./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:35:50,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:35:50,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:35:50,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:35:50,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:35:50,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:35:50,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:35:50,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:35:50,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:35:50,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:35:50,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:35:50,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:35:50,232 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:35:50,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:35:50,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:35:50,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:35:50,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:35:50,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:35:50,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:35:50,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:35:50,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:35:50,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:35:50,240 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:35:50,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:35:50,241 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:35:50,241 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:35:50,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:35:50,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:35:50,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:35:50,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:35:50,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:35:50,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:50,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:35:50,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:35:50,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:35:50,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:35:50,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:35:50,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:35:50,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:35:50,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:35:50,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:35:50,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-16 23:35:50,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:35:50,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:35:50,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:35:50,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:35:50,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:35:50,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-16 23:35:52,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:35:52,308 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:35:52,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-16 23:35:52,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e68999b4/90771b44b22844ee89495d257b73ae91/FLAG2ac646142 [2024-11-16 23:35:52,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e68999b4/90771b44b22844ee89495d257b73ae91 [2024-11-16 23:35:52,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:35:52,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:35:52,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:52,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:35:52,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:35:52,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:52" (1/1) ... [2024-11-16 23:35:52,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561260ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:52, skipping insertion in model container [2024-11-16 23:35:52,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:52" (1/1) ... [2024-11-16 23:35:52,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:35:53,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:53,149 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:35:53,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:53,304 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:35:53,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53 WrapperNode [2024-11-16 23:35:53,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:53,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:53,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:35:53,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:35:53,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,353 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-16 23:35:53,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:53,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:35:53,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:35:53,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:35:53,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,373 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:35:53,379 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:35:53,380 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:35:53,380 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:35:53,380 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (1/1) ... [2024-11-16 23:35:53,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:53,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:53,423 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) [2024-11-16 23:35:53,426 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 [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:35:53,466 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:35:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:35:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:35:53,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:35:53,470 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:35:53,588 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:35:53,591 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:35:53,750 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:35:53,751 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:35:53,788 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:35:53,789 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:35:53,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:53 BoogieIcfgContainer [2024-11-16 23:35:53,789 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:35:53,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:35:53,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:35:53,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:35:53,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:35:52" (1/3) ... [2024-11-16 23:35:53,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215d7e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:53, skipping insertion in model container [2024-11-16 23:35:53,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:53" (2/3) ... [2024-11-16 23:35:53,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215d7e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:53, skipping insertion in model container [2024-11-16 23:35:53,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:53" (3/3) ... [2024-11-16 23:35:53,798 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-16 23:35:53,815 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:35:53,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 23:35:53,816 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:35:53,867 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:35:53,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-11-16 23:35:53,945 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-16 23:35:53,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:53,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-16 23:35:53,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-11-16 23:35:53,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-11-16 23:35:53,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:35:53,975 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;@11eb1535, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:35:53,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 23:35:53,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:35:53,999 INFO L124 PetriNetUnfolderBase]: 1/60 cut-off events. [2024-11-16 23:35:53,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:54,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:54,001 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] [2024-11-16 23:35:54,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:35:54,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1254994195, now seen corresponding path program 1 times [2024-11-16 23:35:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:54,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894829947] [2024-11-16 23:35:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:54,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:54,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:54,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894829947] [2024-11-16 23:35:54,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894829947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:54,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:54,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:54,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143420657] [2024-11-16 23:35:54,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:35:55,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-11-16 23:35:55,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2024-11-16 23:35:55,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:55,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-11-16 23:35:55,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:55,357 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-11-16 23:35:55,360 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:35:55,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1540 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2024-11-16 23:35:55,367 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-11-16 23:35:55,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-11-16 23:35:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-16 23:35:55,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-11-16 23:35:55,383 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-11-16 23:35:55,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-11-16 23:35:55,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:35:55,390 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-11-16 23:35:55,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2024-11-16 23:35:55,398 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-11-16 23:35:55,399 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-11-16 23:35:55,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2024-11-16 23:35:55,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:55,399 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] [2024-11-16 23:35:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:35:55,400 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:35:55,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash -876279696, now seen corresponding path program 1 times [2024-11-16 23:35:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513669386] [2024-11-16 23:35:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:55,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:55,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513669386] [2024-11-16 23:35:55,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513669386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:55,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:55,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:55,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064165497] [2024-11-16 23:35:55,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:55,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:55,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:35:55,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-11-16 23:35:55,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2024-11-16 23:35:55,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:55,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-11-16 23:35:55,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:55,923 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-11-16 23:35:55,923 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-11-16 23:35:55,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2603 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2024-11-16 23:35:55,928 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-11-16 23:35:55,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-11-16 23:35:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-11-16 23:35:55,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-11-16 23:35:55,930 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-11-16 23:35:55,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-11-16 23:35:55,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:55,937 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-11-16 23:35:55,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2024-11-16 23:35:55,938 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-11-16 23:35:55,938 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-11-16 23:35:55,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2024-11-16 23:35:55,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:55,939 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] [2024-11-16 23:35:55,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:35:55,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:35:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -432919169, now seen corresponding path program 1 times [2024-11-16 23:35:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981154959] [2024-11-16 23:35:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:55,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:56,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981154959] [2024-11-16 23:35:56,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981154959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:56,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:56,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 23:35:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422835009] [2024-11-16 23:35:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:56,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:35:56,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:35:56,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:35:56,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 81 [2024-11-16 23:35:56,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 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) [2024-11-16 23:35:56,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:56,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 81 [2024-11-16 23:35:56,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:56,861 INFO L124 PetriNetUnfolderBase]: 92/471 cut-off events. [2024-11-16 23:35:56,862 INFO L125 PetriNetUnfolderBase]: For 187/189 co-relation queries the response was YES. [2024-11-16 23:35:56,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 471 events. 92/471 cut-off events. For 187/189 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2452 event pairs, 14 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 906. Up to 84 conditions per place. [2024-11-16 23:35:56,869 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 17 selfloop transitions, 1 changer transitions 13/136 dead transitions. [2024-11-16 23:35:56,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 136 transitions, 650 flow [2024-11-16 23:35:56,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:35:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 23:35:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 529 transitions. [2024-11-16 23:35:56,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.816358024691358 [2024-11-16 23:35:56,872 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 8 states and 529 transitions. [2024-11-16 23:35:56,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 136 transitions, 650 flow [2024-11-16 23:35:56,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 136 transitions, 632 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:56,884 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 572 flow [2024-11-16 23:35:56,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=572, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2024-11-16 23:35:56,886 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 31 predicate places. [2024-11-16 23:35:56,887 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 572 flow [2024-11-16 23:35:56,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 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) [2024-11-16 23:35:56,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:56,888 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] [2024-11-16 23:35:56,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:35:56,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:35:56,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash 351029623, now seen corresponding path program 1 times [2024-11-16 23:35:56,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:56,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639979275] [2024-11-16 23:35:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:56,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:57,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:57,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639979275] [2024-11-16 23:35:57,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639979275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:57,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:57,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:35:57,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210749934] [2024-11-16 23:35:57,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:57,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:35:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:57,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:35:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:35:58,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:35:58,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 572 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:35:58,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:58,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:35:58,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:58,620 INFO L124 PetriNetUnfolderBase]: 229/697 cut-off events. [2024-11-16 23:35:58,621 INFO L125 PetriNetUnfolderBase]: For 737/743 co-relation queries the response was YES. [2024-11-16 23:35:58,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 697 events. 229/697 cut-off events. For 737/743 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3613 event pairs, 27 based on Foata normal form. 10/704 useless extension candidates. Maximal degree in co-relation 2146. Up to 236 conditions per place. [2024-11-16 23:35:58,626 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 64 selfloop transitions, 36 changer transitions 48/198 dead transitions. [2024-11-16 23:35:58,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 1266 flow [2024-11-16 23:35:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:35:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 23:35:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2024-11-16 23:35:58,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7107583774250441 [2024-11-16 23:35:58,629 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 572 flow. Second operand 14 states and 806 transitions. [2024-11-16 23:35:58,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 1266 flow [2024-11-16 23:35:58,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 198 transitions, 1247 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-16 23:35:58,636 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 814 flow [2024-11-16 23:35:58,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=814, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2024-11-16 23:35:58,638 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-11-16 23:35:58,638 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 814 flow [2024-11-16 23:35:58,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:35:58,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:58,639 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] [2024-11-16 23:35:58,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:35:58,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:35:58,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1567837365, now seen corresponding path program 2 times [2024-11-16 23:35:58,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:58,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892969307] [2024-11-16 23:35:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:59,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:59,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892969307] [2024-11-16 23:35:59,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892969307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:59,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:59,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:35:59,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427772958] [2024-11-16 23:35:59,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:59,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:35:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:35:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:35:59,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:35:59,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 814 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:35:59,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:59,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:35:59,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:00,220 INFO L124 PetriNetUnfolderBase]: 189/619 cut-off events. [2024-11-16 23:36:00,221 INFO L125 PetriNetUnfolderBase]: For 1565/1584 co-relation queries the response was YES. [2024-11-16 23:36:00,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 619 events. 189/619 cut-off events. For 1565/1584 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3187 event pairs, 44 based on Foata normal form. 18/633 useless extension candidates. Maximal degree in co-relation 2353. Up to 256 conditions per place. [2024-11-16 23:36:00,226 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 57 selfloop transitions, 39 changer transitions 37/183 dead transitions. [2024-11-16 23:36:00,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 183 transitions, 1404 flow [2024-11-16 23:36:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 23:36:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 23:36:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 754 transitions. [2024-11-16 23:36:00,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2024-11-16 23:36:00,229 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 814 flow. Second operand 13 states and 754 transitions. [2024-11-16 23:36:00,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 183 transitions, 1404 flow [2024-11-16 23:36:00,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1363 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-16 23:36:00,241 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 855 flow [2024-11-16 23:36:00,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=855, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2024-11-16 23:36:00,242 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 50 predicate places. [2024-11-16 23:36:00,242 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 855 flow [2024-11-16 23:36:00,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:00,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:00,243 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] [2024-11-16 23:36:00,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:36:00,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:00,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1409697683, now seen corresponding path program 1 times [2024-11-16 23:36:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907645622] [2024-11-16 23:36:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:00,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:00,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907645622] [2024-11-16 23:36:00,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907645622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:00,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:00,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:00,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833097136] [2024-11-16 23:36:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:00,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:00,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:01,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:01,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 855 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:01,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:01,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:01,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:01,620 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2024-11-16 23:36:01,620 INFO L125 PetriNetUnfolderBase]: For 1710/1727 co-relation queries the response was YES. [2024-11-16 23:36:01,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 545 events. 163/545 cut-off events. For 1710/1727 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2696 event pairs, 23 based on Foata normal form. 13/554 useless extension candidates. Maximal degree in co-relation 2202. Up to 90 conditions per place. [2024-11-16 23:36:01,625 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 84 selfloop transitions, 38 changer transitions 14/183 dead transitions. [2024-11-16 23:36:01,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 1610 flow [2024-11-16 23:36:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 23:36:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-16 23:36:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2024-11-16 23:36:01,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6903292181069959 [2024-11-16 23:36:01,627 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 855 flow. Second operand 12 states and 671 transitions. [2024-11-16 23:36:01,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 1610 flow [2024-11-16 23:36:01,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1506 flow, removed 5 selfloop flow, removed 11 redundant places. [2024-11-16 23:36:01,638 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 856 flow [2024-11-16 23:36:01,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=856, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2024-11-16 23:36:01,639 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2024-11-16 23:36:01,639 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 856 flow [2024-11-16 23:36:01,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:01,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:01,640 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] [2024-11-16 23:36:01,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:36:01,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:01,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1543047495, now seen corresponding path program 3 times [2024-11-16 23:36:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339026322] [2024-11-16 23:36:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:01,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:02,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339026322] [2024-11-16 23:36:02,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339026322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:02,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:02,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:02,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431101957] [2024-11-16 23:36:02,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:02,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:02,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:02,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:02,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:02,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:02,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 856 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:02,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:02,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:02,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:03,105 INFO L124 PetriNetUnfolderBase]: 169/524 cut-off events. [2024-11-16 23:36:03,106 INFO L125 PetriNetUnfolderBase]: For 1755/1779 co-relation queries the response was YES. [2024-11-16 23:36:03,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 524 events. 169/524 cut-off events. For 1755/1779 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2391 event pairs, 32 based on Foata normal form. 23/543 useless extension candidates. Maximal degree in co-relation 2327. Up to 230 conditions per place. [2024-11-16 23:36:03,110 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 55 selfloop transitions, 42 changer transitions 28/171 dead transitions. [2024-11-16 23:36:03,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1450 flow [2024-11-16 23:36:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:36:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 23:36:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 802 transitions. [2024-11-16 23:36:03,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7072310405643739 [2024-11-16 23:36:03,113 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 856 flow. Second operand 14 states and 802 transitions. [2024-11-16 23:36:03,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1450 flow [2024-11-16 23:36:03,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 171 transitions, 1330 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-16 23:36:03,125 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 917 flow [2024-11-16 23:36:03,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2024-11-16 23:36:03,126 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 49 predicate places. [2024-11-16 23:36:03,126 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 917 flow [2024-11-16 23:36:03,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:03,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:03,127 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] [2024-11-16 23:36:03,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:36:03,127 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:03,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 427421027, now seen corresponding path program 4 times [2024-11-16 23:36:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:03,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823284089] [2024-11-16 23:36:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:03,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:03,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823284089] [2024-11-16 23:36:03,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823284089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:03,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:03,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770964526] [2024-11-16 23:36:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:03,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:03,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:03,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:03,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 917 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:03,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:03,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:03,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:04,354 INFO L124 PetriNetUnfolderBase]: 171/558 cut-off events. [2024-11-16 23:36:04,354 INFO L125 PetriNetUnfolderBase]: For 2977/3000 co-relation queries the response was YES. [2024-11-16 23:36:04,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 558 events. 171/558 cut-off events. For 2977/3000 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2713 event pairs, 27 based on Foata normal form. 19/575 useless extension candidates. Maximal degree in co-relation 2465. Up to 129 conditions per place. [2024-11-16 23:36:04,361 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 114 selfloop transitions, 37 changer transitions 12/209 dead transitions. [2024-11-16 23:36:04,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 209 transitions, 2018 flow [2024-11-16 23:36:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 833 transitions. [2024-11-16 23:36:04,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68559670781893 [2024-11-16 23:36:04,365 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 917 flow. Second operand 15 states and 833 transitions. [2024-11-16 23:36:04,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 209 transitions, 2018 flow [2024-11-16 23:36:04,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 209 transitions, 1690 flow, removed 58 selfloop flow, removed 16 redundant places. [2024-11-16 23:36:04,384 INFO L231 Difference]: Finished difference. Result has 137 places, 147 transitions, 1080 flow [2024-11-16 23:36:04,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1080, PETRI_PLACES=137, PETRI_TRANSITIONS=147} [2024-11-16 23:36:04,387 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 54 predicate places. [2024-11-16 23:36:04,388 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 147 transitions, 1080 flow [2024-11-16 23:36:04,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:04,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:04,388 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] [2024-11-16 23:36:04,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:36:04,389 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:04,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash -937564479, now seen corresponding path program 5 times [2024-11-16 23:36:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:04,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245563833] [2024-11-16 23:36:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:04,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245563833] [2024-11-16 23:36:04,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245563833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:04,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:04,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:04,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703877560] [2024-11-16 23:36:04,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:04,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:04,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:04,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:04,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:05,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:05,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 1080 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:05,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:05,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:05,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:05,609 INFO L124 PetriNetUnfolderBase]: 177/550 cut-off events. [2024-11-16 23:36:05,610 INFO L125 PetriNetUnfolderBase]: For 2499/2531 co-relation queries the response was YES. [2024-11-16 23:36:05,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 550 events. 177/550 cut-off events. For 2499/2531 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2630 event pairs, 33 based on Foata normal form. 25/571 useless extension candidates. Maximal degree in co-relation 2542. Up to 263 conditions per place. [2024-11-16 23:36:05,616 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 71 selfloop transitions, 41 changer transitions 32/190 dead transitions. [2024-11-16 23:36:05,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 190 transitions, 1729 flow [2024-11-16 23:36:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:36:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 23:36:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 787 transitions. [2024-11-16 23:36:05,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6940035273368607 [2024-11-16 23:36:05,619 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 1080 flow. Second operand 14 states and 787 transitions. [2024-11-16 23:36:05,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 190 transitions, 1729 flow [2024-11-16 23:36:05,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 190 transitions, 1657 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-11-16 23:36:05,640 INFO L231 Difference]: Finished difference. Result has 144 places, 143 transitions, 1123 flow [2024-11-16 23:36:05,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1123, PETRI_PLACES=144, PETRI_TRANSITIONS=143} [2024-11-16 23:36:05,642 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 61 predicate places. [2024-11-16 23:36:05,642 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 143 transitions, 1123 flow [2024-11-16 23:36:05,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:05,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:05,644 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] [2024-11-16 23:36:05,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:36:05,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:05,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash -697376083, now seen corresponding path program 6 times [2024-11-16 23:36:05,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:05,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208952337] [2024-11-16 23:36:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:05,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:05,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:05,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208952337] [2024-11-16 23:36:05,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208952337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:05,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:05,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:05,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668071322] [2024-11-16 23:36:05,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:05,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:05,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:05,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:06,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:06,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 143 transitions, 1123 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:06,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:06,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:06,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:06,908 INFO L124 PetriNetUnfolderBase]: 212/657 cut-off events. [2024-11-16 23:36:06,908 INFO L125 PetriNetUnfolderBase]: For 4504/4543 co-relation queries the response was YES. [2024-11-16 23:36:06,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 657 events. 212/657 cut-off events. For 4504/4543 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3475 event pairs, 32 based on Foata normal form. 28/682 useless extension candidates. Maximal degree in co-relation 3067. Up to 220 conditions per place. [2024-11-16 23:36:06,915 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 126 selfloop transitions, 50 changer transitions 16/238 dead transitions. [2024-11-16 23:36:06,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 238 transitions, 2375 flow [2024-11-16 23:36:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-16 23:36:06,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-16 23:36:06,920 INFO L175 Difference]: Start difference. First operand has 144 places, 143 transitions, 1123 flow. Second operand 15 states and 838 transitions. [2024-11-16 23:36:06,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 238 transitions, 2375 flow [2024-11-16 23:36:06,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 238 transitions, 2237 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-16 23:36:06,939 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1521 flow [2024-11-16 23:36:06,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1521, PETRI_PLACES=153, PETRI_TRANSITIONS=170} [2024-11-16 23:36:06,942 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 70 predicate places. [2024-11-16 23:36:06,942 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1521 flow [2024-11-16 23:36:06,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:06,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:06,943 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] [2024-11-16 23:36:06,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:36:06,943 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:06,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 901107943, now seen corresponding path program 7 times [2024-11-16 23:36:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:06,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725169158] [2024-11-16 23:36:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:07,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:07,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725169158] [2024-11-16 23:36:07,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725169158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:07,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:07,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:07,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545713877] [2024-11-16 23:36:07,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:07,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:07,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:07,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:07,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:07,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:07,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 170 transitions, 1521 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:07,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:07,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:07,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:08,201 INFO L124 PetriNetUnfolderBase]: 246/735 cut-off events. [2024-11-16 23:36:08,201 INFO L125 PetriNetUnfolderBase]: For 5786/5825 co-relation queries the response was YES. [2024-11-16 23:36:08,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 735 events. 246/735 cut-off events. For 5786/5825 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4004 event pairs, 41 based on Foata normal form. 28/758 useless extension candidates. Maximal degree in co-relation 3682. Up to 257 conditions per place. [2024-11-16 23:36:08,209 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 143 selfloop transitions, 56 changer transitions 18/263 dead transitions. [2024-11-16 23:36:08,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 2818 flow [2024-11-16 23:36:08,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-11-16 23:36:08,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-11-16 23:36:08,212 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1521 flow. Second operand 15 states and 841 transitions. [2024-11-16 23:36:08,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 2818 flow [2024-11-16 23:36:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 2724 flow, removed 35 selfloop flow, removed 8 redundant places. [2024-11-16 23:36:08,242 INFO L231 Difference]: Finished difference. Result has 166 places, 190 transitions, 1898 flow [2024-11-16 23:36:08,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1898, PETRI_PLACES=166, PETRI_TRANSITIONS=190} [2024-11-16 23:36:08,243 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 83 predicate places. [2024-11-16 23:36:08,243 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 190 transitions, 1898 flow [2024-11-16 23:36:08,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:08,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:08,244 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] [2024-11-16 23:36:08,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:36:08,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:08,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:08,245 INFO L85 PathProgramCache]: Analyzing trace with hash -155447871, now seen corresponding path program 8 times [2024-11-16 23:36:08,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:08,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669462850] [2024-11-16 23:36:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:08,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:08,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:08,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669462850] [2024-11-16 23:36:08,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669462850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:08,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:08,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123207533] [2024-11-16 23:36:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:08,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:08,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:09,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:09,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 190 transitions, 1898 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:09,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:09,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:09,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:09,627 INFO L124 PetriNetUnfolderBase]: 241/724 cut-off events. [2024-11-16 23:36:09,628 INFO L125 PetriNetUnfolderBase]: For 7822/7864 co-relation queries the response was YES. [2024-11-16 23:36:09,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4058 conditions, 724 events. 241/724 cut-off events. For 7822/7864 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3890 event pairs, 23 based on Foata normal form. 35/758 useless extension candidates. Maximal degree in co-relation 4005. Up to 309 conditions per place. [2024-11-16 23:36:09,635 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 142 selfloop transitions, 54 changer transitions 19/261 dead transitions. [2024-11-16 23:36:09,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 261 transitions, 3113 flow [2024-11-16 23:36:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-16 23:36:09,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-16 23:36:09,637 INFO L175 Difference]: Start difference. First operand has 166 places, 190 transitions, 1898 flow. Second operand 15 states and 836 transitions. [2024-11-16 23:36:09,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 261 transitions, 3113 flow [2024-11-16 23:36:09,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 261 transitions, 2976 flow, removed 62 selfloop flow, removed 8 redundant places. [2024-11-16 23:36:09,668 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 2173 flow [2024-11-16 23:36:09,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2173, PETRI_PLACES=177, PETRI_TRANSITIONS=203} [2024-11-16 23:36:09,669 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-11-16 23:36:09,669 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 2173 flow [2024-11-16 23:36:09,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:09,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:09,670 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] [2024-11-16 23:36:09,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:36:09,670 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:09,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:09,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2016461923, now seen corresponding path program 9 times [2024-11-16 23:36:09,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:09,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699107581] [2024-11-16 23:36:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:09,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:09,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:09,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699107581] [2024-11-16 23:36:09,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699107581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:09,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:09,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958738719] [2024-11-16 23:36:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:09,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:09,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:10,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:10,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 203 transitions, 2173 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:10,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:10,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:10,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:10,830 INFO L124 PetriNetUnfolderBase]: 218/686 cut-off events. [2024-11-16 23:36:10,830 INFO L125 PetriNetUnfolderBase]: For 8055/8099 co-relation queries the response was YES. [2024-11-16 23:36:10,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 686 events. 218/686 cut-off events. For 8055/8099 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3677 event pairs, 20 based on Foata normal form. 40/725 useless extension candidates. Maximal degree in co-relation 3818. Up to 340 conditions per place. [2024-11-16 23:36:10,837 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 123 selfloop transitions, 48 changer transitions 30/247 dead transitions. [2024-11-16 23:36:10,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 247 transitions, 3042 flow [2024-11-16 23:36:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-11-16 23:36:10,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-11-16 23:36:10,839 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 2173 flow. Second operand 15 states and 834 transitions. [2024-11-16 23:36:10,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 247 transitions, 3042 flow [2024-11-16 23:36:10,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 247 transitions, 2911 flow, removed 46 selfloop flow, removed 9 redundant places. [2024-11-16 23:36:10,872 INFO L231 Difference]: Finished difference. Result has 186 places, 199 transitions, 2147 flow [2024-11-16 23:36:10,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2062, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2147, PETRI_PLACES=186, PETRI_TRANSITIONS=199} [2024-11-16 23:36:10,873 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 103 predicate places. [2024-11-16 23:36:10,873 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 199 transitions, 2147 flow [2024-11-16 23:36:10,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:10,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:10,874 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] [2024-11-16 23:36:10,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:36:10,874 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:10,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1314078941, now seen corresponding path program 10 times [2024-11-16 23:36:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162059019] [2024-11-16 23:36:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:11,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162059019] [2024-11-16 23:36:11,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162059019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:11,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:11,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692650941] [2024-11-16 23:36:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:11,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:11,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:11,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:11,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:11,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 199 transitions, 2147 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:11,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:11,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:11,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:12,084 INFO L124 PetriNetUnfolderBase]: 212/684 cut-off events. [2024-11-16 23:36:12,085 INFO L125 PetriNetUnfolderBase]: For 8795/8835 co-relation queries the response was YES. [2024-11-16 23:36:12,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 684 events. 212/684 cut-off events. For 8795/8835 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3701 event pairs, 27 based on Foata normal form. 44/726 useless extension candidates. Maximal degree in co-relation 3807. Up to 355 conditions per place. [2024-11-16 23:36:12,092 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 116 selfloop transitions, 58 changer transitions 26/246 dead transitions. [2024-11-16 23:36:12,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 246 transitions, 3001 flow [2024-11-16 23:36:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 842 transitions. [2024-11-16 23:36:12,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6930041152263374 [2024-11-16 23:36:12,094 INFO L175 Difference]: Start difference. First operand has 186 places, 199 transitions, 2147 flow. Second operand 15 states and 842 transitions. [2024-11-16 23:36:12,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 246 transitions, 3001 flow [2024-11-16 23:36:12,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 246 transitions, 2899 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-11-16 23:36:12,123 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 2271 flow [2024-11-16 23:36:12,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2068, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2271, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2024-11-16 23:36:12,123 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 109 predicate places. [2024-11-16 23:36:12,124 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 2271 flow [2024-11-16 23:36:12,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:12,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:12,124 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] [2024-11-16 23:36:12,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:36:12,124 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:12,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1251688225, now seen corresponding path program 11 times [2024-11-16 23:36:12,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:12,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088725421] [2024-11-16 23:36:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:12,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:12,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088725421] [2024-11-16 23:36:12,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088725421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:12,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:12,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336544228] [2024-11-16 23:36:12,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:12,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:12,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:12,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:12,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:12,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:12,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 2271 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:12,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:12,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:12,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:13,382 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-11-16 23:36:13,382 INFO L125 PetriNetUnfolderBase]: For 12697/12737 co-relation queries the response was YES. [2024-11-16 23:36:13,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 796 events. 250/796 cut-off events. For 12697/12737 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4567 event pairs, 33 based on Foata normal form. 31/825 useless extension candidates. Maximal degree in co-relation 4747. Up to 359 conditions per place. [2024-11-16 23:36:13,395 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 153 selfloop transitions, 62 changer transitions 13/274 dead transitions. [2024-11-16 23:36:13,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 274 transitions, 3705 flow [2024-11-16 23:36:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-16 23:36:13,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-16 23:36:13,401 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 2271 flow. Second operand 15 states and 838 transitions. [2024-11-16 23:36:13,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 274 transitions, 3705 flow [2024-11-16 23:36:13,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 274 transitions, 3471 flow, removed 53 selfloop flow, removed 14 redundant places. [2024-11-16 23:36:13,458 INFO L231 Difference]: Finished difference. Result has 196 places, 222 transitions, 2675 flow [2024-11-16 23:36:13,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2675, PETRI_PLACES=196, PETRI_TRANSITIONS=222} [2024-11-16 23:36:13,459 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 113 predicate places. [2024-11-16 23:36:13,459 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 222 transitions, 2675 flow [2024-11-16 23:36:13,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:13,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:13,460 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] [2024-11-16 23:36:13,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:36:13,460 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:13,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash 12765315, now seen corresponding path program 12 times [2024-11-16 23:36:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:13,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197878698] [2024-11-16 23:36:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:13,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:13,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:13,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197878698] [2024-11-16 23:36:13,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197878698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:13,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:13,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:13,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393903535] [2024-11-16 23:36:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:13,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:13,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:14,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:14,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 222 transitions, 2675 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:14,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:14,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:14,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:14,681 INFO L124 PetriNetUnfolderBase]: 256/834 cut-off events. [2024-11-16 23:36:14,681 INFO L125 PetriNetUnfolderBase]: For 13097/13138 co-relation queries the response was YES. [2024-11-16 23:36:14,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 834 events. 256/834 cut-off events. For 13097/13138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4986 event pairs, 36 based on Foata normal form. 36/865 useless extension candidates. Maximal degree in co-relation 5063. Up to 444 conditions per place. [2024-11-16 23:36:14,688 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 60 changer transitions 23/267 dead transitions. [2024-11-16 23:36:14,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 267 transitions, 3657 flow [2024-11-16 23:36:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-16 23:36:14,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-16 23:36:14,690 INFO L175 Difference]: Start difference. First operand has 196 places, 222 transitions, 2675 flow. Second operand 15 states and 836 transitions. [2024-11-16 23:36:14,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 267 transitions, 3657 flow [2024-11-16 23:36:14,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 267 transitions, 3499 flow, removed 71 selfloop flow, removed 7 redundant places. [2024-11-16 23:36:14,735 INFO L231 Difference]: Finished difference. Result has 207 places, 227 transitions, 2771 flow [2024-11-16 23:36:14,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2771, PETRI_PLACES=207, PETRI_TRANSITIONS=227} [2024-11-16 23:36:14,735 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 124 predicate places. [2024-11-16 23:36:14,735 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 227 transitions, 2771 flow [2024-11-16 23:36:14,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:14,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:14,736 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] [2024-11-16 23:36:14,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:36:14,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:14,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:14,737 INFO L85 PathProgramCache]: Analyzing trace with hash 170221431, now seen corresponding path program 13 times [2024-11-16 23:36:14,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:14,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186688450] [2024-11-16 23:36:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:14,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186688450] [2024-11-16 23:36:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186688450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:15,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:15,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844511098] [2024-11-16 23:36:15,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:15,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:15,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:15,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 227 transitions, 2771 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:15,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:15,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:15,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:16,001 INFO L124 PetriNetUnfolderBase]: 245/810 cut-off events. [2024-11-16 23:36:16,001 INFO L125 PetriNetUnfolderBase]: For 13695/13731 co-relation queries the response was YES. [2024-11-16 23:36:16,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4979 conditions, 810 events. 245/810 cut-off events. For 13695/13731 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4798 event pairs, 36 based on Foata normal form. 35/837 useless extension candidates. Maximal degree in co-relation 4912. Up to 383 conditions per place. [2024-11-16 23:36:16,009 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 139 selfloop transitions, 67 changer transitions 26/278 dead transitions. [2024-11-16 23:36:16,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 3896 flow [2024-11-16 23:36:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:16,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 837 transitions. [2024-11-16 23:36:16,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-16 23:36:16,012 INFO L175 Difference]: Start difference. First operand has 207 places, 227 transitions, 2771 flow. Second operand 15 states and 837 transitions. [2024-11-16 23:36:16,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 3896 flow [2024-11-16 23:36:16,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 278 transitions, 3786 flow, removed 31 selfloop flow, removed 11 redundant places. [2024-11-16 23:36:16,064 INFO L231 Difference]: Finished difference. Result has 215 places, 227 transitions, 2911 flow [2024-11-16 23:36:16,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2700, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2911, PETRI_PLACES=215, PETRI_TRANSITIONS=227} [2024-11-16 23:36:16,065 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 132 predicate places. [2024-11-16 23:36:16,065 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 227 transitions, 2911 flow [2024-11-16 23:36:16,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:16,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:16,066 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] [2024-11-16 23:36:16,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:36:16,066 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:16,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1102456447, now seen corresponding path program 14 times [2024-11-16 23:36:16,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:16,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872801625] [2024-11-16 23:36:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:16,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:16,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872801625] [2024-11-16 23:36:16,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872801625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:16,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:16,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:16,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474859835] [2024-11-16 23:36:16,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:16,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:16,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:16,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:16,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 227 transitions, 2911 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:16,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:16,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:16,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:17,334 INFO L124 PetriNetUnfolderBase]: 230/778 cut-off events. [2024-11-16 23:36:17,334 INFO L125 PetriNetUnfolderBase]: For 13615/13655 co-relation queries the response was YES. [2024-11-16 23:36:17,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 778 events. 230/778 cut-off events. For 13615/13655 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4591 event pairs, 38 based on Foata normal form. 27/795 useless extension candidates. Maximal degree in co-relation 4778. Up to 443 conditions per place. [2024-11-16 23:36:17,342 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 137 selfloop transitions, 55 changer transitions 15/253 dead transitions. [2024-11-16 23:36:17,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 3622 flow [2024-11-16 23:36:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:36:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 23:36:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2024-11-16 23:36:17,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.681657848324515 [2024-11-16 23:36:17,344 INFO L175 Difference]: Start difference. First operand has 215 places, 227 transitions, 2911 flow. Second operand 14 states and 773 transitions. [2024-11-16 23:36:17,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 3622 flow [2024-11-16 23:36:17,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 253 transitions, 3475 flow, removed 56 selfloop flow, removed 8 redundant places. [2024-11-16 23:36:17,396 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 2930 flow [2024-11-16 23:36:17,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2930, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2024-11-16 23:36:17,397 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 138 predicate places. [2024-11-16 23:36:17,397 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 2930 flow [2024-11-16 23:36:17,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:17,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:17,398 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] [2024-11-16 23:36:17,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:36:17,398 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:17,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:17,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1144291063, now seen corresponding path program 15 times [2024-11-16 23:36:17,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:17,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125240919] [2024-11-16 23:36:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:17,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125240919] [2024-11-16 23:36:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125240919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:17,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585996578] [2024-11-16 23:36:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:17,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:18,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:18,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 2930 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:18,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:18,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:18,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:18,624 INFO L124 PetriNetUnfolderBase]: 221/754 cut-off events. [2024-11-16 23:36:18,624 INFO L125 PetriNetUnfolderBase]: For 13564/13594 co-relation queries the response was YES. [2024-11-16 23:36:18,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 754 events. 221/754 cut-off events. For 13564/13594 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4393 event pairs, 38 based on Foata normal form. 28/769 useless extension candidates. Maximal degree in co-relation 4566. Up to 408 conditions per place. [2024-11-16 23:36:18,635 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 135 selfloop transitions, 55 changer transitions 29/265 dead transitions. [2024-11-16 23:36:18,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 265 transitions, 3835 flow [2024-11-16 23:36:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:36:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 23:36:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 831 transitions. [2024-11-16 23:36:18,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6839506172839506 [2024-11-16 23:36:18,639 INFO L175 Difference]: Start difference. First operand has 221 places, 228 transitions, 2930 flow. Second operand 15 states and 831 transitions. [2024-11-16 23:36:18,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 265 transitions, 3835 flow [2024-11-16 23:36:18,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 265 transitions, 3678 flow, removed 32 selfloop flow, removed 12 redundant places. [2024-11-16 23:36:18,708 INFO L231 Difference]: Finished difference. Result has 227 places, 221 transitions, 2801 flow [2024-11-16 23:36:18,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2805, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2801, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2024-11-16 23:36:18,709 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 144 predicate places. [2024-11-16 23:36:18,709 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 2801 flow [2024-11-16 23:36:18,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-11-16 23:36:18,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:18,710 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] [2024-11-16 23:36:18,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:36:18,710 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:18,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1329985270, now seen corresponding path program 1 times [2024-11-16 23:36:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:18,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610447989] [2024-11-16 23:36:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:18,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:18,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610447989] [2024-11-16 23:36:18,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610447989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:18,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:18,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449957316] [2024-11-16 23:36:18,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:18,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:18,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:19,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:19,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 2801 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:19,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:19,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:19,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:19,884 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-11-16 23:36:19,885 INFO L125 PetriNetUnfolderBase]: For 12030/12056 co-relation queries the response was YES. [2024-11-16 23:36:19,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4330 conditions, 740 events. 208/740 cut-off events. For 12030/12056 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4326 event pairs, 16 based on Foata normal form. 13/749 useless extension candidates. Maximal degree in co-relation 4257. Up to 223 conditions per place. [2024-11-16 23:36:19,893 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-11-16 23:36:19,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 262 transitions, 3727 flow [2024-11-16 23:36:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 23:36:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-16 23:36:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-11-16 23:36:19,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-11-16 23:36:19,896 INFO L175 Difference]: Start difference. First operand has 227 places, 221 transitions, 2801 flow. Second operand 18 states and 977 transitions. [2024-11-16 23:36:19,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 262 transitions, 3727 flow [2024-11-16 23:36:19,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 3614 flow, removed 40 selfloop flow, removed 12 redundant places. [2024-11-16 23:36:19,952 INFO L231 Difference]: Finished difference. Result has 224 places, 210 transitions, 2657 flow [2024-11-16 23:36:19,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2657, PETRI_PLACES=224, PETRI_TRANSITIONS=210} [2024-11-16 23:36:19,952 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 141 predicate places. [2024-11-16 23:36:19,952 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 210 transitions, 2657 flow [2024-11-16 23:36:19,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:19,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:19,953 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] [2024-11-16 23:36:19,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:36:19,953 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:19,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash 629452018, now seen corresponding path program 2 times [2024-11-16 23:36:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:19,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969369420] [2024-11-16 23:36:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969369420] [2024-11-16 23:36:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969369420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480224197] [2024-11-16 23:36:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:20,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:20,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:20,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 210 transitions, 2657 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:20,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:20,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:20,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:21,042 INFO L124 PetriNetUnfolderBase]: 195/717 cut-off events. [2024-11-16 23:36:21,042 INFO L125 PetriNetUnfolderBase]: For 12780/12806 co-relation queries the response was YES. [2024-11-16 23:36:21,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 717 events. 195/717 cut-off events. For 12780/12806 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4172 event pairs, 16 based on Foata normal form. 13/726 useless extension candidates. Maximal degree in co-relation 4108. Up to 223 conditions per place. [2024-11-16 23:36:21,048 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-11-16 23:36:21,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 252 transitions, 3632 flow [2024-11-16 23:36:21,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 23:36:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-16 23:36:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-11-16 23:36:21,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-11-16 23:36:21,050 INFO L175 Difference]: Start difference. First operand has 224 places, 210 transitions, 2657 flow. Second operand 20 states and 1077 transitions. [2024-11-16 23:36:21,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 252 transitions, 3632 flow [2024-11-16 23:36:21,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 252 transitions, 3425 flow, removed 34 selfloop flow, removed 17 redundant places. [2024-11-16 23:36:21,106 INFO L231 Difference]: Finished difference. Result has 228 places, 198 transitions, 2431 flow [2024-11-16 23:36:21,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2512, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2431, PETRI_PLACES=228, PETRI_TRANSITIONS=198} [2024-11-16 23:36:21,107 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 145 predicate places. [2024-11-16 23:36:21,107 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 198 transitions, 2431 flow [2024-11-16 23:36:21,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:21,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:21,107 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] [2024-11-16 23:36:21,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 23:36:21,108 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-16 23:36:21,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1066218888, now seen corresponding path program 3 times [2024-11-16 23:36:21,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:21,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679440590] [2024-11-16 23:36:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:36:21,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679440590] [2024-11-16 23:36:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679440590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:21,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:21,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 23:36:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174468973] [2024-11-16 23:36:21,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:21,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:36:21,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:21,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:36:21,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:36:21,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-16 23:36:21,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 198 transitions, 2431 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:21,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:21,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-16 23:36:21,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:22,280 INFO L124 PetriNetUnfolderBase]: 155/602 cut-off events. [2024-11-16 23:36:22,281 INFO L125 PetriNetUnfolderBase]: For 10891/10917 co-relation queries the response was YES. [2024-11-16 23:36:22,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 602 events. 155/602 cut-off events. For 10891/10917 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3331 event pairs, 2 based on Foata normal form. 43/645 useless extension candidates. Maximal degree in co-relation 3326. Up to 159 conditions per place. [2024-11-16 23:36:22,284 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-11-16 23:36:22,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 260 transitions, 3520 flow [2024-11-16 23:36:22,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 23:36:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-16 23:36:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-11-16 23:36:22,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-11-16 23:36:22,286 INFO L175 Difference]: Start difference. First operand has 228 places, 198 transitions, 2431 flow. Second operand 24 states and 1282 transitions. [2024-11-16 23:36:22,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 260 transitions, 3520 flow [2024-11-16 23:36:22,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 260 transitions, 3255 flow, removed 47 selfloop flow, removed 22 redundant places. [2024-11-16 23:36:22,320 INFO L231 Difference]: Finished difference. Result has 214 places, 0 transitions, 0 flow [2024-11-16 23:36:22,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=214, PETRI_TRANSITIONS=0} [2024-11-16 23:36:22,320 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 131 predicate places. [2024-11-16 23:36:22,320 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 0 transitions, 0 flow [2024-11-16 23:36:22,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-11-16 23:36:22,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-16 23:36:22,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-16 23:36:22,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-11-16 23:36:22,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-16 23:36:22,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 23:36:22,325 INFO L407 BasicCegarLoop]: Path program histogram: [15, 3, 1, 1, 1, 1] [2024-11-16 23:36:22,332 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 23:36:22,332 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:36:22,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:36:22 BasicIcfg [2024-11-16 23:36:22,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:36:22,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:36:22,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:36:22,337 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:36:22,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:53" (3/4) ... [2024-11-16 23:36:22,340 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 23:36:22,342 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-16 23:36:22,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 23:36:22,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-16 23:36:22,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-16 23:36:22,427 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:36:22,427 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 23:36:22,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:36:22,428 INFO L158 Benchmark]: Toolchain (without parser) took 29803.01ms. Allocated memory was 195.0MB in the beginning and 534.8MB in the end (delta: 339.7MB). Free memory was 125.1MB in the beginning and 228.5MB in the end (delta: -103.4MB). Peak memory consumption was 239.2MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,428 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:36:22,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.68ms. Allocated memory is still 195.0MB. Free memory was 124.9MB in the beginning and 149.3MB in the end (delta: -24.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.57ms. Allocated memory is still 195.0MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,429 INFO L158 Benchmark]: Boogie Preprocessor took 24.58ms. Allocated memory is still 195.0MB. Free memory was 147.2MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,429 INFO L158 Benchmark]: IcfgBuilder took 410.17ms. Allocated memory is still 195.0MB. Free memory was 146.1MB in the beginning and 129.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,429 INFO L158 Benchmark]: TraceAbstraction took 28545.06ms. Allocated memory was 195.0MB in the beginning and 534.8MB in the end (delta: 339.7MB). Free memory was 128.3MB in the beginning and 232.7MB in the end (delta: -104.4MB). Peak memory consumption was 238.4MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,429 INFO L158 Benchmark]: Witness Printer took 90.40ms. Allocated memory is still 534.8MB. Free memory was 232.7MB in the beginning and 228.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 23:36:22,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.68ms. Allocated memory is still 195.0MB. Free memory was 124.9MB in the beginning and 149.3MB in the end (delta: -24.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.57ms. Allocated memory is still 195.0MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.58ms. Allocated memory is still 195.0MB. Free memory was 147.2MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 410.17ms. Allocated memory is still 195.0MB. Free memory was 146.1MB in the beginning and 129.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28545.06ms. Allocated memory was 195.0MB in the beginning and 534.8MB in the end (delta: 339.7MB). Free memory was 128.3MB in the beginning and 232.7MB in the end (delta: -104.4MB). Peak memory consumption was 238.4MB. Max. memory is 16.1GB. * Witness Printer took 90.40ms. Allocated memory is still 534.8MB. Free memory was 232.7MB in the beginning and 228.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.4s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7931 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6856 mSDsluCounter, 14553 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13923 mSDsCounter, 650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26580 IncrementalHoareTripleChecker+Invalid, 27230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 650 mSolverCounterUnsat, 630 mSDtfsCounter, 26580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 463 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2930occurred in iteration=18, InterpolantAutomatonStates: 313, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1278 NumberOfCodeBlocks, 1278 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1256 ConstructedInterpolants, 0 QuantifiedInterpolants, 8765 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 23:36:22,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE