memory was 371.2MB in the beginning and 494.9MB in the end (delta: 123.7MB). Free memory was 346.6MB in the beginning and 204.9MB in the end (delta: 141.7MB). Peak memory consumption was 264.7MB. Max. memory is 16.0GB. [2023-08-26 03:49:59,609 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory was 348.6MB in the beginning and 348.6MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 03:49:59,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.03ms. Allocated memory is still 371.2MB. Free memory was 346.2MB in the beginning and 325.6MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 03:49:59,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.42ms. Allocated memory is still 371.2MB. Free memory was 325.6MB in the beginning and 323.5MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 03:49:59,609 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 371.2MB. Free memory was 323.5MB in the beginning and 321.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 03:49:59,611 INFO L158 Benchmark]: RCFGBuilder took 541.41ms. Allocated memory is still 371.2MB. Free memory was 321.8MB in the beginning and 340.8MB in the end (delta: -19.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-26 03:49:59,611 INFO L158 Benchmark]: TraceAbstraction took 5243.11ms. Allocated memory was 371.2MB in the beginning and 494.9MB in the end (delta: 123.7MB). Free memory was 340.0MB in the beginning and 204.9MB in the end (delta: 135.1MB). Peak memory consumption was 258.6MB. Max. memory is 16.0GB. [2023-08-26 03:49:59,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory was 348.6MB in the beginning and 348.6MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 380.03ms. Allocated memory is still 371.2MB. Free memory was 346.2MB in the beginning and 325.6MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.42ms. Allocated memory is still 371.2MB. Free memory was 325.6MB in the beginning and 323.5MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 371.2MB. Free memory was 323.5MB in the beginning and 321.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 541.41ms. Allocated memory is still 371.2MB. Free memory was 321.8MB in the beginning and 340.8MB in the end (delta: -19.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5243.11ms. Allocated memory was 371.2MB in the beginning and 494.9MB in the end (delta: 123.7MB). Free memory was 340.0MB in the beginning and 204.9MB in the end (delta: 135.1MB). Peak memory consumption was 258.6MB. 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: 3.8s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4128 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 109 TotalNumberOfCompositions, 14121 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5851, independent: 5559, independent conditional: 0, independent unconditional: 5559, dependent: 292, dependent conditional: 0, dependent unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2257, independent: 2186, independent conditional: 0, independent unconditional: 2186, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5851, independent: 3373, independent conditional: 0, independent unconditional: 3373, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 2257, unknown conditional: 0, unknown unconditional: 2257] , Statistics on independence cache: Total cache size (in pairs): 298, Positive cache size: 272, Positive conditional cache size: 0, Positive unconditional cache size: 272, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: 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: 791]: 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: 791]: 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: 793]: 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, 43 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 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 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 03:49:59,628 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...