./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:52:21,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:52:21,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:52:21,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:52:21,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:52:21,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:52:21,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:52:21,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:52:21,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:52:21,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:52:21,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:52:21,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:52:21,931 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:52:21,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:52:21,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:52:21,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:52:21,933 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:52:21,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:52:21,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:52:21,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:52:21,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:52:21,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:52:21,937 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:52:21,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:52:21,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:52:21,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:52:21,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:52:21,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:52:21,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:52:21,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:52:21,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:52:21,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:21,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:52:21,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:52:21,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:52:21,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:52:21,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2024-11-22 17:52:22,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:52:22,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:52:22,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:52:22,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:52:22,183 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:52:22,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2024-11-22 17:52:23,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:52:23,829 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:52:23,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2024-11-22 17:52:23,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dadbf6d/c1a99b8388b649d1afd695f6fc8c0a68/FLAG0004058f5 [2024-11-22 17:52:24,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dadbf6d/c1a99b8388b649d1afd695f6fc8c0a68 [2024-11-22 17:52:24,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:52:24,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:52:24,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:24,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:52:24,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:52:24,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700ef27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24, skipping insertion in model container [2024-11-22 17:52:24,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:52:24,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:24,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:52:24,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:24,672 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:52:24,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24 WrapperNode [2024-11-22 17:52:24,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:24,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:24,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:52:24,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:52:24,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,729 INFO L138 Inliner]: procedures = 173, calls = 48, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 276 [2024-11-22 17:52:24,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:24,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:52:24,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:52:24,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:52:24,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:52:24,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:52:24,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:52:24,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:52:24,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (1/1) ... [2024-11-22 17:52:24,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:24,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:24,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:52:24,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:52:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:52:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-22 17:52:24,853 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-22 17:52:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:52:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:52:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:52:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:52:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-22 17:52:24,854 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-22 17:52:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:52:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:52:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:52:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:52:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:52:24,857 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:52:24,992 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:52:24,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:52:25,425 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:52:25,426 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:52:25,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:52:25,463 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-22 17:52:25,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:25 BoogieIcfgContainer [2024-11-22 17:52:25,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:52:25,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:52:25,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:52:25,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:52:25,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:52:24" (1/3) ... [2024-11-22 17:52:25,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b2981a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:25, skipping insertion in model container [2024-11-22 17:52:25,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:24" (2/3) ... [2024-11-22 17:52:25,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b2981a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:25, skipping insertion in model container [2024-11-22 17:52:25,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:25" (3/3) ... [2024-11-22 17:52:25,470 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2024-11-22 17:52:25,488 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:52:25,488 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-22 17:52:25,488 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:52:25,580 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-22 17:52:25,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 282 transitions, 584 flow [2024-11-22 17:52:25,817 INFO L124 PetriNetUnfolderBase]: 61/541 cut-off events. [2024-11-22 17:52:25,817 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-22 17:52:25,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 541 events. 61/541 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2683 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 296. Up to 8 conditions per place. [2024-11-22 17:52:25,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 282 transitions, 584 flow [2024-11-22 17:52:25,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 282 transitions, 584 flow [2024-11-22 17:52:25,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:25,869 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;@213960c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:25,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-22 17:52:25,876 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:25,876 INFO L124 PetriNetUnfolderBase]: 3/60 cut-off events. [2024-11-22 17:52:25,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:25,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:25,877 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] [2024-11-22 17:52:25,878 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)] === [2024-11-22 17:52:25,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1431440988, now seen corresponding path program 1 times [2024-11-22 17:52:25,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:25,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122310910] [2024-11-22 17:52:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:25,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:26,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:26,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122310910] [2024-11-22 17:52:26,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122310910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:26,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:26,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:26,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815227897] [2024-11-22 17:52:26,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:26,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:26,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:26,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:26,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 282 [2024-11-22 17:52:26,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 282 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:26,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:26,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 282 [2024-11-22 17:52:26,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:28,579 INFO L124 PetriNetUnfolderBase]: 2757/13856 cut-off events. [2024-11-22 17:52:28,580 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-22 17:52:28,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18134 conditions, 13856 events. 2757/13856 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 173679 event pairs, 1758 based on Foata normal form. 3220/15831 useless extension candidates. Maximal degree in co-relation 16309. Up to 4109 conditions per place. [2024-11-22 17:52:28,711 INFO L140 encePairwiseOnDemand]: 248/282 looper letters, 74 selfloop transitions, 5 changer transitions 0/281 dead transitions. [2024-11-22 17:52:28,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 281 transitions, 740 flow [2024-11-22 17:52:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2024-11-22 17:52:28,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8156028368794326 [2024-11-22 17:52:28,732 INFO L175 Difference]: Start difference. First operand has 253 places, 282 transitions, 584 flow. Second operand 6 states and 1380 transitions. [2024-11-22 17:52:28,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 281 transitions, 740 flow [2024-11-22 17:52:28,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 281 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:28,750 INFO L231 Difference]: Finished difference. Result has 253 places, 249 transitions, 528 flow [2024-11-22 17:52:28,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=253, PETRI_TRANSITIONS=249} [2024-11-22 17:52:28,757 INFO L277 CegarLoopForPetriNet]: 253 programPoint places, 0 predicate places. [2024-11-22 17:52:28,758 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 249 transitions, 528 flow [2024-11-22 17:52:28,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:28,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:28,759 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] [2024-11-22 17:52:28,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:52:28,761 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)] === [2024-11-22 17:52:28,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2125433958, now seen corresponding path program 1 times [2024-11-22 17:52:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:28,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749041697] [2024-11-22 17:52:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:28,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:28,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749041697] [2024-11-22 17:52:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749041697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:28,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:28,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695299784] [2024-11-22 17:52:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:28,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:28,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 282 [2024-11-22 17:52:28,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 249 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:28,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:28,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 282 [2024-11-22 17:52:28,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:29,223 INFO L124 PetriNetUnfolderBase]: 333/2906 cut-off events. [2024-11-22 17:52:29,223 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-22 17:52:29,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3535 conditions, 2906 events. 333/2906 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 26904 event pairs, 280 based on Foata normal form. 1/2580 useless extension candidates. Maximal degree in co-relation 3366. Up to 538 conditions per place. [2024-11-22 17:52:29,241 INFO L140 encePairwiseOnDemand]: 279/282 looper letters, 34 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2024-11-22 17:52:29,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 257 transitions, 616 flow [2024-11-22 17:52:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 709 transitions. [2024-11-22 17:52:29,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8380614657210402 [2024-11-22 17:52:29,243 INFO L175 Difference]: Start difference. First operand has 253 places, 249 transitions, 528 flow. Second operand 3 states and 709 transitions. [2024-11-22 17:52:29,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 257 transitions, 616 flow [2024-11-22 17:52:29,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 257 transitions, 606 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:52:29,252 INFO L231 Difference]: Finished difference. Result has 251 places, 249 transitions, 526 flow [2024-11-22 17:52:29,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=251, PETRI_TRANSITIONS=249} [2024-11-22 17:52:29,253 INFO L277 CegarLoopForPetriNet]: 253 programPoint places, -2 predicate places. [2024-11-22 17:52:29,253 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 249 transitions, 526 flow [2024-11-22 17:52:29,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:29,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:29,254 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] [2024-11-22 17:52:29,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:52:29,255 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)] === [2024-11-22 17:52:29,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash -668627574, now seen corresponding path program 1 times [2024-11-22 17:52:29,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:29,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526975379] [2024-11-22 17:52:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:29,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:29,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:52:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:29,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:52:29,324 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:52:29,326 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-22 17:52:29,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-22 17:52:29,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-22 17:52:29,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-22 17:52:29,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-22 17:52:29,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-22 17:52:29,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-22 17:52:29,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-22 17:52:29,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-22 17:52:29,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-22 17:52:29,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-22 17:52:29,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-22 17:52:29,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-22 17:52:29,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-22 17:52:29,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-22 17:52:29,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-22 17:52:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:52:29,335 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-22 17:52:29,337 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:52:29,338 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:52:29,409 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-22 17:52:29,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 456 transitions, 956 flow [2024-11-22 17:52:29,651 INFO L124 PetriNetUnfolderBase]: 205/1573 cut-off events. [2024-11-22 17:52:29,651 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-22 17:52:29,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 1573 events. 205/1573 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10247 event pairs, 2 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 948. Up to 32 conditions per place. [2024-11-22 17:52:29,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 456 transitions, 956 flow [2024-11-22 17:52:29,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 401 places, 456 transitions, 956 flow [2024-11-22 17:52:29,691 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:29,692 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;@213960c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:29,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-22 17:52:29,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:29,695 INFO L124 PetriNetUnfolderBase]: 3/60 cut-off events. [2024-11-22 17:52:29,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:29,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:29,698 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] [2024-11-22 17:52:29,698 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)] === [2024-11-22 17:52:29,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1799443996, now seen corresponding path program 1 times [2024-11-22 17:52:29,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:29,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138024277] [2024-11-22 17:52:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:29,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:29,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138024277] [2024-11-22 17:52:29,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138024277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:29,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:29,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:29,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723401959] [2024-11-22 17:52:29,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:29,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:29,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:29,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:30,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 456 [2024-11-22 17:52:30,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 456 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:30,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:30,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 456 [2024-11-22 17:52:30,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand