/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 15:41:49,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 15:41:50,061 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 15:41:50,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 15:41:50,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 15:41:50,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 15:41:50,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 15:41:50,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 15:41:50,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 15:41:50,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 15:41:50,102 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 15:41:50,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 15:41:50,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 15:41:50,103 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 15:41:50,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 15:41:50,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 15:41:50,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 15:41:50,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 15:41:50,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 15:41:50,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 15:41:50,104 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 15:41:50,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 15:41:50,105 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 15:41:50,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 15:41:50,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 15:41:50,106 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 15:41:50,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 15:41:50,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:41:50,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 15:41:50,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 15:41:50,108 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 15:41:50,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 15:41:50,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 15:41:50,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 15:41:50,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 15:41:50,429 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 15:41:50,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-25 15:41:51,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 15:41:51,843 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 15:41:51,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-25 15:41:51,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a50016a6/654dbe987c03461b88c33a2c7a4cdef2/FLAGc980f1903 [2023-08-25 15:41:51,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a50016a6/654dbe987c03461b88c33a2c7a4cdef2 [2023-08-25 15:41:51,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 15:41:51,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 15:41:51,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 15:41:51,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 15:41:51,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 15:41:51,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:41:51" (1/1) ... [2023-08-25 15:41:51,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3253358e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:51, skipping insertion in model container [2023-08-25 15:41:51,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:41:51" (1/1) ... [2023-08-25 15:41:51,941 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 15:41:52,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:41:52,266 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 15:41:52,294 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:41:52,295 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:41:52,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:41:52,345 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:41:52,345 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:41:52,351 INFO L206 MainTranslator]: Completed translation [2023-08-25 15:41:52,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52 WrapperNode [2023-08-25 15:41:52,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 15:41:52,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 15:41:52,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 15:41:52,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 15:41:52,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,391 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-08-25 15:41:52,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 15:41:52,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 15:41:52,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 15:41:52,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 15:41:52,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 15:41:52,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 15:41:52,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 15:41:52,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 15:41:52,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (1/1) ... [2023-08-25 15:41:52,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:41:52,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 15:41:52,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 15:41:52,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 15:41:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 15:41:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 15:41:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 15:41:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 15:41:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 15:41:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 15:41:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 15:41:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 15:41:52,529 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 15:41:52,640 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 15:41:52,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 15:41:52,885 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 15:41:53,001 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 15:41:53,002 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 15:41:53,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:41:53 BoogieIcfgContainer [2023-08-25 15:41:53,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 15:41:53,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 15:41:53,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 15:41:53,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 15:41:53,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:41:51" (1/3) ... [2023-08-25 15:41:53,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c73536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:41:53, skipping insertion in model container [2023-08-25 15:41:53,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:52" (2/3) ... [2023-08-25 15:41:53,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c73536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:41:53, skipping insertion in model container [2023-08-25 15:41:53,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:41:53" (3/3) ... [2023-08-25 15:41:53,034 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2023-08-25 15:41:53,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 15:41:53,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 15:41:53,049 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 15:41:53,104 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 15:41:53,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 196 flow [2023-08-25 15:41:53,193 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-25 15:41:53,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:41:53,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 101 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-25 15:41:53,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 196 flow [2023-08-25 15:41:53,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 91 transitions, 188 flow [2023-08-25 15:41:53,206 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 15:41:53,218 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 91 transitions, 188 flow [2023-08-25 15:41:53,222 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 91 transitions, 188 flow [2023-08-25 15:41:53,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 188 flow [2023-08-25 15:41:53,252 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-25 15:41:53,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:41:53,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-25 15:41:53,255 INFO L119 LiptonReduction]: Number of co-enabled transitions 2184 [2023-08-25 15:41:55,923 INFO L134 LiptonReduction]: Checked pairs total: 6548 [2023-08-25 15:41:55,924 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-25 15:41:55,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 15:41:55,946 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;@b1ea977, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 15:41:55,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-25 15:41:55,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 15:41:55,948 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 15:41:55,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:41:55,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:55,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 15:41:55,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:55,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:55,953 INFO L85 PathProgramCache]: Analyzing trace with hash 463901, now seen corresponding path program 1 times [2023-08-25 15:41:55,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:55,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308010810] [2023-08-25 15:41:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:55,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308010810] [2023-08-25 15:41:56,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308010810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:56,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:56,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:41:56,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096814907] [2023-08-25 15:41:56,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:56,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 15:41:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:56,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 15:41:56,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 15:41:56,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 188 [2023-08-25 15:41:56,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:56,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 188 [2023-08-25 15:41:56,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:56,232 INFO L124 PetriNetUnfolderBase]: 87/160 cut-off events. [2023-08-25 15:41:56,233 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 15:41:56,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 160 events. 87/160 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 480 event pairs, 87 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 324. Up to 161 conditions per place. [2023-08-25 15:41:56,235 INFO L140 encePairwiseOnDemand]: 171/188 looper letters, 12 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2023-08-25 15:41:56,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2023-08-25 15:41:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 15:41:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 15:41:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 158 transitions. [2023-08-25 15:41:56,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42021276595744683 [2023-08-25 15:41:56,247 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 158 transitions. [2023-08-25 15:41:56,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 158 transitions. [2023-08-25 15:41:56,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:56,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 158 transitions. [2023-08-25 15:41:56,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,259 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,261 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 66 flow. Second operand 2 states and 158 transitions. [2023-08-25 15:41:56,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2023-08-25 15:41:56,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:41:56,264 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 28 flow [2023-08-25 15:41:56,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-25 15:41:56,269 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -18 predicate places. [2023-08-25 15:41:56,269 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 28 flow [2023-08-25 15:41:56,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:56,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 15:41:56,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 15:41:56,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:56,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash 936356381, now seen corresponding path program 1 times [2023-08-25 15:41:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:56,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202943409] [2023-08-25 15:41:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:56,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:56,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202943409] [2023-08-25 15:41:56,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202943409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:56,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:56,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:41:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978682194] [2023-08-25 15:41:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:56,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:41:56,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:41:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:41:56,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 188 [2023-08-25 15:41:56,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:56,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 188 [2023-08-25 15:41:56,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:56,426 INFO L124 PetriNetUnfolderBase]: 56/109 cut-off events. [2023-08-25 15:41:56,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:41:56,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 109 events. 56/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 286 event pairs, 17 based on Foata normal form. 4/113 useless extension candidates. Maximal degree in co-relation 228. Up to 84 conditions per place. [2023-08-25 15:41:56,427 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 14 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-08-25 15:41:56,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 68 flow [2023-08-25 15:41:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:41:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:41:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2023-08-25 15:41:56,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36524822695035464 [2023-08-25 15:41:56,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 206 transitions. [2023-08-25 15:41:56,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 206 transitions. [2023-08-25 15:41:56,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:56,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 206 transitions. [2023-08-25 15:41:56,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,433 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 28 flow. Second operand 3 states and 206 transitions. [2023-08-25 15:41:56,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 68 flow [2023-08-25 15:41:56,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 68 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 15:41:56,433 INFO L231 Difference]: Finished difference. Result has 21 places, 12 transitions, 36 flow [2023-08-25 15:41:56,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=12} [2023-08-25 15:41:56,434 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -16 predicate places. [2023-08-25 15:41:56,434 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 36 flow [2023-08-25 15:41:56,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:56,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:41:56,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 15:41:56,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:56,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:56,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1037724751, now seen corresponding path program 1 times [2023-08-25 15:41:56,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:56,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212947502] [2023-08-25 15:41:56,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:56,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:56,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:56,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212947502] [2023-08-25 15:41:56,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212947502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:56,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:56,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:41:56,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956965812] [2023-08-25 15:41:56,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:56,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:41:56,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:41:56,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:41:56,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 188 [2023-08-25 15:41:56,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 12 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 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) [2023-08-25 15:41:56,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:56,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 188 [2023-08-25 15:41:56,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:56,600 INFO L124 PetriNetUnfolderBase]: 54/113 cut-off events. [2023-08-25 15:41:56,601 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-25 15:41:56,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 113 events. 54/113 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 352 event pairs, 19 based on Foata normal form. 12/125 useless extension candidates. Maximal degree in co-relation 259. Up to 40 conditions per place. [2023-08-25 15:41:56,602 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 14 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2023-08-25 15:41:56,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 105 flow [2023-08-25 15:41:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:41:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:41:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2023-08-25 15:41:56,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3617021276595745 [2023-08-25 15:41:56,606 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 272 transitions. [2023-08-25 15:41:56,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 272 transitions. [2023-08-25 15:41:56,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:56,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 272 transitions. [2023-08-25 15:41:56,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,612 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,612 INFO L175 Difference]: Start difference. First operand has 21 places, 12 transitions, 36 flow. Second operand 4 states and 272 transitions. [2023-08-25 15:41:56,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 105 flow [2023-08-25 15:41:56,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 99 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:41:56,614 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 46 flow [2023-08-25 15:41:56,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2023-08-25 15:41:56,615 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -13 predicate places. [2023-08-25 15:41:56,615 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 46 flow [2023-08-25 15:41:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 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) [2023-08-25 15:41:56,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:56,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:41:56,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 15:41:56,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:56,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash 271574721, now seen corresponding path program 1 times [2023-08-25 15:41:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613338873] [2023-08-25 15:41:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:56,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:56,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613338873] [2023-08-25 15:41:56,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613338873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:56,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:41:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115431282] [2023-08-25 15:41:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:56,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:41:56,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:41:56,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:41:56,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 188 [2023-08-25 15:41:56,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:56,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 188 [2023-08-25 15:41:56,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:56,859 INFO L124 PetriNetUnfolderBase]: 16/44 cut-off events. [2023-08-25 15:41:56,860 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-08-25 15:41:56,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 44 events. 16/44 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 6 based on Foata normal form. 5/49 useless extension candidates. Maximal degree in co-relation 126. Up to 29 conditions per place. [2023-08-25 15:41:56,863 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 15 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-25 15:41:56,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 100 flow [2023-08-25 15:41:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:41:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:41:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2023-08-25 15:41:56,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36879432624113473 [2023-08-25 15:41:56,865 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2023-08-25 15:41:56,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2023-08-25 15:41:56,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:56,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2023-08-25 15:41:56,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,868 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 46 flow. Second operand 3 states and 208 transitions. [2023-08-25 15:41:56,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 100 flow [2023-08-25 15:41:56,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 86 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 15:41:56,870 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 53 flow [2023-08-25 15:41:56,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2023-08-25 15:41:56,871 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -14 predicate places. [2023-08-25 15:41:56,872 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 53 flow [2023-08-25 15:41:56,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:56,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:56,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:41:56,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 15:41:56,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:56,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash -270549379, now seen corresponding path program 1 times [2023-08-25 15:41:56,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:56,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020322511] [2023-08-25 15:41:56,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:56,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:57,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:57,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020322511] [2023-08-25 15:41:57,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020322511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:57,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:57,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:41:57,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110977309] [2023-08-25 15:41:57,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:57,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:41:57,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:57,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:41:57,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:41:57,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 188 [2023-08-25 15:41:57,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:57,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 188 [2023-08-25 15:41:57,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:57,164 INFO L124 PetriNetUnfolderBase]: 9/30 cut-off events. [2023-08-25 15:41:57,168 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 15:41:57,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 30 events. 9/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 4 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 92. Up to 16 conditions per place. [2023-08-25 15:41:57,169 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 13 selfloop transitions, 5 changer transitions 0/18 dead transitions. [2023-08-25 15:41:57,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 101 flow [2023-08-25 15:41:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:41:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:41:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions. [2023-08-25 15:41:57,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3603723404255319 [2023-08-25 15:41:57,170 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 271 transitions. [2023-08-25 15:41:57,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 271 transitions. [2023-08-25 15:41:57,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:57,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 271 transitions. [2023-08-25 15:41:57,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,174 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,174 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 53 flow. Second operand 4 states and 271 transitions. [2023-08-25 15:41:57,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 101 flow [2023-08-25 15:41:57,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 93 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 15:41:57,175 INFO L231 Difference]: Finished difference. Result has 25 places, 14 transitions, 62 flow [2023-08-25 15:41:57,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2023-08-25 15:41:57,177 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -12 predicate places. [2023-08-25 15:41:57,178 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 14 transitions, 62 flow [2023-08-25 15:41:57,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:41:57,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:41:57,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 15:41:57,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 15:41:57,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:41:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1929594870, now seen corresponding path program 1 times [2023-08-25 15:41:57,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:41:57,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460099328] [2023-08-25 15:41:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:41:57,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:41:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:41:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:41:57,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:41:57,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460099328] [2023-08-25 15:41:57,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460099328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:41:57,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:41:57,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:41:57,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656265669] [2023-08-25 15:41:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:41:57,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:41:57,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:41:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:41:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:41:57,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 188 [2023-08-25 15:41:57,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 14 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:41:57,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 188 [2023-08-25 15:41:57,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:41:57,267 INFO L124 PetriNetUnfolderBase]: 9/29 cut-off events. [2023-08-25 15:41:57,267 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-25 15:41:57,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 29 events. 9/29 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 93. Up to 18 conditions per place. [2023-08-25 15:41:57,268 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-08-25 15:41:57,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 105 flow [2023-08-25 15:41:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:41:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:41:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2023-08-25 15:41:57,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3497340425531915 [2023-08-25 15:41:57,269 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 263 transitions. [2023-08-25 15:41:57,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 263 transitions. [2023-08-25 15:41:57,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:41:57,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 263 transitions. [2023-08-25 15:41:57,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,272 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,272 INFO L175 Difference]: Start difference. First operand has 25 places, 14 transitions, 62 flow. Second operand 4 states and 263 transitions. [2023-08-25 15:41:57,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 16 transitions, 105 flow [2023-08-25 15:41:57,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 16 transitions, 94 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 15:41:57,273 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-08-25 15:41:57,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-08-25 15:41:57,274 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -12 predicate places. [2023-08-25 15:41:57,274 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-08-25 15:41:57,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:41:57,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2023-08-25 15:41:57,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err5ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2023-08-25 15:41:57,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (12 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2023-08-25 15:41:57,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2023-08-25 15:41:57,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err5ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2023-08-25 15:41:57,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 15:41:57,281 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 15:41:57,285 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 15:41:57,285 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 15:41:57,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:41:57 BasicIcfg [2023-08-25 15:41:57,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 15:41:57,288 INFO L158 Benchmark]: Toolchain (without parser) took 5411.84ms. Allocated memory was 339.7MB in the beginning and 436.2MB in the end (delta: 96.5MB). Free memory was 314.5MB in the beginning and 379.3MB in the end (delta: -64.8MB). Peak memory consumption was 32.3MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,288 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 339.7MB. Free memory is still 316.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:41:57,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.02ms. Allocated memory is still 339.7MB. Free memory was 314.5MB in the beginning and 294.2MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.39ms. Allocated memory is still 339.7MB. Free memory was 294.2MB in the beginning and 292.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,289 INFO L158 Benchmark]: Boogie Preprocessor took 47.57ms. Allocated memory is still 339.7MB. Free memory was 292.1MB in the beginning and 290.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,290 INFO L158 Benchmark]: RCFGBuilder took 561.46ms. Allocated memory is still 339.7MB. Free memory was 290.5MB in the beginning and 267.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,290 INFO L158 Benchmark]: TraceAbstraction took 4258.82ms. Allocated memory was 339.7MB in the beginning and 436.2MB in the end (delta: 96.5MB). Free memory was 316.0MB in the beginning and 379.3MB in the end (delta: -63.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.0GB. [2023-08-25 15:41:57,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 339.7MB. Free memory is still 316.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 473.02ms. Allocated memory is still 339.7MB. Free memory was 314.5MB in the beginning and 294.2MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.39ms. Allocated memory is still 339.7MB. Free memory was 294.2MB in the beginning and 292.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.57ms. Allocated memory is still 339.7MB. Free memory was 292.1MB in the beginning and 290.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 561.46ms. Allocated memory is still 339.7MB. Free memory was 290.5MB in the beginning and 267.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 4258.82ms. Allocated memory was 339.7MB in the beginning and 436.2MB in the end (delta: 96.5MB). Free memory was 316.0MB in the beginning and 379.3MB in the end (delta: -63.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 95 PlacesBefore, 37 PlacesAfterwards, 91 TransitionsBefore, 30 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 95 TotalNumberOfCompositions, 6548 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3917, independent: 3752, independent conditional: 0, independent unconditional: 3752, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1283, independent: 1238, independent conditional: 0, independent unconditional: 1238, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3917, independent: 2514, independent conditional: 0, independent unconditional: 2514, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 1283, unknown conditional: 0, unknown unconditional: 1283] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 773]: 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 5 procedures, 117 locations, 30 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: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 0.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 15:41:57,312 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...