./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.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 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:28:57,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:28:57,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:28:57,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:28:57,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:28:57,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:28:57,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:28:57,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:28:57,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:28:57,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:28:57,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:28:57,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:28:57,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:28:57,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:28:57,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:28:57,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:28:57,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:28:57,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:28:57,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:28:57,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:28:57,750 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d [2025-04-30 10:28:57,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:28:57,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:28:57,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:28:57,980 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:28:57,981 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:28:57,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2025-04-30 10:28:59,288 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aa36c90/47bee1b5569243b3b0653474198e1fa8/FLAGbba1abf3f [2025-04-30 10:28:59,568 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:28:59,568 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2025-04-30 10:28:59,577 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aa36c90/47bee1b5569243b3b0653474198e1fa8/FLAGbba1abf3f [2025-04-30 10:29:00,338 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aa36c90/47bee1b5569243b3b0653474198e1fa8 [2025-04-30 10:29:00,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:29:00,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:29:00,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:00,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:29:00,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:29:00,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e9d3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00, skipping insertion in model container [2025-04-30 10:29:00,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:29:00,667 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:00,684 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:29:00,743 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:00,777 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:29:00,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00 WrapperNode [2025-04-30 10:29:00,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:00,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:00,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:29:00,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:29:00,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,815 INFO L138 Inliner]: procedures = 162, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2025-04-30 10:29:00,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:00,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:29:00,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:29:00,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:29:00,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,832 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:29:00,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:29:00,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:29:00,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:29:00,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (1/1) ... [2025-04-30 10:29:00,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:00,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:00,872 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) [2025-04-30 10:29:00,876 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 [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2025-04-30 10:29:00,891 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:29:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:29:00,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:29:00,892 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:29:00,998 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:29:00,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:29:01,121 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:29:01,121 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:29:01,137 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:29:01,137 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:29:01,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:01 BoogieIcfgContainer [2025-04-30 10:29:01,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:29:01,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:29:01,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:29:01,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:29:01,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:29:00" (1/3) ... [2025-04-30 10:29:01,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ecff5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:01, skipping insertion in model container [2025-04-30 10:29:01,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:00" (2/3) ... [2025-04-30 10:29:01,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ecff5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:01, skipping insertion in model container [2025-04-30 10:29:01,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:01" (3/3) ... [2025-04-30 10:29:01,143 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2025-04-30 10:29:01,151 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:29:01,153 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_52-refine-protected-loop2-small_true.i that has 2 procedures, 85 locations, 87 edges, 1 initial locations, 1 loop locations, and 5 error locations. [2025-04-30 10:29:01,153 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:29:01,206 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:29:01,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 180 flow [2025-04-30 10:29:01,271 INFO L116 PetriNetUnfolderBase]: 4/87 cut-off events. [2025-04-30 10:29:01,273 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:01,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2025-04-30 10:29:01,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 180 flow [2025-04-30 10:29:01,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 84 transitions, 171 flow [2025-04-30 10:29:01,284 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:29:01,293 INFO L340 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;@2446611e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:29:01,293 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-04-30 10:29:01,302 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:29:01,302 INFO L116 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-04-30 10:29:01,302 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:01,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:01,303 INFO L206 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] [2025-04-30 10:29:01,303 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:29:01,307 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash -771391188, now seen corresponding path program 1 times [2025-04-30 10:29:01,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:01,313 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883572481] [2025-04-30 10:29:01,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:01,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:01,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-30 10:29:01,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-30 10:29:01,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:01,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:01,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:01,507 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883572481] [2025-04-30 10:29:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883572481] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:01,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630247467] [2025-04-30 10:29:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:01,514 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:01,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:01,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:01,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:01,575 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 88 [2025-04-30 10:29:01,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2025-04-30 10:29:01,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:01,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 88 [2025-04-30 10:29:01,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:01,630 INFO L116 PetriNetUnfolderBase]: 2/79 cut-off events. [2025-04-30 10:29:01,631 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:01,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 2/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 2/75 useless extension candidates. Maximal degree in co-relation 61. Up to 12 conditions per place. [2025-04-30 10:29:01,632 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 11 selfloop transitions, 2 changer transitions 3/79 dead transitions. [2025-04-30 10:29:01,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 187 flow [2025-04-30 10:29:01,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-04-30 10:29:01,641 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8560606060606061 [2025-04-30 10:29:01,642 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 171 flow. Second operand 3 states and 226 transitions. [2025-04-30 10:29:01,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 187 flow [2025-04-30 10:29:01,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:29:01,649 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 158 flow [2025-04-30 10:29:01,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2025-04-30 10:29:01,656 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -2 predicate places. [2025-04-30 10:29:01,656 INFO L485 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 158 flow [2025-04-30 10:29:01,657 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2025-04-30 10:29:01,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:01,657 INFO L206 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] [2025-04-30 10:29:01,658 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:29:01,658 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:29:01,658 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1855367472, now seen corresponding path program 1 times [2025-04-30 10:29:01,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:01,659 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350527387] [2025-04-30 10:29:01,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:01,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:01,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-30 10:29:01,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-30 10:29:01,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:01,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:01,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:01,740 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350527387] [2025-04-30 10:29:01,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350527387] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:01,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:01,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:01,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432374671] [2025-04-30 10:29:01,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:01,742 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:01,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:01,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:01,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:01,768 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 88 [2025-04-30 10:29:01,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2025-04-30 10:29:01,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:01,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 88 [2025-04-30 10:29:01,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:01,811 INFO L116 PetriNetUnfolderBase]: 2/84 cut-off events. [2025-04-30 10:29:01,811 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-30 10:29:01,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 84 events. 2/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2025-04-30 10:29:01,812 INFO L140 encePairwiseOnDemand]: 82/88 looper letters, 15 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2025-04-30 10:29:01,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 200 flow [2025-04-30 10:29:01,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2025-04-30 10:29:01,813 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8522727272727273 [2025-04-30 10:29:01,814 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 158 flow. Second operand 3 states and 225 transitions. [2025-04-30 10:29:01,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 200 flow [2025-04-30 10:29:01,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:01,816 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 161 flow [2025-04-30 10:29:01,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2025-04-30 10:29:01,816 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2025-04-30 10:29:01,816 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 161 flow [2025-04-30 10:29:01,818 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2025-04-30 10:29:01,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:01,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:01,818 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:29:01,819 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-04-30 10:29:01,820 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1691924130, now seen corresponding path program 1 times [2025-04-30 10:29:01,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:01,821 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577097588] [2025-04-30 10:29:01,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:01,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:01,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-04-30 10:29:01,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-04-30 10:29:01,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:01,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:01,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:01,901 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577097588] [2025-04-30 10:29:01,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577097588] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:01,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:01,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:01,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683599113] [2025-04-30 10:29:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:01,902 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:01,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:01,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:01,937 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 88 [2025-04-30 10:29:01,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2025-04-30 10:29:01,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:01,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 88 [2025-04-30 10:29:01,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:01,958 INFO L116 PetriNetUnfolderBase]: 2/83 cut-off events. [2025-04-30 10:29:01,958 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-30 10:29:01,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 83 events. 2/83 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 37 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 76. Up to 17 conditions per place. [2025-04-30 10:29:01,958 INFO L140 encePairwiseOnDemand]: 85/88 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2025-04-30 10:29:01,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 73 transitions, 187 flow [2025-04-30 10:29:01,960 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-04-30 10:29:01,961 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485 [2025-04-30 10:29:01,963 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 161 flow. Second operand 3 states and 224 transitions. [2025-04-30 10:29:01,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 73 transitions, 187 flow [2025-04-30 10:29:01,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:29:01,965 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2025-04-30 10:29:01,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2025-04-30 10:29:01,965 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2025-04-30 10:29:01,965 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2025-04-30 10:29:01,965 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2025-04-30 10:29:01,967 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-04-30 10:29:01,968 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2025-04-30 10:29:01,969 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2025-04-30 10:29:01,969 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-04-30 10:29:01,969 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-04-30 10:29:01,969 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:29:01,969 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:29:01,973 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:29:01,973 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:29:01,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:29:01 BasicIcfg [2025-04-30 10:29:01,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:29:01,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:29:01,980 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:29:01,980 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:29:01,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:01" (3/4) ... [2025-04-30 10:29:01,981 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:29:01,983 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2025-04-30 10:29:01,985 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-04-30 10:29:01,985 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-30 10:29:01,985 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:29:01,985 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:29:02,037 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:29:02,038 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:29:02,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:29:02,039 INFO L158 Benchmark]: Toolchain (without parser) took 1697.72ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 72.6MB in the end (delta: 38.8MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2025-04-30 10:29:02,039 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:02,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.44ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 88.2MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:29:02,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.44ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:02,041 INFO L158 Benchmark]: Boogie Preprocessor took 27.64ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 85.5MB in the end (delta: 907.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:02,041 INFO L158 Benchmark]: RCFGBuilder took 292.85ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 71.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:29:02,042 INFO L158 Benchmark]: TraceAbstraction took 840.10ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 78.0MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:02,042 INFO L158 Benchmark]: Witness Printer took 58.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 72.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:29:02,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.44ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 88.2MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.44ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.64ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 85.5MB in the end (delta: 907.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.85ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 71.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 840.10ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 78.0MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 72.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 139 edges, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 21 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:29:02,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE