./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:46:29,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:46:29,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:46:29,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:46:29,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:46:29,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:46:29,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:46:29,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:46:29,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:46:29,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:46:29,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:46:29,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:46:29,538 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:46:29,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:46:29,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:46:29,539 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:46:29,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:46:29,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:46:29,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:46:29,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:46:29,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:46:29,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:46:29,549 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:46:29,549 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:46:29,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:46:29,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:46:29,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:46:29,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:46:29,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:46:29,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:46:29,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:46:29,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:46:29,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:46:29,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:46:29,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:46:29,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:46:29,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:46:29,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:46:29,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:46:29,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:46:29,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:46:29,555 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2024-11-20 13:46:29,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:46:29,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:46:29,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:46:29,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:46:29,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:46:29,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-20 13:46:31,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:46:31,595 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:46:31,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2024-11-20 13:46:31,616 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96119da7f/4200a477ce3b47698014a72259a7fcf5/FLAG37c1317b8 [2024-11-20 13:46:31,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96119da7f/4200a477ce3b47698014a72259a7fcf5 [2024-11-20 13:46:31,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:46:31,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:46:31,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:46:31,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:46:31,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:46:31,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:46:31" (1/1) ... [2024-11-20 13:46:31,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a418f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:31, skipping insertion in model container [2024-11-20 13:46:31,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:46:31" (1/1) ... [2024-11-20 13:46:31,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:46:32,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:46:32,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:46:32,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:46:32,776 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:46:32,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32 WrapperNode [2024-11-20 13:46:32,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:46:32,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:46:32,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:46:32,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:46:32,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,892 INFO L138 Inliner]: procedures = 372, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 392 [2024-11-20 13:46:32,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:46:32,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:46:32,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:46:32,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:46:32,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:46:32,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:46:32,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:46:32,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:46:32,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (1/1) ... [2024-11-20 13:46:32,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:46:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:46:33,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:46:33,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:46:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-20 13:46:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-20 13:46:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:46:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:46:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:46:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:46:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:46:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:46:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-20 13:46:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:46:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:46:33,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:46:33,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:46:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:46:33,082 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:46:33,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:46:33,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:46:33,976 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:46:33,977 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:46:34,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:46:34,021 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 13:46:34,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:46:34 BoogieIcfgContainer [2024-11-20 13:46:34,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:46:34,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:46:34,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:46:34,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:46:34,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:46:31" (1/3) ... [2024-11-20 13:46:34,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775bac99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:46:34, skipping insertion in model container [2024-11-20 13:46:34,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:46:32" (2/3) ... [2024-11-20 13:46:34,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775bac99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:46:34, skipping insertion in model container [2024-11-20 13:46:34,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:46:34" (3/3) ... [2024-11-20 13:46:34,033 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2024-11-20 13:46:34,049 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:46:34,050 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-20 13:46:34,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:46:34,211 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:46:34,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 458 transitions, 920 flow [2024-11-20 13:46:34,430 INFO L124 PetriNetUnfolderBase]: 5/457 cut-off events. [2024-11-20 13:46:34,430 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:46:34,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 457 events. 5/457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 361 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 329. Up to 2 conditions per place. [2024-11-20 13:46:34,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 458 transitions, 920 flow [2024-11-20 13:46:34,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 456 places, 457 transitions, 917 flow [2024-11-20 13:46:34,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:46:34,473 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@69cb4b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:46:34,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-20 13:46:34,495 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:46:34,495 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2024-11-20 13:46:34,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:46:34,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:34,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:34,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:34,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:34,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1447814669, now seen corresponding path program 1 times [2024-11-20 13:46:34,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:34,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132420039] [2024-11-20 13:46:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:34,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:35,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132420039] [2024-11-20 13:46:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132420039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425282466] [2024-11-20 13:46:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:35,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:35,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:35,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:36,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 458 [2024-11-20 13:46:36,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 457 transitions, 917 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 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) [2024-11-20 13:46:36,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:36,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 458 [2024-11-20 13:46:36,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:36,805 INFO L124 PetriNetUnfolderBase]: 365/1812 cut-off events. [2024-11-20 13:46:36,806 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:46:36,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 1812 events. 365/1812 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9542 event pairs, 364 based on Foata normal form. 14/1689 useless extension candidates. Maximal degree in co-relation 2256. Up to 837 conditions per place. [2024-11-20 13:46:36,824 INFO L140 encePairwiseOnDemand]: 436/458 looper letters, 108 selfloop transitions, 15 changer transitions 2/450 dead transitions. [2024-11-20 13:46:36,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 450 transitions, 1149 flow [2024-11-20 13:46:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2098 transitions. [2024-11-20 13:46:36,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7634643377001455 [2024-11-20 13:46:36,853 INFO L175 Difference]: Start difference. First operand has 456 places, 457 transitions, 917 flow. Second operand 6 states and 2098 transitions. [2024-11-20 13:46:36,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 450 transitions, 1149 flow [2024-11-20 13:46:36,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 450 transitions, 1148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:46:36,869 INFO L231 Difference]: Finished difference. Result has 457 places, 448 transitions, 928 flow [2024-11-20 13:46:36,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=928, PETRI_PLACES=457, PETRI_TRANSITIONS=448} [2024-11-20 13:46:36,877 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 1 predicate places. [2024-11-20 13:46:36,880 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 448 transitions, 928 flow [2024-11-20 13:46:36,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 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) [2024-11-20 13:46:36,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:36,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:36,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:46:36,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:36,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:36,884 INFO L85 PathProgramCache]: Analyzing trace with hash -117518850, now seen corresponding path program 1 times [2024-11-20 13:46:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:36,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295152972] [2024-11-20 13:46:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:37,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295152972] [2024-11-20 13:46:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295152972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:37,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880104528] [2024-11-20 13:46:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:37,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:37,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:38,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 458 [2024-11-20 13:46:38,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 448 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 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) [2024-11-20 13:46:38,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:38,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 458 [2024-11-20 13:46:38,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:38,560 INFO L124 PetriNetUnfolderBase]: 365/1807 cut-off events. [2024-11-20 13:46:38,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:46:38,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2678 conditions, 1807 events. 365/1807 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9466 event pairs, 364 based on Foata normal form. 0/1675 useless extension candidates. Maximal degree in co-relation 2399. Up to 837 conditions per place. [2024-11-20 13:46:38,570 INFO L140 encePairwiseOnDemand]: 440/458 looper letters, 108 selfloop transitions, 15 changer transitions 0/445 dead transitions. [2024-11-20 13:46:38,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 445 transitions, 1168 flow [2024-11-20 13:46:38,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:38,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2094 transitions. [2024-11-20 13:46:38,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7620087336244541 [2024-11-20 13:46:38,575 INFO L175 Difference]: Start difference. First operand has 457 places, 448 transitions, 928 flow. Second operand 6 states and 2094 transitions. [2024-11-20 13:46:38,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 445 transitions, 1168 flow [2024-11-20 13:46:38,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 445 transitions, 1138 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:38,582 INFO L231 Difference]: Finished difference. Result has 452 places, 445 transitions, 922 flow [2024-11-20 13:46:38,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=452, PETRI_TRANSITIONS=445} [2024-11-20 13:46:38,584 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -4 predicate places. [2024-11-20 13:46:38,584 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 445 transitions, 922 flow [2024-11-20 13:46:38,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 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) [2024-11-20 13:46:38,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:38,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:38,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:46:38,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:38,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:38,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1744197474, now seen corresponding path program 1 times [2024-11-20 13:46:38,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:38,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271597418] [2024-11-20 13:46:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:38,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:39,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:39,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271597418] [2024-11-20 13:46:39,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271597418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:39,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:39,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:39,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341101651] [2024-11-20 13:46:39,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:39,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:39,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:39,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:39,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:39,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 458 [2024-11-20 13:46:39,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 445 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 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) [2024-11-20 13:46:39,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:39,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 458 [2024-11-20 13:46:39,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:40,007 INFO L124 PetriNetUnfolderBase]: 391/1895 cut-off events. [2024-11-20 13:46:40,008 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:46:40,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2822 conditions, 1895 events. 391/1895 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10224 event pairs, 390 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 2525. Up to 903 conditions per place. [2024-11-20 13:46:40,016 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 122 selfloop transitions, 5 changer transitions 0/444 dead transitions. [2024-11-20 13:46:40,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 444 transitions, 1174 flow [2024-11-20 13:46:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2084 transitions. [2024-11-20 13:46:40,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7583697234352256 [2024-11-20 13:46:40,023 INFO L175 Difference]: Start difference. First operand has 452 places, 445 transitions, 922 flow. Second operand 6 states and 2084 transitions. [2024-11-20 13:46:40,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 444 transitions, 1174 flow [2024-11-20 13:46:40,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 444 transitions, 1144 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:40,031 INFO L231 Difference]: Finished difference. Result has 451 places, 444 transitions, 900 flow [2024-11-20 13:46:40,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=900, PETRI_PLACES=451, PETRI_TRANSITIONS=444} [2024-11-20 13:46:40,032 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -5 predicate places. [2024-11-20 13:46:40,033 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 444 transitions, 900 flow [2024-11-20 13:46:40,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 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) [2024-11-20 13:46:40,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:40,034 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:40,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:46:40,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:40,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash -640380955, now seen corresponding path program 1 times [2024-11-20 13:46:40,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:40,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590481423] [2024-11-20 13:46:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:40,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:40,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:40,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590481423] [2024-11-20 13:46:40,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590481423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:46:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895164983] [2024-11-20 13:46:40,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:40,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:46:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:40,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:46:40,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:46:40,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 458 [2024-11-20 13:46:40,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 444 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 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) [2024-11-20 13:46:40,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:40,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 458 [2024-11-20 13:46:40,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:40,261 INFO L124 PetriNetUnfolderBase]: 7/629 cut-off events. [2024-11-20 13:46:40,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:46:40,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 629 events. 7/629 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 631 event pairs, 6 based on Foata normal form. 1/594 useless extension candidates. Maximal degree in co-relation 467. Up to 24 conditions per place. [2024-11-20 13:46:40,264 INFO L140 encePairwiseOnDemand]: 455/458 looper letters, 10 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2024-11-20 13:46:40,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 445 transitions, 926 flow [2024-11-20 13:46:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:46:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:46:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1342 transitions. [2024-11-20 13:46:40,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9767103347889374 [2024-11-20 13:46:40,267 INFO L175 Difference]: Start difference. First operand has 451 places, 444 transitions, 900 flow. Second operand 3 states and 1342 transitions. [2024-11-20 13:46:40,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 445 transitions, 926 flow [2024-11-20 13:46:40,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 445 transitions, 916 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:40,280 INFO L231 Difference]: Finished difference. Result has 449 places, 445 transitions, 902 flow [2024-11-20 13:46:40,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=449, PETRI_TRANSITIONS=445} [2024-11-20 13:46:40,282 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -7 predicate places. [2024-11-20 13:46:40,282 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 445 transitions, 902 flow [2024-11-20 13:46:40,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 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) [2024-11-20 13:46:40,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:40,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:40,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:46:40,284 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:40,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:40,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1927925640, now seen corresponding path program 1 times [2024-11-20 13:46:40,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:40,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159952728] [2024-11-20 13:46:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:40,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159952728] [2024-11-20 13:46:40,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159952728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:40,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:40,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:40,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466706490] [2024-11-20 13:46:40,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:40,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:41,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 458 [2024-11-20 13:46:41,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 445 transitions, 902 flow. Second operand has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 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) [2024-11-20 13:46:41,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:41,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 458 [2024-11-20 13:46:41,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:42,060 INFO L124 PetriNetUnfolderBase]: 55/870 cut-off events. [2024-11-20 13:46:42,060 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:46:42,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 870 events. 55/870 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2239 event pairs, 54 based on Foata normal form. 0/810 useless extension candidates. Maximal degree in co-relation 887. Up to 219 conditions per place. [2024-11-20 13:46:42,066 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 81 selfloop transitions, 5 changer transitions 0/444 dead transitions. [2024-11-20 13:46:42,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 444 transitions, 1072 flow [2024-11-20 13:46:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2294 transitions. [2024-11-20 13:46:42,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8347889374090247 [2024-11-20 13:46:42,071 INFO L175 Difference]: Start difference. First operand has 449 places, 445 transitions, 902 flow. Second operand 6 states and 2294 transitions. [2024-11-20 13:46:42,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 444 transitions, 1072 flow [2024-11-20 13:46:42,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 444 transitions, 1070 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:46:42,082 INFO L231 Difference]: Finished difference. Result has 452 places, 444 transitions, 908 flow [2024-11-20 13:46:42,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=452, PETRI_TRANSITIONS=444} [2024-11-20 13:46:42,084 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -4 predicate places. [2024-11-20 13:46:42,084 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 444 transitions, 908 flow [2024-11-20 13:46:42,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 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) [2024-11-20 13:46:42,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:42,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:42,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:46:42,086 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:42,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash 235622532, now seen corresponding path program 1 times [2024-11-20 13:46:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:42,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711522354] [2024-11-20 13:46:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:42,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:42,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:42,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711522354] [2024-11-20 13:46:42,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711522354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:42,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:42,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:42,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944520171] [2024-11-20 13:46:42,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:42,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:42,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:42,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:42,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:43,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 458 [2024-11-20 13:46:43,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 444 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 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) [2024-11-20 13:46:43,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:43,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 458 [2024-11-20 13:46:43,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:43,797 INFO L124 PetriNetUnfolderBase]: 37/783 cut-off events. [2024-11-20 13:46:43,798 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:46:43,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 783 events. 37/783 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1736 event pairs, 36 based on Foata normal form. 0/740 useless extension candidates. Maximal degree in co-relation 755. Up to 190 conditions per place. [2024-11-20 13:46:43,801 INFO L140 encePairwiseOnDemand]: 440/458 looper letters, 85 selfloop transitions, 15 changer transitions 0/441 dead transitions. [2024-11-20 13:46:43,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 441 transitions, 1102 flow [2024-11-20 13:46:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2209 transitions. [2024-11-20 13:46:43,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038573508005823 [2024-11-20 13:46:43,807 INFO L175 Difference]: Start difference. First operand has 452 places, 444 transitions, 908 flow. Second operand 6 states and 2209 transitions. [2024-11-20 13:46:43,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 441 transitions, 1102 flow [2024-11-20 13:46:43,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 441 transitions, 1092 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:43,815 INFO L231 Difference]: Finished difference. Result has 449 places, 441 transitions, 922 flow [2024-11-20 13:46:43,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=449, PETRI_TRANSITIONS=441} [2024-11-20 13:46:43,817 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -7 predicate places. [2024-11-20 13:46:43,817 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 441 transitions, 922 flow [2024-11-20 13:46:43,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.5) internal successors, (2133), 6 states have internal predecessors, (2133), 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) [2024-11-20 13:46:43,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:43,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:43,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:46:43,819 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:43,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash -800702376, now seen corresponding path program 1 times [2024-11-20 13:46:43,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:43,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297183498] [2024-11-20 13:46:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:43,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:44,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:44,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297183498] [2024-11-20 13:46:44,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297183498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:44,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:44,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:44,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061001637] [2024-11-20 13:46:44,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:44,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:44,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:44,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:44,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 458 [2024-11-20 13:46:44,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 441 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 319.1666666666667) internal successors, (1915), 6 states have internal predecessors, (1915), 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) [2024-11-20 13:46:44,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:44,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 458 [2024-11-20 13:46:44,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:45,321 INFO L124 PetriNetUnfolderBase]: 365/1905 cut-off events. [2024-11-20 13:46:45,321 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 13:46:45,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2844 conditions, 1905 events. 365/1905 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9489 event pairs, 364 based on Foata normal form. 0/1781 useless extension candidates. Maximal degree in co-relation 2457. Up to 890 conditions per place. [2024-11-20 13:46:45,328 INFO L140 encePairwiseOnDemand]: 440/458 looper letters, 123 selfloop transitions, 15 changer transitions 0/438 dead transitions. [2024-11-20 13:46:45,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 438 transitions, 1192 flow [2024-11-20 13:46:45,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2019 transitions. [2024-11-20 13:46:45,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7347161572052402 [2024-11-20 13:46:45,333 INFO L175 Difference]: Start difference. First operand has 449 places, 441 transitions, 922 flow. Second operand 6 states and 2019 transitions. [2024-11-20 13:46:45,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 438 transitions, 1192 flow [2024-11-20 13:46:45,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 438 transitions, 1162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:45,340 INFO L231 Difference]: Finished difference. Result has 446 places, 438 transitions, 916 flow [2024-11-20 13:46:45,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=916, PETRI_PLACES=446, PETRI_TRANSITIONS=438} [2024-11-20 13:46:45,342 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -10 predicate places. [2024-11-20 13:46:45,342 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 438 transitions, 916 flow [2024-11-20 13:46:45,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 319.1666666666667) internal successors, (1915), 6 states have internal predecessors, (1915), 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) [2024-11-20 13:46:45,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:45,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:45,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:46:45,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:45,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:45,344 INFO L85 PathProgramCache]: Analyzing trace with hash 76021102, now seen corresponding path program 1 times [2024-11-20 13:46:45,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:45,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454554062] [2024-11-20 13:46:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:45,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:45,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454554062] [2024-11-20 13:46:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454554062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:45,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:45,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:46:45,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763675220] [2024-11-20 13:46:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:45,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:45,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:46:46,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 458 [2024-11-20 13:46:46,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 438 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 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) [2024-11-20 13:46:46,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:46,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 458 [2024-11-20 13:46:46,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:46,830 INFO L124 PetriNetUnfolderBase]: 365/1901 cut-off events. [2024-11-20 13:46:46,830 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 13:46:46,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1901 events. 365/1901 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9454 event pairs, 364 based on Foata normal form. 0/1781 useless extension candidates. Maximal degree in co-relation 2453. Up to 886 conditions per place. [2024-11-20 13:46:46,838 INFO L140 encePairwiseOnDemand]: 440/458 looper letters, 120 selfloop transitions, 15 changer transitions 0/435 dead transitions. [2024-11-20 13:46:46,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 435 transitions, 1180 flow [2024-11-20 13:46:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2034 transitions. [2024-11-20 13:46:46,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.740174672489083 [2024-11-20 13:46:46,843 INFO L175 Difference]: Start difference. First operand has 446 places, 438 transitions, 916 flow. Second operand 6 states and 2034 transitions. [2024-11-20 13:46:46,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 435 transitions, 1180 flow [2024-11-20 13:46:46,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 435 transitions, 1150 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:46,851 INFO L231 Difference]: Finished difference. Result has 443 places, 435 transitions, 910 flow [2024-11-20 13:46:46,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=910, PETRI_PLACES=443, PETRI_TRANSITIONS=435} [2024-11-20 13:46:46,853 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -13 predicate places. [2024-11-20 13:46:46,854 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 435 transitions, 910 flow [2024-11-20 13:46:46,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 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) [2024-11-20 13:46:46,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:46,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:46,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:46:46,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:46,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:46,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2099206652, now seen corresponding path program 1 times [2024-11-20 13:46:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:46,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515980504] [2024-11-20 13:46:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:46,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515980504] [2024-11-20 13:46:47,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515980504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:46:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344013707] [2024-11-20 13:46:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:47,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:47,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:46:47,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:46:47,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:46:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:47,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:46:47,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:46:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:47,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:46:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344013707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:46:47,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:46:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:46:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772175785] [2024-11-20 13:46:47,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:46:47,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:46:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:47,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:46:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:46:47,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 458 [2024-11-20 13:46:47,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 435 transitions, 910 flow. Second operand has 10 states, 10 states have (on average 441.8) internal successors, (4418), 10 states have internal predecessors, (4418), 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) [2024-11-20 13:46:47,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:47,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 458 [2024-11-20 13:46:47,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:48,072 INFO L124 PetriNetUnfolderBase]: 7/723 cut-off events. [2024-11-20 13:46:48,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:46:48,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 723 events. 7/723 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 394 event pairs, 6 based on Foata normal form. 2/703 useless extension candidates. Maximal degree in co-relation 365. Up to 24 conditions per place. [2024-11-20 13:46:48,075 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 14 selfloop transitions, 9 changer transitions 0/443 dead transitions. [2024-11-20 13:46:48,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 443 transitions, 974 flow [2024-11-20 13:46:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3985 transitions. [2024-11-20 13:46:48,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9667637069383794 [2024-11-20 13:46:48,086 INFO L175 Difference]: Start difference. First operand has 443 places, 435 transitions, 910 flow. Second operand 9 states and 3985 transitions. [2024-11-20 13:46:48,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 443 transitions, 974 flow [2024-11-20 13:46:48,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 443 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:46:48,097 INFO L231 Difference]: Finished difference. Result has 449 places, 441 transitions, 930 flow [2024-11-20 13:46:48,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=930, PETRI_PLACES=449, PETRI_TRANSITIONS=441} [2024-11-20 13:46:48,098 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, -7 predicate places. [2024-11-20 13:46:48,099 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 441 transitions, 930 flow [2024-11-20 13:46:48,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 441.8) internal successors, (4418), 10 states have internal predecessors, (4418), 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) [2024-11-20 13:46:48,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:48,102 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:48,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:46:48,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:48,303 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:48,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash -903834110, now seen corresponding path program 2 times [2024-11-20 13:46:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:48,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535848378] [2024-11-20 13:46:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:48,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:49,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535848378] [2024-11-20 13:46:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535848378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:46:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362660147] [2024-11-20 13:46:49,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:46:49,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:46:49,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:46:49,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:46:49,387 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:46:49,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:46:49,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:46:49,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:46:49,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 13:46:49,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-20 13:46:49,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:46:49,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-20 13:46:49,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:46:49,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-20 13:46:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-20 13:46:49,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:46:49,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362660147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:49,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:46:49,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-20 13:46:49,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457317613] [2024-11-20 13:46:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:49,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:46:50,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 458 [2024-11-20 13:46:50,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 441 transitions, 930 flow. Second operand has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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) [2024-11-20 13:46:50,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:50,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 458 [2024-11-20 13:46:50,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:50,832 INFO L124 PetriNetUnfolderBase]: 257/2029 cut-off events. [2024-11-20 13:46:50,832 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:46:50,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2029 events. 257/2029 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10054 event pairs, 34 based on Foata normal form. 0/1902 useless extension candidates. Maximal degree in co-relation 2222. Up to 515 conditions per place. [2024-11-20 13:46:50,841 INFO L140 encePairwiseOnDemand]: 429/458 looper letters, 91 selfloop transitions, 75 changer transitions 0/518 dead transitions. [2024-11-20 13:46:50,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 518 transitions, 1416 flow [2024-11-20 13:46:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2358 transitions. [2024-11-20 13:46:50,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8580786026200873 [2024-11-20 13:46:50,847 INFO L175 Difference]: Start difference. First operand has 449 places, 441 transitions, 930 flow. Second operand 6 states and 2358 transitions. [2024-11-20 13:46:50,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 518 transitions, 1416 flow [2024-11-20 13:46:50,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 518 transitions, 1410 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:46:50,858 INFO L231 Difference]: Finished difference. Result has 457 places, 509 transitions, 1404 flow [2024-11-20 13:46:50,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1404, PETRI_PLACES=457, PETRI_TRANSITIONS=509} [2024-11-20 13:46:50,861 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 1 predicate places. [2024-11-20 13:46:50,861 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 509 transitions, 1404 flow [2024-11-20 13:46:50,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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) [2024-11-20 13:46:50,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:50,862 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:50,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 13:46:51,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 13:46:51,067 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1442276429, now seen corresponding path program 1 times [2024-11-20 13:46:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688571094] [2024-11-20 13:46:51,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:51,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:51,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688571094] [2024-11-20 13:46:51,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688571094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:46:51,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769850460] [2024-11-20 13:46:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:51,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:51,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:46:51,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:46:51,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:46:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:52,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:46:52,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:46:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:52,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:46:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769850460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:46:53,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:46:53,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:46:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331096114] [2024-11-20 13:46:53,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:46:53,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:46:53,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:53,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:46:53,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:46:53,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 458 [2024-11-20 13:46:53,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 509 transitions, 1404 flow. Second operand has 18 states, 18 states have (on average 441.8888888888889) internal successors, (7954), 18 states have internal predecessors, (7954), 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) [2024-11-20 13:46:53,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:53,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 458 [2024-11-20 13:46:53,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:54,063 INFO L124 PetriNetUnfolderBase]: 159/2165 cut-off events. [2024-11-20 13:46:54,064 INFO L125 PetriNetUnfolderBase]: For 184/198 co-relation queries the response was YES. [2024-11-20 13:46:54,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2895 conditions, 2165 events. 159/2165 cut-off events. For 184/198 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7404 event pairs, 23 based on Foata normal form. 4/2082 useless extension candidates. Maximal degree in co-relation 1998. Up to 208 conditions per place. [2024-11-20 13:46:54,072 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 19 selfloop transitions, 21 changer transitions 0/527 dead transitions. [2024-11-20 13:46:54,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 527 transitions, 1572 flow [2024-11-20 13:46:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:46:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:46:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9283 transitions. [2024-11-20 13:46:54,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9651694739030984 [2024-11-20 13:46:54,090 INFO L175 Difference]: Start difference. First operand has 457 places, 509 transitions, 1404 flow. Second operand 21 states and 9283 transitions. [2024-11-20 13:46:54,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 527 transitions, 1572 flow [2024-11-20 13:46:54,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 527 transitions, 1572 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:46:54,102 INFO L231 Difference]: Finished difference. Result has 482 places, 522 transitions, 1534 flow [2024-11-20 13:46:54,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1534, PETRI_PLACES=482, PETRI_TRANSITIONS=522} [2024-11-20 13:46:54,104 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 26 predicate places. [2024-11-20 13:46:54,104 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 522 transitions, 1534 flow [2024-11-20 13:46:54,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 441.8888888888889) internal successors, (7954), 18 states have internal predecessors, (7954), 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) [2024-11-20 13:46:54,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:54,108 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:54,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 13:46:54,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:54,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1893180873, now seen corresponding path program 2 times [2024-11-20 13:46:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:54,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255830211] [2024-11-20 13:46:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:56,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:46:56,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:56,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255830211] [2024-11-20 13:46:56,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255830211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:46:56,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964415149] [2024-11-20 13:46:56,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:46:56,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:56,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:46:56,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:46:56,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:46:56,734 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:46:56,734 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:46:56,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 13:46:56,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:46:56,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 13:46:56,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-20 13:46:56,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:46:56,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-20 13:46:56,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:46:56,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-20 13:46:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2024-11-20 13:46:56,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:46:56,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964415149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:46:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:46:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080533306] [2024-11-20 13:46:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:56,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:46:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:46:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:46:57,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 458 [2024-11-20 13:46:57,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 522 transitions, 1534 flow. Second operand has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 6 states have internal predecessors, (2278), 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) [2024-11-20 13:46:57,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:57,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 458 [2024-11-20 13:46:57,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:58,376 INFO L124 PetriNetUnfolderBase]: 227/2346 cut-off events. [2024-11-20 13:46:58,377 INFO L125 PetriNetUnfolderBase]: For 438/483 co-relation queries the response was YES. [2024-11-20 13:46:58,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3668 conditions, 2346 events. 227/2346 cut-off events. For 438/483 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8650 event pairs, 55 based on Foata normal form. 0/2232 useless extension candidates. Maximal degree in co-relation 2566. Up to 564 conditions per place. [2024-11-20 13:46:58,389 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 142 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-11-20 13:46:58,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 521 transitions, 1826 flow [2024-11-20 13:46:58,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:46:58,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:46:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2309 transitions. [2024-11-20 13:46:58,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8402474526928675 [2024-11-20 13:46:58,394 INFO L175 Difference]: Start difference. First operand has 482 places, 522 transitions, 1534 flow. Second operand 6 states and 2309 transitions. [2024-11-20 13:46:58,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 521 transitions, 1826 flow [2024-11-20 13:46:58,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 521 transitions, 1802 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:46:58,406 INFO L231 Difference]: Finished difference. Result has 480 places, 521 transitions, 1518 flow [2024-11-20 13:46:58,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=1508, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1518, PETRI_PLACES=480, PETRI_TRANSITIONS=521} [2024-11-20 13:46:58,408 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 24 predicate places. [2024-11-20 13:46:58,408 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 521 transitions, 1518 flow [2024-11-20 13:46:58,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 6 states have internal predecessors, (2278), 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) [2024-11-20 13:46:58,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:58,410 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:58,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:46:58,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:46:58,611 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:46:58,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:58,611 INFO L85 PathProgramCache]: Analyzing trace with hash -996926539, now seen corresponding path program 1 times [2024-11-20 13:46:58,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:58,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124967274] [2024-11-20 13:46:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:00,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:00,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124967274] [2024-11-20 13:47:00,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124967274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:47:00,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714976606] [2024-11-20 13:47:00,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:00,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:47:00,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:47:00,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:47:00,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:47:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:01,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 3674 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:47:01,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:47:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:01,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:47:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:02,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714976606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:47:02,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:47:02,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:47:02,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611195169] [2024-11-20 13:47:02,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:47:02,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:47:02,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:47:02,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:47:02,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 458 [2024-11-20 13:47:02,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 521 transitions, 1518 flow. Second operand has 23 states, 23 states have (on average 442.0869565217391) internal successors, (10168), 23 states have internal predecessors, (10168), 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) [2024-11-20 13:47:03,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:03,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 458 [2024-11-20 13:47:03,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:03,809 INFO L124 PetriNetUnfolderBase]: 159/2482 cut-off events. [2024-11-20 13:47:03,810 INFO L125 PetriNetUnfolderBase]: For 301/315 co-relation queries the response was YES. [2024-11-20 13:47:03,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 2482 events. 159/2482 cut-off events. For 301/315 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7423 event pairs, 23 based on Foata normal form. 3/2399 useless extension candidates. Maximal degree in co-relation 2009. Up to 208 conditions per place. [2024-11-20 13:47:03,820 INFO L140 encePairwiseOnDemand]: 452/458 looper letters, 22 selfloop transitions, 30 changer transitions 0/538 dead transitions. [2024-11-20 13:47:03,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 538 transitions, 1744 flow [2024-11-20 13:47:03,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:47:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:47:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 13254 transitions. [2024-11-20 13:47:03,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9646288209606987 [2024-11-20 13:47:03,832 INFO L175 Difference]: Start difference. First operand has 480 places, 521 transitions, 1518 flow. Second operand 30 states and 13254 transitions. [2024-11-20 13:47:03,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 538 transitions, 1744 flow [2024-11-20 13:47:03,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 538 transitions, 1734 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:47:03,844 INFO L231 Difference]: Finished difference. Result has 508 places, 531 transitions, 1660 flow [2024-11-20 13:47:03,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=1508, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1660, PETRI_PLACES=508, PETRI_TRANSITIONS=531} [2024-11-20 13:47:03,845 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 52 predicate places. [2024-11-20 13:47:03,845 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 531 transitions, 1660 flow [2024-11-20 13:47:03,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 442.0869565217391) internal successors, (10168), 23 states have internal predecessors, (10168), 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) [2024-11-20 13:47:03,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:03,848 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:03,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:47:04,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 13:47:04,049 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:47:04,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash -754270958, now seen corresponding path program 2 times [2024-11-20 13:47:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:04,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552062011] [2024-11-20 13:47:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:04,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-11-20 13:47:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552062011] [2024-11-20 13:47:07,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552062011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:07,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:07,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59058200] [2024-11-20 13:47:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:07,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:07,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:07,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:07,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 458 [2024-11-20 13:47:07,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 531 transitions, 1660 flow. Second operand has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 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) [2024-11-20 13:47:07,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:08,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 458 [2024-11-20 13:47:08,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:09,048 INFO L124 PetriNetUnfolderBase]: 545/3579 cut-off events. [2024-11-20 13:47:09,048 INFO L125 PetriNetUnfolderBase]: For 942/1042 co-relation queries the response was YES. [2024-11-20 13:47:09,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6089 conditions, 3579 events. 545/3579 cut-off events. For 942/1042 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16123 event pairs, 93 based on Foata normal form. 16/3430 useless extension candidates. Maximal degree in co-relation 4524. Up to 1089 conditions per place. [2024-11-20 13:47:09,063 INFO L140 encePairwiseOnDemand]: 435/458 looper letters, 155 selfloop transitions, 130 changer transitions 0/668 dead transitions. [2024-11-20 13:47:09,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 668 transitions, 2880 flow [2024-11-20 13:47:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2387 transitions. [2024-11-20 13:47:09,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.86863173216885 [2024-11-20 13:47:09,065 INFO L175 Difference]: Start difference. First operand has 508 places, 531 transitions, 1660 flow. Second operand 6 states and 2387 transitions. [2024-11-20 13:47:09,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 668 transitions, 2880 flow [2024-11-20 13:47:09,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 668 transitions, 2834 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-20 13:47:09,080 INFO L231 Difference]: Finished difference. Result has 500 places, 660 transitions, 2842 flow [2024-11-20 13:47:09,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=1614, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2842, PETRI_PLACES=500, PETRI_TRANSITIONS=660} [2024-11-20 13:47:09,082 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 44 predicate places. [2024-11-20 13:47:09,082 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 660 transitions, 2842 flow [2024-11-20 13:47:09,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 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) [2024-11-20 13:47:09,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:09,083 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:09,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:47:09,084 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:47:09,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1387782814, now seen corresponding path program 1 times [2024-11-20 13:47:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318019566] [2024-11-20 13:47:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-11-20 13:47:12,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:12,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318019566] [2024-11-20 13:47:12,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318019566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:12,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:12,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:12,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901305687] [2024-11-20 13:47:12,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:12,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:12,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:12,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:12,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:12,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 458 [2024-11-20 13:47:12,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 660 transitions, 2842 flow. Second operand has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 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) [2024-11-20 13:47:12,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:12,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 458 [2024-11-20 13:47:12,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:14,237 INFO L124 PetriNetUnfolderBase]: 821/4345 cut-off events. [2024-11-20 13:47:14,237 INFO L125 PetriNetUnfolderBase]: For 3320/3523 co-relation queries the response was YES. [2024-11-20 13:47:14,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8947 conditions, 4345 events. 821/4345 cut-off events. For 3320/3523 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22419 event pairs, 74 based on Foata normal form. 76/4246 useless extension candidates. Maximal degree in co-relation 7399. Up to 1348 conditions per place. [2024-11-20 13:47:14,264 INFO L140 encePairwiseOnDemand]: 435/458 looper letters, 276 selfloop transitions, 131 changer transitions 5/798 dead transitions. [2024-11-20 13:47:14,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 798 transitions, 4566 flow [2024-11-20 13:47:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2383 transitions. [2024-11-20 13:47:14,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8671761280931587 [2024-11-20 13:47:14,267 INFO L175 Difference]: Start difference. First operand has 500 places, 660 transitions, 2842 flow. Second operand 6 states and 2383 transitions. [2024-11-20 13:47:14,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 798 transitions, 4566 flow [2024-11-20 13:47:14,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 798 transitions, 4566 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:14,282 INFO L231 Difference]: Finished difference. Result has 510 places, 788 transitions, 4322 flow [2024-11-20 13:47:14,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=2842, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4322, PETRI_PLACES=510, PETRI_TRANSITIONS=788} [2024-11-20 13:47:14,284 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 54 predicate places. [2024-11-20 13:47:14,284 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 788 transitions, 4322 flow [2024-11-20 13:47:14,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 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) [2024-11-20 13:47:14,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:14,285 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:14,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:47:14,286 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:47:14,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:14,286 INFO L85 PathProgramCache]: Analyzing trace with hash 499502022, now seen corresponding path program 1 times [2024-11-20 13:47:14,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:14,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621298502] [2024-11-20 13:47:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-11-20 13:47:17,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:17,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621298502] [2024-11-20 13:47:17,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621298502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:17,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:17,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:17,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977671503] [2024-11-20 13:47:17,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:17,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:17,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:17,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:17,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 458 [2024-11-20 13:47:17,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 788 transitions, 4322 flow. Second operand has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 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) [2024-11-20 13:47:17,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:17,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 458 [2024-11-20 13:47:17,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:19,835 INFO L124 PetriNetUnfolderBase]: 1308/5674 cut-off events. [2024-11-20 13:47:19,835 INFO L125 PetriNetUnfolderBase]: For 4855/4912 co-relation queries the response was YES. [2024-11-20 13:47:19,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13603 conditions, 5674 events. 1308/5674 cut-off events. For 4855/4912 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33857 event pairs, 369 based on Foata normal form. 11/5440 useless extension candidates. Maximal degree in co-relation 11971. Up to 2589 conditions per place. [2024-11-20 13:47:19,868 INFO L140 encePairwiseOnDemand]: 439/458 looper letters, 356 selfloop transitions, 84 changer transitions 0/867 dead transitions. [2024-11-20 13:47:19,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 867 transitions, 5600 flow [2024-11-20 13:47:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2186 transitions. [2024-11-20 13:47:19,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7954876273653566 [2024-11-20 13:47:19,871 INFO L175 Difference]: Start difference. First operand has 510 places, 788 transitions, 4322 flow. Second operand 6 states and 2186 transitions. [2024-11-20 13:47:19,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 867 transitions, 5600 flow [2024-11-20 13:47:19,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 867 transitions, 5346 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:19,903 INFO L231 Difference]: Finished difference. Result has 519 places, 859 transitions, 4858 flow [2024-11-20 13:47:19,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=4074, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=788, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=740, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4858, PETRI_PLACES=519, PETRI_TRANSITIONS=859} [2024-11-20 13:47:19,904 INFO L277 CegarLoopForPetriNet]: 456 programPoint places, 63 predicate places. [2024-11-20 13:47:19,904 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 859 transitions, 4858 flow [2024-11-20 13:47:19,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 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) [2024-11-20 13:47:19,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:19,906 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:19,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:47:19,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:47:19,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash 350580044, now seen corresponding path program 1 times [2024-11-20 13:47:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503131257] [2024-11-20 13:47:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat