./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 61a67961 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-wip.fs.cvc5-61a6796-m [2024-10-14 17:07:52,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:07:52,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:07:52,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:07:52,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:07:52,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:07:52,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:07:52,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:07:52,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:07:52,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:07:52,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:07:52,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:07:52,791 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:07:52,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:07:52,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:07:52,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:07:52,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:07:52,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:07:52,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:07:52,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:07:52,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:07:52,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:07:52,796 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:07:52,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:07:52,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:07:52,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:07:52,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:07:52,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:07:52,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:07:52,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:07:52,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:07:52,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:07:52,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:07:52,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:07:52,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:07:52,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:07:52,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:07:52,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:07:52,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:07:52,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:07:52,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:07:52,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2024-10-14 17:07:52,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:07:53,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:07:53,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:07:53,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:07:53,016 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:07:53,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-14 17:07:54,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:07:54,559 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:07:54,560 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-10-14 17:07:54,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f604b737d/eac8bb77ac8d4bad9e13330fff1e5e8f/FLAGa92ca39f7 [2024-10-14 17:07:54,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f604b737d/eac8bb77ac8d4bad9e13330fff1e5e8f [2024-10-14 17:07:54,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:07:54,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:07:54,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:07:54,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:07:54,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:07:54,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:07:54" (1/1) ... [2024-10-14 17:07:54,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49523a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:54, skipping insertion in model container [2024-10-14 17:07:54,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:07:54" (1/1) ... [2024-10-14 17:07:54,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:07:54,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:07:54,959 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:07:55,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:07:55,049 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:07:55,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55 WrapperNode [2024-10-14 17:07:55,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:07:55,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:07:55,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:07:55,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:07:55,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,112 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 323 [2024-10-14 17:07:55,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:07:55,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:07:55,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:07:55,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:07:55,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,165 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:07:55,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:07:55,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:07:55,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:07:55,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (1/1) ... [2024-10-14 17:07:55,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:07:55,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:07:55,195 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) [2024-10-14 17:07:55,198 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 [2024-10-14 17:07:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:07:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-14 17:07:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-14 17:07:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-14 17:07:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:07:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:07:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:07:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:07:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:07:55,241 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:07:55,378 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:07:55,380 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:07:55,767 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:07:55,767 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:07:55,818 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:07:55,818 INFO L314 CfgBuilder]: Removed 24 assume(true) statements. [2024-10-14 17:07:55,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:07:55 BoogieIcfgContainer [2024-10-14 17:07:55,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:07:55,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:07:55,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:07:55,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:07:55,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:07:54" (1/3) ... [2024-10-14 17:07:55,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd7f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:07:55, skipping insertion in model container [2024-10-14 17:07:55,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:07:55" (2/3) ... [2024-10-14 17:07:55,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd7f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:07:55, skipping insertion in model container [2024-10-14 17:07:55,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:07:55" (3/3) ... [2024-10-14 17:07:55,827 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2024-10-14 17:07:55,842 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:07:55,843 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-14 17:07:55,843 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:07:55,935 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 17:07:55,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 329 transitions, 678 flow [2024-10-14 17:07:56,141 INFO L124 PetriNetUnfolderBase]: 61/610 cut-off events. [2024-10-14 17:07:56,142 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 17:07:56,153 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. [2024-10-14 17:07:56,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 329 transitions, 678 flow [2024-10-14 17:07:56,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 329 transitions, 678 flow [2024-10-14 17:07:56,168 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:07:56,173 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;@12a7df63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:07:56,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-14 17:07:56,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:07:56,179 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-14 17:07:56,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:07:56,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:07:56,179 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] [2024-10-14 17:07:56,180 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)] === [2024-10-14 17:07:56,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:07:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1870488992, now seen corresponding path program 1 times [2024-10-14 17:07:56,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:07:56,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629357564] [2024-10-14 17:07:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:07:56,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:07:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:07:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:07:56,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:07:56,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629357564] [2024-10-14 17:07:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629357564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:07:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:07:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:07:56,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136618187] [2024-10-14 17:07:56,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:07:56,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:07:56,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:07:56,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:07:56,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:07:57,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 329 [2024-10-14 17:07:57,225 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) [2024-10-14 17:07:57,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:07:57,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 329 [2024-10-14 17:07:57,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:08:03,824 INFO L124 PetriNetUnfolderBase]: 25883/66270 cut-off events. [2024-10-14 17:08:03,824 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2024-10-14 17:08:04,081 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. [2024-10-14 17:08:04,330 INFO L140 encePairwiseOnDemand]: 274/329 looper letters, 119 selfloop transitions, 86 changer transitions 0/414 dead transitions. [2024-10-14 17:08:04,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 414 transitions, 1258 flow [2024-10-14 17:08:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:08:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:08:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2024-10-14 17:08:04,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78419452887538 [2024-10-14 17:08:04,352 INFO L175 Difference]: Start difference. First operand has 300 places, 329 transitions, 678 flow. Second operand 6 states and 1548 transitions. [2024-10-14 17:08:04,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 414 transitions, 1258 flow [2024-10-14 17:08:04,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 414 transitions, 1258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:08:04,371 INFO L231 Difference]: Finished difference. Result has 306 places, 382 transitions, 1180 flow [2024-10-14 17:08:04,373 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} [2024-10-14 17:08:04,377 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 6 predicate places. [2024-10-14 17:08:04,377 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 382 transitions, 1180 flow [2024-10-14 17:08:04,378 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) [2024-10-14 17:08:04,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:08:04,378 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] [2024-10-14 17:08:04,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:08:04,379 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)] === [2024-10-14 17:08:04,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:08:04,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1797419805, now seen corresponding path program 1 times [2024-10-14 17:08:04,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:08:04,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720297868] [2024-10-14 17:08:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:08:04,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:08:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:08:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:08:04,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:08:04,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720297868] [2024-10-14 17:08:04,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720297868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:08:04,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:08:04,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:08:04,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908393328] [2024-10-14 17:08:04,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:08:04,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:08:04,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:08:04,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:08:04,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:08:04,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 329 [2024-10-14 17:08:04,449 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) [2024-10-14 17:08:04,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:08:04,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 329 [2024-10-14 17:08:04,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:08:04,797 INFO L124 PetriNetUnfolderBase]: 504/4050 cut-off events. [2024-10-14 17:08:04,798 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2024-10-14 17:08:04,814 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. [2024-10-14 17:08:04,827 INFO L140 encePairwiseOnDemand]: 326/329 looper letters, 34 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2024-10-14 17:08:04,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 390 transitions, 1270 flow [2024-10-14 17:08:04,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:08:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:08:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2024-10-14 17:08:04,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8611955420466059 [2024-10-14 17:08:04,829 INFO L175 Difference]: Start difference. First operand has 306 places, 382 transitions, 1180 flow. Second operand 3 states and 850 transitions. [2024-10-14 17:08:04,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 390 transitions, 1270 flow [2024-10-14 17:08:04,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 390 transitions, 1270 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:08:04,841 INFO L231 Difference]: Finished difference. Result has 309 places, 382 transitions, 1191 flow [2024-10-14 17:08:04,842 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} [2024-10-14 17:08:04,843 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 9 predicate places. [2024-10-14 17:08:04,843 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 382 transitions, 1191 flow [2024-10-14 17:08:04,844 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) [2024-10-14 17:08:04,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:08:04,844 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] [2024-10-14 17:08:04,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:08:04,845 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)] === [2024-10-14 17:08:04,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:08:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash -987438390, now seen corresponding path program 1 times [2024-10-14 17:08:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:08:04,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320860264] [2024-10-14 17:08:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:08:04,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:08:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:08:04,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:08:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:08:04,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:08:04,904 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:08:04,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-10-14 17:08:04,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-10-14 17:08:04,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-10-14 17:08:04,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-10-14 17:08:04,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-10-14 17:08:04,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-10-14 17:08:04,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-10-14 17:08:04,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-10-14 17:08:04,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-10-14 17:08:04,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-10-14 17:08:04,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-10-14 17:08:04,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-10-14 17:08:04,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-10-14 17:08:04,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-10-14 17:08:04,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-10-14 17:08:04,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-10-14 17:08:04,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-10-14 17:08:04,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-10-14 17:08:04,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-10-14 17:08:04,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-10-14 17:08:04,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-10-14 17:08:04,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:08:04,912 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 17:08:04,914 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:08:04,914 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 17:08:04,989 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-14 17:08:04,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 492 places, 547 transitions, 1138 flow [2024-10-14 17:08:05,392 INFO L124 PetriNetUnfolderBase]: 205/1752 cut-off events. [2024-10-14 17:08:05,393 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-14 17:08:05,421 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. [2024-10-14 17:08:05,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 492 places, 547 transitions, 1138 flow [2024-10-14 17:08:05,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 492 places, 547 transitions, 1138 flow [2024-10-14 17:08:05,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:08:05,441 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;@12a7df63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:08:05,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-10-14 17:08:05,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:08:05,445 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2024-10-14 17:08:05,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:08:05,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:08:05,445 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] [2024-10-14 17:08:05,445 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)] === [2024-10-14 17:08:05,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:08:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash 970183105, now seen corresponding path program 1 times [2024-10-14 17:08:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:08:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128427892] [2024-10-14 17:08:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:08:05,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:08:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:08:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:08:05,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:08:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128427892] [2024-10-14 17:08:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128427892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:08:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:08:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:08:05,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275322244] [2024-10-14 17:08:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:08:05,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:08:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:08:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:08:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:08:05,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 547 [2024-10-14 17:08:05,963 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) [2024-10-14 17:08:05,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:08:05,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 547 [2024-10-14 17:08:05,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand