./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:53:03,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:53:03,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:53:03,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:53:03,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:53:03,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:53:03,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:53:03,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:53:03,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:53:03,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:53:03,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:53:03,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:53:03,565 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:53:03,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:53:03,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:53:03,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:53:03,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:53:03,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:53:03,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:53:03,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:53:03,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:53:03,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:53:03,568 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:53:03,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:53:03,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:53:03,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:53:03,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:53:03,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:53:03,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:53:03,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:53:03,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:53:03,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:53:03,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:53:03,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:53:03,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:53:03,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:53:03,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:53:03,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:53:03,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:53:03,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:53:03,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:53:03,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2024-10-13 09:53:03,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:53:03,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:53:03,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:53:03,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:53:03,906 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:53:03,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-13 09:53:05,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:53:05,613 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:53:05,613 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-13 09:53:05,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42adf3c3f/bb229a89084540e2af77a7f1d7a1721d/FLAG9626ffdd7 [2024-10-13 09:53:05,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42adf3c3f/bb229a89084540e2af77a7f1d7a1721d [2024-10-13 09:53:05,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:53:05,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:53:05,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:53:05,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:53:05,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:53:05,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:53:05" (1/1) ... [2024-10-13 09:53:05,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71855e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:05, skipping insertion in model container [2024-10-13 09:53:05,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:53:05" (1/1) ... [2024-10-13 09:53:05,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:53:05,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:53:06,008 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:53:06,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:53:06,094 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:53:06,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06 WrapperNode [2024-10-13 09:53:06,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:53:06,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:53:06,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:53:06,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:53:06,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,157 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 323 [2024-10-13 09:53:06,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:53:06,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:53:06,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:53:06,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:53:06,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:53:06,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:53:06,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:53:06,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:53:06,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (1/1) ... [2024-10-13 09:53:06,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:53:06,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:53:06,250 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) [2024-10-13 09:53:06,252 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 [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-13 09:53:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:53:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-13 09:53:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-13 09:53:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:53:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:53:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:53:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:53:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:53:06,288 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:53:06,489 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:53:06,491 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:53:06,926 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:53:06,927 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:53:06,957 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:53:06,957 INFO L314 CfgBuilder]: Removed 24 assume(true) statements. [2024-10-13 09:53:06,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:53:06 BoogieIcfgContainer [2024-10-13 09:53:06,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:53:06,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:53:06,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:53:06,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:53:06,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:53:05" (1/3) ... [2024-10-13 09:53:06,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661e2c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:53:06, skipping insertion in model container [2024-10-13 09:53:06,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:06" (2/3) ... [2024-10-13 09:53:06,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661e2c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:53:06, skipping insertion in model container [2024-10-13 09:53:06,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:53:06" (3/3) ... [2024-10-13 09:53:06,968 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2024-10-13 09:53:06,981 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:53:06,982 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-13 09:53:06,982 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:53:07,065 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 09:53:07,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 329 transitions, 678 flow [2024-10-13 09:53:07,357 INFO L124 PetriNetUnfolderBase]: 61/610 cut-off events. [2024-10-13 09:53:07,361 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 09:53:07,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 610 events. 61/610 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3146 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 340. Up to 8 conditions per place. [2024-10-13 09:53:07,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 329 transitions, 678 flow [2024-10-13 09:53:07,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 329 transitions, 678 flow [2024-10-13 09:53:07,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:53:07,413 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;@f2c0825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:53:07,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-13 09:53:07,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:53:07,426 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-13 09:53:07,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:53:07,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:07,427 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] [2024-10-13 09:53:07,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:53:07,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1870488992, now seen corresponding path program 1 times [2024-10-13 09:53:07,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:07,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141303400] [2024-10-13 09:53:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141303400] [2024-10-13 09:53:08,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141303400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:08,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:08,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078932168] [2024-10-13 09:53:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:08,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:08,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:08,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 329 [2024-10-13 09:53:08,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 329 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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) [2024-10-13 09:53:08,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:08,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 329 [2024-10-13 09:53:08,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:16,773 INFO L124 PetriNetUnfolderBase]: 25883/66270 cut-off events. [2024-10-13 09:53:16,775 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2024-10-13 09:53:16,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105965 conditions, 66270 events. 25883/66270 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 817743 event pairs, 23170 based on Foata normal form. 11017/72756 useless extension candidates. Maximal degree in co-relation 102576. Up to 39291 conditions per place. [2024-10-13 09:53:17,205 INFO L140 encePairwiseOnDemand]: 274/329 looper letters, 119 selfloop transitions, 86 changer transitions 0/414 dead transitions. [2024-10-13 09:53:17,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 414 transitions, 1258 flow [2024-10-13 09:53:17,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2024-10-13 09:53:17,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78419452887538 [2024-10-13 09:53:17,228 INFO L175 Difference]: Start difference. First operand has 300 places, 329 transitions, 678 flow. Second operand 6 states and 1548 transitions. [2024-10-13 09:53:17,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 414 transitions, 1258 flow [2024-10-13 09:53:17,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 414 transitions, 1258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:53:17,251 INFO L231 Difference]: Finished difference. Result has 306 places, 382 transitions, 1180 flow [2024-10-13 09:53:17,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1180, PETRI_PLACES=306, PETRI_TRANSITIONS=382} [2024-10-13 09:53:17,256 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 6 predicate places. [2024-10-13 09:53:17,256 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 382 transitions, 1180 flow [2024-10-13 09:53:17,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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) [2024-10-13 09:53:17,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:17,258 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] [2024-10-13 09:53:17,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:53:17,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:53:17,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1797419805, now seen corresponding path program 1 times [2024-10-13 09:53:17,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262568382] [2024-10-13 09:53:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262568382] [2024-10-13 09:53:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262568382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:17,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:53:17,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099621807] [2024-10-13 09:53:17,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:17,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:53:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:53:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:53:17,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 329 [2024-10-13 09:53:17,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 382 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2024-10-13 09:53:17,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:17,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 329 [2024-10-13 09:53:17,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:17,965 INFO L124 PetriNetUnfolderBase]: 504/4050 cut-off events. [2024-10-13 09:53:17,965 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2024-10-13 09:53:17,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5334 conditions, 4050 events. 504/4050 cut-off events. For 274/296 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 38535 event pairs, 280 based on Foata normal form. 1/3690 useless extension candidates. Maximal degree in co-relation 4805. Up to 565 conditions per place. [2024-10-13 09:53:18,000 INFO L140 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2024-10-13 09:53:18,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 390 transitions, 1270 flow [2024-10-13 09:53:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:53:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:53:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2024-10-13 09:53:18,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8611955420466059 [2024-10-13 09:53:18,002 INFO L175 Difference]: Start difference. First operand has 306 places, 382 transitions, 1180 flow. Second operand 3 states and 850 transitions. [2024-10-13 09:53:18,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 390 transitions, 1270 flow [2024-10-13 09:53:18,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 390 transitions, 1270 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:53:18,017 INFO L231 Difference]: Finished difference. Result has 309 places, 382 transitions, 1191 flow [2024-10-13 09:53:18,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1191, PETRI_PLACES=309, PETRI_TRANSITIONS=382} [2024-10-13 09:53:18,019 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 9 predicate places. [2024-10-13 09:53:18,019 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 382 transitions, 1191 flow [2024-10-13 09:53:18,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2024-10-13 09:53:18,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:18,020 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:53:18,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:53:18,020 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:53:18,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash -987438390, now seen corresponding path program 1 times [2024-10-13 09:53:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073957624] [2024-10-13 09:53:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:18,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:53:18,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:53:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:53:18,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:53:18,100 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:53:18,101 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-10-13 09:53:18,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-10-13 09:53:18,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-10-13 09:53:18,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-10-13 09:53:18,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-10-13 09:53:18,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-10-13 09:53:18,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-10-13 09:53:18,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-10-13 09:53:18,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-10-13 09:53:18,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-10-13 09:53:18,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-10-13 09:53:18,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-10-13 09:53:18,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-10-13 09:53:18,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-10-13 09:53:18,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:53:18,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:53:18,113 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:53:18,113 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:53:18,216 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-13 09:53:18,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 492 places, 547 transitions, 1138 flow [2024-10-13 09:53:18,757 INFO L124 PetriNetUnfolderBase]: 205/1752 cut-off events. [2024-10-13 09:53:18,758 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-13 09:53:18,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 1752 events. 205/1752 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 12043 event pairs, 1 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 1061. Up to 32 conditions per place. [2024-10-13 09:53:18,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 492 places, 547 transitions, 1138 flow [2024-10-13 09:53:18,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 492 places, 547 transitions, 1138 flow [2024-10-13 09:53:18,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:53:18,841 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;@f2c0825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:53:18,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-10-13 09:53:18,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:53:18,850 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-13 09:53:18,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:53:18,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:18,850 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] [2024-10-13 09:53:18,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-10-13 09:53:18,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash 970183105, now seen corresponding path program 1 times [2024-10-13 09:53:18,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:18,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117311022] [2024-10-13 09:53:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:18,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:19,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:19,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117311022] [2024-10-13 09:53:19,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117311022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:19,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:19,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:19,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902351899] [2024-10-13 09:53:19,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:19,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:19,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:19,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:19,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:20,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 547 [2024-10-13 09:53:20,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 547 transitions, 1138 flow. Second operand has 6 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 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) [2024-10-13 09:53:20,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:20,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 547 [2024-10-13 09:53:20,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand