/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 04:32:32,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 04:32:32,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 04:32:32,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 04:32:32,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 04:32:32,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 04:32:32,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 04:32:32,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 04:32:32,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 04:32:32,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 04:32:32,397 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 04:32:32,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 04:32:32,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 04:32:32,398 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 04:32:32,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 04:32:32,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 04:32:32,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 04:32:32,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 04:32:32,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 04:32:32,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 04:32:32,400 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 04:32:32,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 04:32:32,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 04:32:32,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 04:32:32,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 04:32:32,402 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 04:32:32,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 04:32:32,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 04:32:32,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 04:32:32,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 04:32:32,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 04:32:32,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 04:32:32,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 04:32:32,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 04:32:32,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 04:32:32,404 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 04:32:32,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 04:32:32,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 04:32:32,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 04:32:32,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 04:32:32,720 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 04:32:32,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-08-26 04:32:33,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 04:32:34,151 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 04:32:34,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-08-26 04:32:34,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0821084ef/acfbff085f8e4ec38728b63951ba5058/FLAGa73104254 [2023-08-26 04:32:34,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0821084ef/acfbff085f8e4ec38728b63951ba5058 [2023-08-26 04:32:34,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 04:32:34,185 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 04:32:34,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 04:32:34,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 04:32:34,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 04:32:34,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e481ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34, skipping insertion in model container [2023-08-26 04:32:34,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,243 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 04:32:34,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 04:32:34,575 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 04:32:34,606 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 04:32:34,608 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 04:32:34,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 04:32:34,662 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 04:32:34,663 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 04:32:34,668 INFO L206 MainTranslator]: Completed translation [2023-08-26 04:32:34,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34 WrapperNode [2023-08-26 04:32:34,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 04:32:34,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 04:32:34,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 04:32:34,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 04:32:34,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,727 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 102 [2023-08-26 04:32:34,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 04:32:34,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 04:32:34,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 04:32:34,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 04:32:34,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 04:32:34,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 04:32:34,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 04:32:34,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 04:32:34,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (1/1) ... [2023-08-26 04:32:34,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 04:32:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 04:32:34,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 04:32:34,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 04:32:34,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 04:32:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 04:32:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 04:32:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 04:32:34,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 04:32:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 04:32:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 04:32:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 04:32:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 04:32:34,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 04:32:34,816 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 04:32:34,962 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 04:32:34,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 04:32:35,246 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 04:32:35,382 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 04:32:35,382 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 04:32:35,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:32:35 BoogieIcfgContainer [2023-08-26 04:32:35,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 04:32:35,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 04:32:35,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 04:32:35,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 04:32:35,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 04:32:34" (1/3) ... [2023-08-26 04:32:35,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71032eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:32:35, skipping insertion in model container [2023-08-26 04:32:35,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:32:34" (2/3) ... [2023-08-26 04:32:35,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71032eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:32:35, skipping insertion in model container [2023-08-26 04:32:35,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:32:35" (3/3) ... [2023-08-26 04:32:35,392 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2023-08-26 04:32:35,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 04:32:35,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-26 04:32:35,408 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 04:32:35,453 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 04:32:35,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 245 flow [2023-08-26 04:32:35,546 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-26 04:32:35,547 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 04:32:35,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 123 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-26 04:32:35,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 115 transitions, 245 flow [2023-08-26 04:32:35,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 112 transitions, 233 flow [2023-08-26 04:32:35,559 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 04:32:35,569 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-26 04:32:35,572 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 112 transitions, 233 flow [2023-08-26 04:32:35,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 233 flow [2023-08-26 04:32:35,604 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2023-08-26 04:32:35,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 04:32:35,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 3/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 123 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-26 04:32:35,607 INFO L119 LiptonReduction]: Number of co-enabled transitions 3946 [2023-08-26 04:32:39,321 INFO L134 LiptonReduction]: Checked pairs total: 14338 [2023-08-26 04:32:39,322 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-26 04:32:39,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 04:32:39,338 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;@1aa0d8cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 04:32:39,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-26 04:32:39,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 04:32:39,340 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-26 04:32:39,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 04:32:39,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:39,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 04:32:39,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:39,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash 579626, now seen corresponding path program 1 times [2023-08-26 04:32:39,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:39,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309954653] [2023-08-26 04:32:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:39,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:39,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:39,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309954653] [2023-08-26 04:32:39,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309954653] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:39,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:39,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 04:32:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544607457] [2023-08-26 04:32:39,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:39,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 04:32:39,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:39,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 04:32:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 04:32:39,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 222 [2023-08-26 04:32:39,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:39,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 222 [2023-08-26 04:32:39,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:39,645 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-26 04:32:39,645 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-26 04:32:39,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3164 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-26 04:32:39,651 INFO L140 encePairwiseOnDemand]: 199/222 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-26 04:32:39,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-26 04:32:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 04:32:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 04:32:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 195 transitions. [2023-08-26 04:32:39,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4391891891891892 [2023-08-26 04:32:39,662 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 195 transitions. [2023-08-26 04:32:39,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 195 transitions. [2023-08-26 04:32:39,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:39,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 195 transitions. [2023-08-26 04:32:39,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,670 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) [2023-08-26 04:32:39,671 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) [2023-08-26 04:32:39,672 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 91 flow. Second operand 2 states and 195 transitions. [2023-08-26 04:32:39,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-26 04:32:39,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 04:32:39,675 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-26 04:32:39,677 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} [2023-08-26 04:32:39,680 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -24 predicate places. [2023-08-26 04:32:39,680 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-26 04:32:39,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:39,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:39,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 04:32:39,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:39,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash 372847395, now seen corresponding path program 1 times [2023-08-26 04:32:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:39,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507527723] [2023-08-26 04:32:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:39,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:39,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:39,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507527723] [2023-08-26 04:32:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507527723] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:39,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 04:32:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292596426] [2023-08-26 04:32:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:39,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 04:32:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 04:32:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 04:32:39,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:39,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:39,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:39,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:39,897 INFO L124 PetriNetUnfolderBase]: 401/626 cut-off events. [2023-08-26 04:32:39,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 04:32:39,898 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 38. Compared 2335 event pairs, 111 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 1294. Up to 581 conditions per place. [2023-08-26 04:32:39,901 INFO L140 encePairwiseOnDemand]: 218/222 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-26 04:32:39,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 122 flow [2023-08-26 04:32:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 04:32:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 04:32:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-26 04:32:39,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3858858858858859 [2023-08-26 04:32:39,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-26 04:32:39,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-26 04:32:39,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:39,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-26 04:32:39,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,907 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) [2023-08-26 04:32:39,908 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) [2023-08-26 04:32:39,908 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 257 transitions. [2023-08-26 04:32:39,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 122 flow [2023-08-26 04:32:39,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 04:32:39,909 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-26 04:32:39,910 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} [2023-08-26 04:32:39,910 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -22 predicate places. [2023-08-26 04:32:39,910 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-26 04:32:39,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:39,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:39,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 04:32:39,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:39,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1326633638, now seen corresponding path program 1 times [2023-08-26 04:32:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16323595] [2023-08-26 04:32:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:39,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16323595] [2023-08-26 04:32:39,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16323595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:39,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:39,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 04:32:39,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949770584] [2023-08-26 04:32:39,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:39,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 04:32:39,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:39,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 04:32:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 04:32:39,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:39,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:39,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:39,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:39,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:40,072 INFO L124 PetriNetUnfolderBase]: 372/585 cut-off events. [2023-08-26 04:32:40,072 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-08-26 04:32:40,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 585 events. 372/585 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2001 event pairs, 115 based on Foata normal form. 12/597 useless extension candidates. Maximal degree in co-relation 1385. Up to 426 conditions per place. [2023-08-26 04:32:40,076 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-26 04:32:40,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 128 flow [2023-08-26 04:32:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 04:32:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 04:32:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-26 04:32:40,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37987987987987987 [2023-08-26 04:32:40,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-26 04:32:40,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-26 04:32:40,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:40,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-26 04:32:40,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,083 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) [2023-08-26 04:32:40,084 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) [2023-08-26 04:32:40,084 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 253 transitions. [2023-08-26 04:32:40,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 128 flow [2023-08-26 04:32:40,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 04:32:40,086 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 64 flow [2023-08-26 04:32:40,086 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-26 04:32:40,087 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -20 predicate places. [2023-08-26 04:32:40,087 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 64 flow [2023-08-26 04:32:40,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:40,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:40,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 04:32:40,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:40,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:40,089 INFO L85 PathProgramCache]: Analyzing trace with hash 201987720, now seen corresponding path program 1 times [2023-08-26 04:32:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734361015] [2023-08-26 04:32:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:40,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:40,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:40,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734361015] [2023-08-26 04:32:40,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734361015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:40,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:40,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 04:32:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11743967] [2023-08-26 04:32:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:40,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 04:32:40,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 04:32:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 04:32:40,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-26 04:32:40,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:40,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-26 04:32:40,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:40,326 INFO L124 PetriNetUnfolderBase]: 388/627 cut-off events. [2023-08-26 04:32:40,326 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2023-08-26 04:32:40,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 627 events. 388/627 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2407 event pairs, 129 based on Foata normal form. 44/671 useless extension candidates. Maximal degree in co-relation 1518. Up to 220 conditions per place. [2023-08-26 04:32:40,329 INFO L140 encePairwiseOnDemand]: 218/222 looper letters, 27 selfloop transitions, 3 changer transitions 9/39 dead transitions. [2023-08-26 04:32:40,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 203 flow [2023-08-26 04:32:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 04:32:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 04:32:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-26 04:32:40,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37725225225225223 [2023-08-26 04:32:40,331 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-26 04:32:40,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-26 04:32:40,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:40,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-26 04:32:40,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,334 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) [2023-08-26 04:32:40,334 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) [2023-08-26 04:32:40,334 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 64 flow. Second operand 4 states and 335 transitions. [2023-08-26 04:32:40,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 203 flow [2023-08-26 04:32:40,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 04:32:40,337 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 74 flow [2023-08-26 04:32:40,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-08-26 04:32:40,338 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -17 predicate places. [2023-08-26 04:32:40,338 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 74 flow [2023-08-26 04:32:40,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:40,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:40,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 04:32:40,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:40,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash -559504058, now seen corresponding path program 1 times [2023-08-26 04:32:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:40,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411476813] [2023-08-26 04:32:40,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:40,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:40,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:40,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411476813] [2023-08-26 04:32:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411476813] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:40,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:40,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 04:32:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961847041] [2023-08-26 04:32:40,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:40,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 04:32:40,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 04:32:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 04:32:40,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:40,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:40,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:40,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:40,581 INFO L124 PetriNetUnfolderBase]: 158/281 cut-off events. [2023-08-26 04:32:40,581 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2023-08-26 04:32:40,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 281 events. 158/281 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 894 event pairs, 53 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 784. Up to 206 conditions per place. [2023-08-26 04:32:40,584 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 30 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-26 04:32:40,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 192 flow [2023-08-26 04:32:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 04:32:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 04:32:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-26 04:32:40,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2023-08-26 04:32:40,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-26 04:32:40,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-26 04:32:40,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:40,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-26 04:32:40,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,589 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) [2023-08-26 04:32:40,589 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) [2023-08-26 04:32:40,589 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 74 flow. Second operand 3 states and 259 transitions. [2023-08-26 04:32:40,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 192 flow [2023-08-26 04:32:40,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 175 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-26 04:32:40,592 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 88 flow [2023-08-26 04:32:40,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-26 04:32:40,594 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -18 predicate places. [2023-08-26 04:32:40,594 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 88 flow [2023-08-26 04:32:40,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:40,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:40,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 04:32:40,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:40,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:40,595 INFO L85 PathProgramCache]: Analyzing trace with hash -763415194, now seen corresponding path program 1 times [2023-08-26 04:32:40,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:40,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128181958] [2023-08-26 04:32:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:40,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:40,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128181958] [2023-08-26 04:32:40,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128181958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:40,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:40,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 04:32:40,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124755033] [2023-08-26 04:32:40,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:40,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 04:32:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 04:32:40,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 04:32:40,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:40,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 88 flow. Second operand has 4 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) [2023-08-26 04:32:40,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:40,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:40,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:40,783 INFO L124 PetriNetUnfolderBase]: 106/202 cut-off events. [2023-08-26 04:32:40,783 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-08-26 04:32:40,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 202 events. 106/202 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 598 event pairs, 37 based on Foata normal form. 17/219 useless extension candidates. Maximal degree in co-relation 612. Up to 76 conditions per place. [2023-08-26 04:32:40,784 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2023-08-26 04:32:40,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 245 flow [2023-08-26 04:32:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 04:32:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 04:32:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-26 04:32:40,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38738738738738737 [2023-08-26 04:32:40,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-26 04:32:40,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-26 04:32:40,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:40,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-26 04:32:40,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,789 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) [2023-08-26 04:32:40,790 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) [2023-08-26 04:32:40,790 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 88 flow. Second operand 4 states and 344 transitions. [2023-08-26 04:32:40,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 245 flow [2023-08-26 04:32:40,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 04:32:40,793 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 124 flow [2023-08-26 04:32:40,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2023-08-26 04:32:40,795 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -15 predicate places. [2023-08-26 04:32:40,798 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 124 flow [2023-08-26 04:32:40,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-08-26 04:32:40,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:40,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:40,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 04:32:40,799 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:40,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1970404225, now seen corresponding path program 1 times [2023-08-26 04:32:40,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:40,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980593591] [2023-08-26 04:32:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:40,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:40,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:40,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980593591] [2023-08-26 04:32:40,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980593591] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:40,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:40,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 04:32:40,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612062370] [2023-08-26 04:32:40,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:40,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 04:32:40,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:40,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 04:32:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 04:32:40,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:40,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:40,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:40,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:40,887 INFO L124 PetriNetUnfolderBase]: 116/230 cut-off events. [2023-08-26 04:32:40,887 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 04:32:40,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 230 events. 116/230 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 720 event pairs, 76 based on Foata normal form. 6/236 useless extension candidates. Maximal degree in co-relation 777. Up to 186 conditions per place. [2023-08-26 04:32:40,889 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 28 selfloop transitions, 3 changer transitions 5/36 dead transitions. [2023-08-26 04:32:40,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 264 flow [2023-08-26 04:32:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 04:32:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 04:32:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-26 04:32:40,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3783783783783784 [2023-08-26 04:32:40,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-26 04:32:40,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-26 04:32:40,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:40,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-26 04:32:40,891 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) [2023-08-26 04:32:40,894 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) [2023-08-26 04:32:40,894 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) [2023-08-26 04:32:40,894 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 124 flow. Second operand 3 states and 252 transitions. [2023-08-26 04:32:40,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 264 flow [2023-08-26 04:32:40,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 238 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-26 04:32:40,900 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 121 flow [2023-08-26 04:32:40,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-26 04:32:40,901 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -14 predicate places. [2023-08-26 04:32:40,901 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 121 flow [2023-08-26 04:32:40,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:40,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:40,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:40,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 04:32:40,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:40,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:40,903 INFO L85 PathProgramCache]: Analyzing trace with hash 464575799, now seen corresponding path program 1 times [2023-08-26 04:32:40,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:40,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340798785] [2023-08-26 04:32:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:40,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:41,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:41,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340798785] [2023-08-26 04:32:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340798785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 04:32:41,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916103692] [2023-08-26 04:32:41,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 04:32:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 04:32:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-26 04:32:41,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 222 [2023-08-26 04:32:41,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:41,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:41,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 222 [2023-08-26 04:32:41,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:41,088 INFO L124 PetriNetUnfolderBase]: 101/197 cut-off events. [2023-08-26 04:32:41,088 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-08-26 04:32:41,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 197 events. 101/197 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 601 event pairs, 35 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 619. Up to 78 conditions per place. [2023-08-26 04:32:41,089 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 21 selfloop transitions, 10 changer transitions 12/43 dead transitions. [2023-08-26 04:32:41,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 281 flow [2023-08-26 04:32:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 04:32:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 04:32:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 420 transitions. [2023-08-26 04:32:41,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3783783783783784 [2023-08-26 04:32:41,091 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 420 transitions. [2023-08-26 04:32:41,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 420 transitions. [2023-08-26 04:32:41,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:41,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 420 transitions. [2023-08-26 04:32:41,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:41,094 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) [2023-08-26 04:32:41,094 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) [2023-08-26 04:32:41,094 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 121 flow. Second operand 5 states and 420 transitions. [2023-08-26 04:32:41,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 281 flow [2023-08-26 04:32:41,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 259 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-26 04:32:41,096 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 128 flow [2023-08-26 04:32:41,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-26 04:32:41,098 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2023-08-26 04:32:41,098 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 128 flow [2023-08-26 04:32:41,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:41,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 04:32:41,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:41,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 04:32:41,099 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-26 04:32:41,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 04:32:41,102 INFO L85 PathProgramCache]: Analyzing trace with hash 756193095, now seen corresponding path program 1 times [2023-08-26 04:32:41,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 04:32:41,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405968968] [2023-08-26 04:32:41,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 04:32:41,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 04:32:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 04:32:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 04:32:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 04:32:41,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405968968] [2023-08-26 04:32:41,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405968968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 04:32:41,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 04:32:41,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 04:32:41,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217178836] [2023-08-26 04:32:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 04:32:41,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 04:32:41,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 04:32:41,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 04:32:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 04:32:41,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 222 [2023-08-26 04:32:41,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 128 flow. Second operand has 4 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) [2023-08-26 04:32:41,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 04:32:41,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 222 [2023-08-26 04:32:41,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 04:32:41,199 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-26 04:32:41,199 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2023-08-26 04:32:41,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 55 events. 21/55 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 5 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 204. Up to 32 conditions per place. [2023-08-26 04:32:41,200 INFO L140 encePairwiseOnDemand]: 219/222 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-26 04:32:41,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 216 flow [2023-08-26 04:32:41,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 04:32:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 04:32:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-08-26 04:32:41,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3614864864864865 [2023-08-26 04:32:41,201 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-08-26 04:32:41,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-08-26 04:32:41,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 04:32:41,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-08-26 04:32:41,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 04:32:41,204 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) [2023-08-26 04:32:41,204 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) [2023-08-26 04:32:41,204 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 128 flow. Second operand 4 states and 321 transitions. [2023-08-26 04:32:41,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 216 flow [2023-08-26 04:32:41,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 176 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-26 04:32:41,206 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-08-26 04:32:41,206 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} [2023-08-26 04:32:41,207 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -16 predicate places. [2023-08-26 04:32:41,207 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-08-26 04:32:41,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-08-26 04:32:41,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-08-26 04:32:41,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-08-26 04:32:41,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-08-26 04:32:41,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-08-26 04:32:41,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-08-26 04:32:41,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-08-26 04:32:41,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-08-26 04:32:41,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-08-26 04:32:41,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-08-26 04:32:41,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-08-26 04:32:41,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-08-26 04:32:41,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-08-26 04:32:41,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-08-26 04:32:41,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (17 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-08-26 04:32:41,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-08-26 04:32:41,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-08-26 04:32:41,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-08-26 04:32:41,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-08-26 04:32:41,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-08-26 04:32:41,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 04:32:41,217 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 04:32:41,221 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 04:32:41,221 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 04:32:41,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 04:32:41 BasicIcfg [2023-08-26 04:32:41,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 04:32:41,225 INFO L158 Benchmark]: Toolchain (without parser) took 7039.95ms. Allocated memory was 360.7MB in the beginning and 497.0MB in the end (delta: 136.3MB). Free memory was 335.5MB in the beginning and 248.2MB in the end (delta: 87.4MB). Peak memory consumption was 223.2MB. Max. memory is 16.0GB. [2023-08-26 04:32:41,225 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 360.7MB. Free memory is still 338.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 04:32:41,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.73ms. Allocated memory is still 360.7MB. Free memory was 335.5MB in the beginning and 314.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 04:32:41,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.13ms. Allocated memory is still 360.7MB. Free memory was 314.6MB in the beginning and 312.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 04:32:41,227 INFO L158 Benchmark]: Boogie Preprocessor took 20.61ms. Allocated memory is still 360.7MB. Free memory was 312.5MB in the beginning and 310.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 04:32:41,227 INFO L158 Benchmark]: RCFGBuilder took 635.01ms. Allocated memory is still 360.7MB. Free memory was 310.9MB in the beginning and 332.3MB in the end (delta: -21.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 04:32:41,227 INFO L158 Benchmark]: TraceAbstraction took 5837.94ms. Allocated memory was 360.7MB in the beginning and 497.0MB in the end (delta: 136.3MB). Free memory was 332.2MB in the beginning and 248.2MB in the end (delta: 84.0MB). Peak memory consumption was 221.4MB. Max. memory is 16.0GB. [2023-08-26 04:32:41,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 360.7MB. Free memory is still 338.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 482.73ms. Allocated memory is still 360.7MB. Free memory was 335.5MB in the beginning and 314.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.13ms. Allocated memory is still 360.7MB. Free memory was 314.6MB in the beginning and 312.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.61ms. Allocated memory is still 360.7MB. Free memory was 312.5MB in the beginning and 310.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 635.01ms. Allocated memory is still 360.7MB. Free memory was 310.9MB in the beginning and 332.3MB in the end (delta: -21.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 5837.94ms. Allocated memory was 360.7MB in the beginning and 497.0MB in the end (delta: 136.3MB). Free memory was 332.2MB in the beginning and 248.2MB in the end (delta: 84.0MB). Peak memory consumption was 221.4MB. 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: 3.7s, 119 PlacesBefore, 50 PlacesAfterwards, 112 TransitionsBefore, 41 TransitionsAfterwards, 3946 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 107 TotalNumberOfCompositions, 14338 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6729, independent: 6449, independent conditional: 0, independent unconditional: 6449, dependent: 280, dependent conditional: 0, dependent unconditional: 280, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2303, independent: 2233, independent conditional: 0, independent unconditional: 2233, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6729, independent: 4216, independent conditional: 0, independent unconditional: 4216, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 2303, unknown conditional: 0, unknown unconditional: 2303] , Statistics on independence cache: Total cache size (in pairs): 274, Positive cache size: 254, Positive conditional cache size: 0, Positive unconditional cache size: 254, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: 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: 789]: 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: 793]: 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: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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, 151 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 319 IncrementalHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 319 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 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 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 04:32:41,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...