./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.c --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_40-traces-ex-6_true.c -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 d551d88883f568d9dc756682eaf76a9dc8d8959d2b5a33f0b948ba0837daa52d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:10:15,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:10:15,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:10:15,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:10:15,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:10:15,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:10:15,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:10:15,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:10:15,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:10:15,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:10:15,137 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:10:15,138 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:15,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:15,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:15,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:10:15,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:10:15,139 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 -> d551d88883f568d9dc756682eaf76a9dc8d8959d2b5a33f0b948ba0837daa52d [2025-04-29 11:10:15,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:10:15,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:10:15,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:10:15,379 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:10:15,380 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:10:15,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.c [2025-04-29 11:10:16,683 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83220b2c/9050eda15c1d476ab06479395abf4ad3/FLAGf3d562b8f [2025-04-29 11:10:16,889 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:10:16,891 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.c [2025-04-29 11:10:16,894 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:16,909 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:16,930 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83220b2c/9050eda15c1d476ab06479395abf4ad3/FLAGf3d562b8f [2025-04-29 11:10:17,684 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83220b2c/9050eda15c1d476ab06479395abf4ad3 [2025-04-29 11:10:17,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:10:17,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:10:17,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:17,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:10:17,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:10:17,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f61fe37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17, skipping insertion in model container [2025-04-29 11:10:17,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:10:17,846 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:17,856 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:10:17,879 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:17,890 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:10:17,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17 WrapperNode [2025-04-29 11:10:17,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:17,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:17,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:10:17,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:10:17,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,917 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2025-04-29 11:10:17,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:17,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:10:17,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:10:17,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:10:17,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:10:17,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:10:17,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:10:17,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:10:17,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (1/1) ... [2025-04-29 11:10:17,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:17,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:17,964 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) [2025-04-29 11:10:17,969 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 [2025-04-29 11:10:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:10:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:10:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:10:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:10:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:10:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:10:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:10:17,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:10:17,989 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:10:18,052 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:10:18,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:10:18,161 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:10:18,161 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:10:18,186 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:10:18,187 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:10:18,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:18 BoogieIcfgContainer [2025-04-29 11:10:18,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:10:18,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:10:18,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:10:18,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:10:18,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:10:17" (1/3) ... [2025-04-29 11:10:18,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c46ccf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:18, skipping insertion in model container [2025-04-29 11:10:18,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:17" (2/3) ... [2025-04-29 11:10:18,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c46ccf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:18, skipping insertion in model container [2025-04-29 11:10:18,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:18" (3/3) ... [2025-04-29 11:10:18,194 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.c [2025-04-29 11:10:18,205 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:10:18,207 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_40-traces-ex-6_true.c that has 2 procedures, 64 locations, 63 edges, 1 initial locations, 0 loop locations, and 3 error locations. [2025-04-29 11:10:18,207 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:10:18,246 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:10:18,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 64 transitions, 132 flow [2025-04-29 11:10:18,312 INFO L116 PetriNetUnfolderBase]: 1/63 cut-off events. [2025-04-29 11:10:18,314 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:18,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-04-29 11:10:18,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 64 transitions, 132 flow [2025-04-29 11:10:18,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 63 transitions, 129 flow [2025-04-29 11:10:18,325 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:10:18,334 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;@6c393b3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:10:18,334 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-29 11:10:18,341 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:10:18,342 INFO L116 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-04-29 11:10:18,342 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:18,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:18,342 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] [2025-04-29 11:10:18,343 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:18,346 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:18,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1947832857, now seen corresponding path program 1 times [2025-04-29 11:10:18,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:18,351 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003400259] [2025-04-29 11:10:18,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:18,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-29 11:10:18,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-29 11:10:18,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:18,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:18,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:18,479 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003400259] [2025-04-29 11:10:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003400259] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089422255] [2025-04-29 11:10:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:18,485 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:18,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:18,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:18,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:18,523 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-04-29 11:10:18,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-04-29 11:10:18,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:18,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-04-29 11:10:18,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:18,602 INFO L116 PetriNetUnfolderBase]: 36/209 cut-off events. [2025-04-29 11:10:18,603 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:18,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 209 events. 36/209 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 877 event pairs, 28 based on Foata normal form. 10/206 useless extension candidates. Maximal degree in co-relation 281. Up to 73 conditions per place. [2025-04-29 11:10:18,607 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 17 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2025-04-29 11:10:18,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 179 flow [2025-04-29 11:10:18,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2025-04-29 11:10:18,616 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.859375 [2025-04-29 11:10:18,617 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 129 flow. Second operand 3 states and 165 transitions. [2025-04-29 11:10:18,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 179 flow [2025-04-29 11:10:18,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 67 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:10:18,623 INFO L231 Difference]: Finished difference. Result has 68 places, 64 transitions, 154 flow [2025-04-29 11:10:18,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2025-04-29 11:10:18,630 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2025-04-29 11:10:18,630 INFO L485 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 154 flow [2025-04-29 11:10:18,630 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2025-04-29 11:10:18,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:18,631 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] [2025-04-29 11:10:18,631 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:10:18,631 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:18,631 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:18,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1191420170, now seen corresponding path program 1 times [2025-04-29 11:10:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:18,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347207625] [2025-04-29 11:10:18,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:18,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-29 11:10:18,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-29 11:10:18,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:18,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:18,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:18,689 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347207625] [2025-04-29 11:10:18,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347207625] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:18,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:18,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:18,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977747753] [2025-04-29 11:10:18,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:18,690 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:18,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:18,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:18,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:18,704 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 64 [2025-04-29 11:10:18,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2025-04-29 11:10:18,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:18,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 64 [2025-04-29 11:10:18,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:18,781 INFO L116 PetriNetUnfolderBase]: 37/311 cut-off events. [2025-04-29 11:10:18,781 INFO L117 PetriNetUnfolderBase]: For 28/30 co-relation queries the response was YES. [2025-04-29 11:10:18,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 311 events. 37/311 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1600 event pairs, 20 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 435. Up to 64 conditions per place. [2025-04-29 11:10:18,783 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 15 selfloop transitions, 5 changer transitions 1/71 dead transitions. [2025-04-29 11:10:18,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 214 flow [2025-04-29 11:10:18,783 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2025-04-29 11:10:18,784 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.875 [2025-04-29 11:10:18,784 INFO L175 Difference]: Start difference. First operand has 68 places, 64 transitions, 154 flow. Second operand 3 states and 168 transitions. [2025-04-29 11:10:18,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 214 flow [2025-04-29 11:10:18,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 71 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:18,786 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 182 flow [2025-04-29 11:10:18,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2025-04-29 11:10:18,786 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 4 predicate places. [2025-04-29 11:10:18,786 INFO L485 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 182 flow [2025-04-29 11:10:18,787 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2025-04-29 11:10:18,787 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:18,787 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] [2025-04-29 11:10:18,787 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:10:18,787 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:18,787 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:18,787 INFO L85 PathProgramCache]: Analyzing trace with hash 571023669, now seen corresponding path program 1 times [2025-04-29 11:10:18,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:18,787 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506989544] [2025-04-29 11:10:18,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:18,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-29 11:10:18,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-29 11:10:18,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:18,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:18,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:18,845 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506989544] [2025-04-29 11:10:18,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506989544] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:18,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:18,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:18,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016585650] [2025-04-29 11:10:18,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:18,846 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:18,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:18,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:18,865 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-04-29 11:10:18,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2025-04-29 11:10:18,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:18,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-04-29 11:10:18,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:18,930 INFO L116 PetriNetUnfolderBase]: 40/308 cut-off events. [2025-04-29 11:10:18,930 INFO L117 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-04-29 11:10:18,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 308 events. 40/308 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1526 event pairs, 26 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 489. Up to 84 conditions per place. [2025-04-29 11:10:18,931 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 18 selfloop transitions, 4 changer transitions 3/73 dead transitions. [2025-04-29 11:10:18,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 248 flow [2025-04-29 11:10:18,932 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:18,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2025-04-29 11:10:18,934 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8489583333333334 [2025-04-29 11:10:18,934 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 182 flow. Second operand 3 states and 163 transitions. [2025-04-29 11:10:18,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 248 flow [2025-04-29 11:10:18,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:18,937 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 196 flow [2025-04-29 11:10:18,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2025-04-29 11:10:18,937 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2025-04-29 11:10:18,937 INFO L485 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 196 flow [2025-04-29 11:10:18,939 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2025-04-29 11:10:18,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:18,939 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] [2025-04-29 11:10:18,939 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:10:18,940 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:18,940 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2045424018, now seen corresponding path program 1 times [2025-04-29 11:10:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:18,941 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94044163] [2025-04-29 11:10:18,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:18,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-29 11:10:18,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-29 11:10:18,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:18,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,172 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94044163] [2025-04-29 11:10:19,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94044163] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-29 11:10:19,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936650638] [2025-04-29 11:10:19,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,173 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:10:19,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:10:19,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:10:19,190 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 64 [2025-04-29 11:10:19,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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) [2025-04-29 11:10:19,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 64 [2025-04-29 11:10:19,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,248 INFO L116 PetriNetUnfolderBase]: 8/192 cut-off events. [2025-04-29 11:10:19,248 INFO L117 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2025-04-29 11:10:19,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 192 events. 8/192 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 711 event pairs, 3 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 267. Up to 17 conditions per place. [2025-04-29 11:10:19,249 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 6 selfloop transitions, 5 changer transitions 2/65 dead transitions. [2025-04-29 11:10:19,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 65 transitions, 204 flow [2025-04-29 11:10:19,250 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2025-04-29 11:10:19,251 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.859375 [2025-04-29 11:10:19,251 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 196 flow. Second operand 5 states and 275 transitions. [2025-04-29 11:10:19,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 65 transitions, 204 flow [2025-04-29 11:10:19,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 184 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-04-29 11:10:19,253 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 162 flow [2025-04-29 11:10:19,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2025-04-29 11:10:19,256 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2025-04-29 11:10:19,256 INFO L485 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 162 flow [2025-04-29 11:10:19,256 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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) [2025-04-29 11:10:19,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:19,256 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] [2025-04-29 11:10:19,256 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:10:19,257 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:19,258 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1919067280, now seen corresponding path program 1 times [2025-04-29 11:10:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:19,258 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38306320] [2025-04-29 11:10:19,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:19,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:19,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-29 11:10:19,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-29 11:10:19,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:19,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,341 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38306320] [2025-04-29 11:10:19,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38306320] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:10:19,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128358135] [2025-04-29 11:10:19,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,342 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:19,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:19,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:19,347 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 64 [2025-04-29 11:10:19,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2025-04-29 11:10:19,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 64 [2025-04-29 11:10:19,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,376 INFO L116 PetriNetUnfolderBase]: 3/164 cut-off events. [2025-04-29 11:10:19,376 INFO L117 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2025-04-29 11:10:19,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 164 events. 3/164 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 572 event pairs, 1 based on Foata normal form. 4/159 useless extension candidates. Maximal degree in co-relation 207. Up to 15 conditions per place. [2025-04-29 11:10:19,376 INFO L140 encePairwiseOnDemand]: 59/64 looper letters, 5 selfloop transitions, 4 changer transitions 3/65 dead transitions. [2025-04-29 11:10:19,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 194 flow [2025-04-29 11:10:19,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2025-04-29 11:10:19,377 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9010416666666666 [2025-04-29 11:10:19,378 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 162 flow. Second operand 3 states and 173 transitions. [2025-04-29 11:10:19,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 194 flow [2025-04-29 11:10:19,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 187 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-29 11:10:19,380 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 170 flow [2025-04-29 11:10:19,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2025-04-29 11:10:19,380 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2025-04-29 11:10:19,380 INFO L485 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 170 flow [2025-04-29 11:10:19,380 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2025-04-29 11:10:19,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:19,381 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] [2025-04-29 11:10:19,381 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:10:19,381 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-04-29 11:10:19,381 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash 470987170, now seen corresponding path program 2 times [2025-04-29 11:10:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:19,381 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353928302] [2025-04-29 11:10:19,381 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:10:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:19,389 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 1 equivalence classes. [2025-04-29 11:10:19,392 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-29 11:10:19,392 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:10:19,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,490 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353928302] [2025-04-29 11:10:19,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353928302] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:10:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010033961] [2025-04-29 11:10:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,490 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:10:19,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:10:19,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:10:19,498 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 64 [2025-04-29 11:10:19,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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) [2025-04-29 11:10:19,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 64 [2025-04-29 11:10:19,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,526 INFO L116 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-04-29 11:10:19,526 INFO L117 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2025-04-29 11:10:19,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 79 events. 0/79 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2025-04-29 11:10:19,526 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2025-04-29 11:10:19,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 58 transitions, 170 flow [2025-04-29 11:10:19,527 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:19,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 271 transitions. [2025-04-29 11:10:19,527 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.846875 [2025-04-29 11:10:19,528 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 170 flow. Second operand 5 states and 271 transitions. [2025-04-29 11:10:19,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 58 transitions, 170 flow [2025-04-29 11:10:19,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 146 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-04-29 11:10:19,529 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2025-04-29 11:10:19,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2025-04-29 11:10:19,530 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2025-04-29 11:10:19,530 INFO L485 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2025-04-29 11:10:19,530 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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) [2025-04-29 11:10:19,533 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2025-04-29 11:10:19,534 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2025-04-29 11:10:19,534 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2025-04-29 11:10:19,534 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2025-04-29 11:10:19,534 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2025-04-29 11:10:19,534 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2025-04-29 11:10:19,534 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:10:19,535 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-04-29 11:10:19,539 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:10:19,539 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:10:19,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:10:19 BasicIcfg [2025-04-29 11:10:19,544 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:10:19,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:10:19,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:10:19,545 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:10:19,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:18" (3/4) ... [2025-04-29 11:10:19,546 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:10:19,548 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:10:19,550 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-29 11:10:19,551 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:19,551 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:19,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:10:19,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:10:19,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:10:19,601 INFO L158 Benchmark]: Toolchain (without parser) took 1914.05ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 67.3MB in the end (delta: 46.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,602 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.57ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 99.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.19ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,602 INFO L158 Benchmark]: Boogie Preprocessor took 18.13ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:19,603 INFO L158 Benchmark]: RCFGBuilder took 250.08ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 83.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,603 INFO L158 Benchmark]: TraceAbstraction took 1355.41ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 73.0MB in the end (delta: 9.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,603 INFO L158 Benchmark]: Witness Printer took 56.26ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 67.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:10:19,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.57ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 99.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.19ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.13ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 250.08ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 83.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1355.41ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 73.0MB in the end (delta: 9.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 56.26ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 67.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 22]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 24]: 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, 89 locations, 88 edges, 6 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: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 5 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=3, InterpolantAutomatonStates: 22, 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, 0.5s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:10:19,615 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