/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/safe031_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 16:10:28,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 16:10:28,425 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 16:10:28,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 16:10:28,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 16:10:28,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 16:10:28,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 16:10:28,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 16:10:28,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 16:10:28,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 16:10:28,456 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 16:10:28,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 16:10:28,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 16:10:28,457 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 16:10:28,458 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 16:10:28,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 16:10:28,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 16:10:28,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 16:10:28,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 16:10:28,460 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 16:10:28,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 16:10:28,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:10:28,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 16:10:28,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 16:10:28,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 16:10:28,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 16:10:28,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 16:10:28,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 16:10:28,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 16:10:28,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 16:10:28,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 16:10:28,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 16:10:28,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 16:10:28,701 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 16:10:28,702 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 16:10:28,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2023-08-25 16:10:29,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 16:10:29,848 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 16:10:29,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2023-08-25 16:10:29,860 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b75e6a3/6314b432580f451b99980e26ad4f0150/FLAG84cccdbd1 [2023-08-25 16:10:29,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b75e6a3/6314b432580f451b99980e26ad4f0150 [2023-08-25 16:10:29,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 16:10:29,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 16:10:29,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 16:10:29,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 16:10:29,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 16:10:29,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:29" (1/1) ... [2023-08-25 16:10:29,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ce90d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:29, skipping insertion in model container [2023-08-25 16:10:29,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:29" (1/1) ... [2023-08-25 16:10:29,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 16:10:30,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:10:30,180 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 16:10:30,204 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:10:30,205 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:10:30,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:10:30,249 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:10:30,249 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:10:30,254 INFO L206 MainTranslator]: Completed translation [2023-08-25 16:10:30,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30 WrapperNode [2023-08-25 16:10:30,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 16:10:30,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 16:10:30,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 16:10:30,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 16:10:30,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,304 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2023-08-25 16:10:30,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 16:10:30,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 16:10:30,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 16:10:30,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 16:10:30,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 16:10:30,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 16:10:30,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 16:10:30,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 16:10:30,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (1/1) ... [2023-08-25 16:10:30,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:10:30,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 16:10:30,367 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 16:10:30,385 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 16:10:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 16:10:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 16:10:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 16:10:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 16:10:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 16:10:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 16:10:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 16:10:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 16:10:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 16:10:30,401 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 16:10:30,526 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 16:10:30,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 16:10:30,734 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 16:10:30,822 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 16:10:30,822 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 16:10:30,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:30 BoogieIcfgContainer [2023-08-25 16:10:30,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 16:10:30,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 16:10:30,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 16:10:30,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 16:10:30,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:10:29" (1/3) ... [2023-08-25 16:10:30,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d8e834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:30, skipping insertion in model container [2023-08-25 16:10:30,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:30" (2/3) ... [2023-08-25 16:10:30,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d8e834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:30, skipping insertion in model container [2023-08-25 16:10:30,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:30" (3/3) ... [2023-08-25 16:10:30,829 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2023-08-25 16:10:30,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 16:10:30,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 16:10:30,840 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 16:10:30,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 16:10:30,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 113 transitions, 241 flow [2023-08-25 16:10:30,941 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-08-25 16:10:30,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:10:30,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 3/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 16:10:30,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 113 transitions, 241 flow [2023-08-25 16:10:30,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 110 transitions, 229 flow [2023-08-25 16:10:30,949 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 16:10:30,957 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 110 transitions, 229 flow [2023-08-25 16:10:30,959 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 110 transitions, 229 flow [2023-08-25 16:10:30,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 110 transitions, 229 flow [2023-08-25 16:10:30,990 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-08-25 16:10:30,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:10:30,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 3/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 16:10:30,993 INFO L119 LiptonReduction]: Number of co-enabled transitions 3816 [2023-08-25 16:10:33,959 INFO L134 LiptonReduction]: Checked pairs total: 13644 [2023-08-25 16:10:33,959 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-25 16:10:33,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 16:10:33,979 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;@6304fe0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 16:10:33,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-25 16:10:33,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 16:10:33,981 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 16:10:33,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:10:33,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:33,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 16:10:33,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:33,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:33,985 INFO L85 PathProgramCache]: Analyzing trace with hash 567757, now seen corresponding path program 1 times [2023-08-25 16:10:33,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:33,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821220822] [2023-08-25 16:10:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:33,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:34,104 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 16:10:34,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:34,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821220822] [2023-08-25 16:10:34,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821220822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:34,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:34,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:10:34,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804949628] [2023-08-25 16:10:34,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:34,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 16:10:34,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 16:10:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 16:10:34,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-25 16:10:34,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 16:10:34,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:34,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-25 16:10:34,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:34,264 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 16:10:34,265 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 16:10:34,269 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 3186 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 16:10:34,273 INFO L140 encePairwiseOnDemand]: 200/222 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 16:10:34,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 16:10:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 16:10:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 16:10:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 192 transitions. [2023-08-25 16:10:34,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43243243243243246 [2023-08-25 16:10:34,283 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 192 transitions. [2023-08-25 16:10:34,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 192 transitions. [2023-08-25 16:10:34,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:34,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 192 transitions. [2023-08-25 16:10:34,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 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 16:10:34,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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 16:10:34,294 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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 16:10:34,295 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 89 flow. Second operand 2 states and 192 transitions. [2023-08-25 16:10:34,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 16:10:34,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 16:10:34,298 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 16:10:34,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 16:10:34,302 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -23 predicate places. [2023-08-25 16:10:34,303 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 16:10:34,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 16:10:34,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:34,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:34,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 16:10:34,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:34,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:34,309 INFO L85 PathProgramCache]: Analyzing trace with hash -678455331, now seen corresponding path program 1 times [2023-08-25 16:10:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:34,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136064344] [2023-08-25 16:10:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:34,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:34,439 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 16:10:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136064344] [2023-08-25 16:10:34,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136064344] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:34,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:34,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:10:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063492842] [2023-08-25 16:10:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:34,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:10:34,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:10:34,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:10:34,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:34,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:34,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:34,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:34,501 INFO L124 PetriNetUnfolderBase]: 401/626 cut-off events. [2023-08-25 16:10:34,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:10:34,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 626 events. 401/626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2195 event pairs, 119 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 1294. Up to 547 conditions per place. [2023-08-25 16:10:34,504 INFO L140 encePairwiseOnDemand]: 218/222 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-25 16:10:34,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 112 flow [2023-08-25 16:10:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:10:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:10:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-25 16:10:34,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3783783783783784 [2023-08-25 16:10:34,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-25 16:10:34,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-25 16:10:34,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:34,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-25 16:10:34,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 16:10:34,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,515 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 252 transitions. [2023-08-25 16:10:34,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 112 flow [2023-08-25 16:10:34,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 16:10:34,516 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-25 16:10:34,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-25 16:10:34,517 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -21 predicate places. [2023-08-25 16:10:34,518 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-25 16:10:34,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:34,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:34,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 16:10:34,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:34,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash 442720120, now seen corresponding path program 1 times [2023-08-25 16:10:34,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:34,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61441503] [2023-08-25 16:10:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:34,615 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 16:10:34,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:34,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61441503] [2023-08-25 16:10:34,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61441503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:34,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:34,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:10:34,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441499550] [2023-08-25 16:10:34,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:34,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:10:34,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:34,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:10:34,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:10:34,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:34,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 16:10:34,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:34,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:34,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:34,675 INFO L124 PetriNetUnfolderBase]: 385/604 cut-off events. [2023-08-25 16:10:34,675 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2023-08-25 16:10:34,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 604 events. 385/604 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2242 event pairs, 105 based on Foata normal form. 6/610 useless extension candidates. Maximal degree in co-relation 1422. Up to 559 conditions per place. [2023-08-25 16:10:34,677 INFO L140 encePairwiseOnDemand]: 218/222 looper letters, 29 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-08-25 16:10:34,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 163 flow [2023-08-25 16:10:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:10:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:10:34,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-25 16:10:34,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3813813813813814 [2023-08-25 16:10:34,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-25 16:10:34,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-25 16:10:34,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:34,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-25 16:10:34,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,681 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 254 transitions. [2023-08-25 16:10:34,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 163 flow [2023-08-25 16:10:34,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:10:34,682 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 75 flow [2023-08-25 16:10:34,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2023-08-25 16:10:34,683 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -19 predicate places. [2023-08-25 16:10:34,683 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 75 flow [2023-08-25 16:10:34,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 16:10:34,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:34,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:34,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 16:10:34,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:34,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:34,684 INFO L85 PathProgramCache]: Analyzing trace with hash 837835424, now seen corresponding path program 1 times [2023-08-25 16:10:34,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:34,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425860699] [2023-08-25 16:10:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:34,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:34,829 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 16:10:34,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:34,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425860699] [2023-08-25 16:10:34,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425860699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:34,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:34,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:10:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522437934] [2023-08-25 16:10:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:34,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:10:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:34,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:10:34,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:10:34,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:34,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:34,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:34,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:34,887 INFO L124 PetriNetUnfolderBase]: 253/428 cut-off events. [2023-08-25 16:10:34,887 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2023-08-25 16:10:34,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 428 events. 253/428 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1510 event pairs, 70 based on Foata normal form. 27/455 useless extension candidates. Maximal degree in co-relation 1122. Up to 321 conditions per place. [2023-08-25 16:10:34,889 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 34 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2023-08-25 16:10:34,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 207 flow [2023-08-25 16:10:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:10:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:10:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 16:10:34,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3843843843843844 [2023-08-25 16:10:34,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 16:10:34,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 16:10:34,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:34,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 16:10:34,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,893 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:34,893 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 75 flow. Second operand 3 states and 256 transitions. [2023-08-25 16:10:34,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 207 flow [2023-08-25 16:10:34,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:10:34,909 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 98 flow [2023-08-25 16:10:34,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-08-25 16:10:34,911 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -17 predicate places. [2023-08-25 16:10:34,911 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 98 flow [2023-08-25 16:10:34,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:34,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:34,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:34,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 16:10:34,911 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:34,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 199823730, now seen corresponding path program 1 times [2023-08-25 16:10:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:34,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133436555] [2023-08-25 16:10:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:34,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:34,957 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 16:10:34,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133436555] [2023-08-25 16:10:34,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133436555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:34,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:34,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:10:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402095859] [2023-08-25 16:10:34,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:34,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:10:34,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:10:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:10:34,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:34,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 98 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) [2023-08-25 16:10:34,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:34,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:34,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:35,018 INFO L124 PetriNetUnfolderBase]: 298/522 cut-off events. [2023-08-25 16:10:35,019 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2023-08-25 16:10:35,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 522 events. 298/522 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2044 event pairs, 145 based on Foata normal form. 23/545 useless extension candidates. Maximal degree in co-relation 1546. Up to 367 conditions per place. [2023-08-25 16:10:35,021 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 30 selfloop transitions, 3 changer transitions 1/34 dead transitions. [2023-08-25 16:10:35,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 205 flow [2023-08-25 16:10:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:10:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:10:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 16:10:35,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3768768768768769 [2023-08-25 16:10:35,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 16:10:35,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 16:10:35,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:35,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 16:10:35,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 16:10:35,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:35,024 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:35,024 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 98 flow. Second operand 3 states and 251 transitions. [2023-08-25 16:10:35,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 205 flow [2023-08-25 16:10:35,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:10:35,026 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 105 flow [2023-08-25 16:10:35,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2023-08-25 16:10:35,027 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -15 predicate places. [2023-08-25 16:10:35,028 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 105 flow [2023-08-25 16:10:35,028 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) [2023-08-25 16:10:35,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:35,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:35,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 16:10:35,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:35,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash -288708493, now seen corresponding path program 1 times [2023-08-25 16:10:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433137833] [2023-08-25 16:10:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:35,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:35,125 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 16:10:35,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:35,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433137833] [2023-08-25 16:10:35,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433137833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:35,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:35,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:10:35,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85368455] [2023-08-25 16:10:35,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:35,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:10:35,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:35,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:10:35,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:10:35,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:35,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 16:10:35,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:35,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:35,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:35,183 INFO L124 PetriNetUnfolderBase]: 179/336 cut-off events. [2023-08-25 16:10:35,183 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2023-08-25 16:10:35,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 336 events. 179/336 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1213 event pairs, 52 based on Foata normal form. 38/374 useless extension candidates. Maximal degree in co-relation 995. Up to 120 conditions per place. [2023-08-25 16:10:35,185 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 40 selfloop transitions, 7 changer transitions 2/49 dead transitions. [2023-08-25 16:10:35,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 49 transitions, 304 flow [2023-08-25 16:10:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:10:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:10:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-25 16:10:35,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38513513513513514 [2023-08-25 16:10:35,186 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-25 16:10:35,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-25 16:10:35,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:35,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-25 16:10:35,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:35,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 16:10:35,189 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 16:10:35,189 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 105 flow. Second operand 4 states and 342 transitions. [2023-08-25 16:10:35,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 49 transitions, 304 flow [2023-08-25 16:10:35,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 290 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 16:10:35,192 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 140 flow [2023-08-25 16:10:35,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2023-08-25 16:10:35,194 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -12 predicate places. [2023-08-25 16:10:35,196 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 140 flow [2023-08-25 16:10:35,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 16:10:35,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:35,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:35,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 16:10:35,196 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:35,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1220966408, now seen corresponding path program 1 times [2023-08-25 16:10:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:35,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400391241] [2023-08-25 16:10:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:35,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:35,228 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 16:10:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:35,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400391241] [2023-08-25 16:10:35,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400391241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:35,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:35,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:10:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700588592] [2023-08-25 16:10:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:35,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:10:35,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:35,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:10:35,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:10:35,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:35,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:35,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:35,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:35,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:35,278 INFO L124 PetriNetUnfolderBase]: 217/423 cut-off events. [2023-08-25 16:10:35,279 INFO L125 PetriNetUnfolderBase]: For 539/539 co-relation queries the response was YES. [2023-08-25 16:10:35,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 423 events. 217/423 cut-off events. For 539/539 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1734 event pairs, 88 based on Foata normal form. 7/430 useless extension candidates. Maximal degree in co-relation 1468. Up to 255 conditions per place. [2023-08-25 16:10:35,280 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 34 selfloop transitions, 3 changer transitions 7/44 dead transitions. [2023-08-25 16:10:35,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 322 flow [2023-08-25 16:10:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:10:35,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:10:35,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-25 16:10:35,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37987987987987987 [2023-08-25 16:10:35,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-25 16:10:35,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-25 16:10:35,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:35,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-25 16:10:35,283 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) [2023-08-25 16:10:35,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:35,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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 16:10:35,285 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 140 flow. Second operand 3 states and 253 transitions. [2023-08-25 16:10:35,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 322 flow [2023-08-25 16:10:35,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 296 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-25 16:10:35,288 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 137 flow [2023-08-25 16:10:35,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-25 16:10:35,289 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -11 predicate places. [2023-08-25 16:10:35,289 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 137 flow [2023-08-25 16:10:35,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:35,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:35,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:35,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 16:10:35,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:35,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:35,290 INFO L85 PathProgramCache]: Analyzing trace with hash -168658981, now seen corresponding path program 1 times [2023-08-25 16:10:35,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:35,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432274192] [2023-08-25 16:10:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:35,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:35,379 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 16:10:35,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:35,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432274192] [2023-08-25 16:10:35,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432274192] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:35,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:35,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 16:10:35,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417344213] [2023-08-25 16:10:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:35,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 16:10:35,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:35,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 16:10:35,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 16:10:35,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-25 16:10:35,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 16:10:35,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:35,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-25 16:10:35,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:35,445 INFO L124 PetriNetUnfolderBase]: 187/357 cut-off events. [2023-08-25 16:10:35,445 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2023-08-25 16:10:35,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 357 events. 187/357 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1413 event pairs, 57 based on Foata normal form. 25/382 useless extension candidates. Maximal degree in co-relation 1157. Up to 148 conditions per place. [2023-08-25 16:10:35,447 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 21 selfloop transitions, 10 changer transitions 18/49 dead transitions. [2023-08-25 16:10:35,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 330 flow [2023-08-25 16:10:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 16:10:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 16:10:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 417 transitions. [2023-08-25 16:10:35,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37567567567567567 [2023-08-25 16:10:35,448 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 417 transitions. [2023-08-25 16:10:35,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 417 transitions. [2023-08-25 16:10:35,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:35,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 417 transitions. [2023-08-25 16:10:35,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 16:10:35,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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 16:10:35,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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 16:10:35,451 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 137 flow. Second operand 5 states and 417 transitions. [2023-08-25 16:10:35,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 330 flow [2023-08-25 16:10:35,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 312 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-25 16:10:35,453 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 136 flow [2023-08-25 16:10:35,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2023-08-25 16:10:35,454 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -7 predicate places. [2023-08-25 16:10:35,454 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 136 flow [2023-08-25 16:10:35,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 16:10:35,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:10:35,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:35,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 16:10:35,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 16:10:35,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:10:35,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1936913431, now seen corresponding path program 1 times [2023-08-25 16:10:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:10:35,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043328580] [2023-08-25 16:10:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:10:35,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:10:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:10:35,498 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 16:10:35,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:10:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043328580] [2023-08-25 16:10:35,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043328580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:10:35,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:10:35,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:10:35,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272573922] [2023-08-25 16:10:35,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:10:35,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:10:35,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:10:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:10:35,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:10:35,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 222 [2023-08-25 16:10:35,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:35,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:10:35,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 222 [2023-08-25 16:10:35,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:10:35,531 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-25 16:10:35,531 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2023-08-25 16:10:35,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 55 events. 21/55 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 5 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 210. Up to 32 conditions per place. [2023-08-25 16:10:35,531 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-25 16:10:35,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 28 transitions, 222 flow [2023-08-25 16:10:35,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:10:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:10:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2023-08-25 16:10:35,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.356981981981982 [2023-08-25 16:10:35,532 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 317 transitions. [2023-08-25 16:10:35,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 317 transitions. [2023-08-25 16:10:35,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:10:35,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 317 transitions. [2023-08-25 16:10:35,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 16:10:35,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 16:10:35,534 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 16:10:35,535 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 136 flow. Second operand 4 states and 317 transitions. [2023-08-25 16:10:35,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 28 transitions, 222 flow [2023-08-25 16:10:35,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 176 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-08-25 16:10:35,536 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-08-25 16:10:35,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-08-25 16:10:35,536 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -15 predicate places. [2023-08-25 16:10:35,536 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-08-25 16:10:35,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:10:35,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-25 16:10:35,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-25 16:10:35,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-25 16:10:35,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-25 16:10:35,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-25 16:10:35,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (16 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-25 16:10:35,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-25 16:10:35,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-25 16:10:35,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 16:10:35,544 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:10:35,548 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 16:10:35,548 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 16:10:35,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:10:35 BasicIcfg [2023-08-25 16:10:35,550 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 16:10:35,550 INFO L158 Benchmark]: Toolchain (without parser) took 5674.23ms. Allocated memory was 402.7MB in the beginning and 484.4MB in the end (delta: 81.8MB). Free memory was 377.9MB in the beginning and 257.9MB in the end (delta: 120.0MB). Peak memory consumption was 200.1MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,550 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 402.7MB. Free memory is still 379.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 16:10:35,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.05ms. Allocated memory is still 402.7MB. Free memory was 377.9MB in the beginning and 356.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.20ms. Allocated memory is still 402.7MB. Free memory was 356.3MB in the beginning and 354.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,552 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 402.7MB. Free memory was 354.3MB in the beginning and 352.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,552 INFO L158 Benchmark]: RCFGBuilder took 489.41ms. Allocated memory is still 402.7MB. Free memory was 352.2MB in the beginning and 377.6MB in the end (delta: -25.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,553 INFO L158 Benchmark]: TraceAbstraction took 4724.90ms. Allocated memory was 402.7MB in the beginning and 484.4MB in the end (delta: 81.8MB). Free memory was 377.6MB in the beginning and 257.9MB in the end (delta: 119.7MB). Peak memory consumption was 200.4MB. Max. memory is 16.0GB. [2023-08-25 16:10:35,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 402.7MB. Free memory is still 379.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 378.05ms. Allocated memory is still 402.7MB. Free memory was 377.9MB in the beginning and 356.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.20ms. Allocated memory is still 402.7MB. Free memory was 356.3MB in the beginning and 354.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 402.7MB. Free memory was 354.3MB in the beginning and 352.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 489.41ms. Allocated memory is still 402.7MB. Free memory was 352.2MB in the beginning and 377.6MB in the end (delta: -25.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 4724.90ms. Allocated memory was 402.7MB in the beginning and 484.4MB in the end (delta: 81.8MB). Free memory was 377.6MB in the beginning and 257.9MB in the end (delta: 119.7MB). Peak memory consumption was 200.4MB. 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: 3.0s, 117 PlacesBefore, 49 PlacesAfterwards, 110 TransitionsBefore, 40 TransitionsAfterwards, 3816 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 13644 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6191, independent: 5923, independent conditional: 0, independent unconditional: 5923, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2213, independent: 2138, independent conditional: 0, independent unconditional: 2138, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6191, independent: 3785, independent conditional: 0, independent unconditional: 3785, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 2213, unknown conditional: 0, unknown unconditional: 2213] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 224, Positive conditional cache size: 0, Positive unconditional cache size: 224, 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: 723]: 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: 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: 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: 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: 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, 148 locations, 38 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: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=6, InterpolantAutomatonStates: 30, 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, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 16:10:35,568 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...