./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/bigshot_p.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/pthread/bigshot_p.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 2234eebb2a3ce1f8693a4ef64f0a3bd67eda71a84f3c7eb087217798ea03f973 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:12:47,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:12:47,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:12:47,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:12:47,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:12:47,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:12:47,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:12:47,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:12:47,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:12:47,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:12:47,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:12:47,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:12:47,097 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:12:47,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:12:47,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:12:47,099 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:12:47,100 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:47,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:47,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:47,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:12:47,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:12:47,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:12:47,102 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 -> 2234eebb2a3ce1f8693a4ef64f0a3bd67eda71a84f3c7eb087217798ea03f973 [2025-04-29 11:12:47,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:12:47,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:12:47,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:12:47,310 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:12:47,311 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:12:47,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_p.c [2025-04-29 11:12:48,619 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127fccb4/7b0fabaa552d4419bc018023a403f87e/FLAG6c0a95f8b [2025-04-29 11:12:48,837 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:12:48,837 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_p.c [2025-04-29 11:12:48,841 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:48,842 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:48,842 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:48,842 WARN L117 ultiparseSymbolTable]: System include string.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:48,848 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127fccb4/7b0fabaa552d4419bc018023a403f87e/FLAG6c0a95f8b [2025-04-29 11:12:49,621 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127fccb4/7b0fabaa552d4419bc018023a403f87e [2025-04-29 11:12:49,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:12:49,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:12:49,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:49,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:12:49,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:12:49,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5cc1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49, skipping insertion in model container [2025-04-29 11:12:49,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:12:49,787 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:49,797 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:12:49,820 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:49,829 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:12:49,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49 WrapperNode [2025-04-29 11:12:49,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:49,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:49,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:12:49,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:12:49,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,854 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 80 [2025-04-29 11:12:49,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:49,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:12:49,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:12:49,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:12:49,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:12:49,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:12:49,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:12:49,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:12:49,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (1/1) ... [2025-04-29 11:12:49,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:12:49,902 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 11:12:49,908 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 11:12:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:12:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-29 11:12:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-29 11:12:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:12:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:12:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:12:49,925 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 11:12:49,985 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:12:49,986 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:12:50,099 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:12:50,100 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:12:50,109 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:12:50,110 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 11:12:50,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:50 BoogieIcfgContainer [2025-04-29 11:12:50,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:12:50,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:12:50,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:12:50,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:12:50,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:12:49" (1/3) ... [2025-04-29 11:12:50,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc13394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:50, skipping insertion in model container [2025-04-29 11:12:50,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:49" (2/3) ... [2025-04-29 11:12:50,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc13394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:50, skipping insertion in model container [2025-04-29 11:12:50,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:50" (3/3) ... [2025-04-29 11:12:50,116 INFO L128 eAbstractionObserver]: Analyzing ICFG bigshot_p.c [2025-04-29 11:12:50,125 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:12:50,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bigshot_p.c that has 3 procedures, 96 locations, 98 edges, 1 initial locations, 1 loop locations, and 6 error locations. [2025-04-29 11:12:50,127 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:12:50,198 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-29 11:12:50,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 214 flow [2025-04-29 11:12:50,258 INFO L116 PetriNetUnfolderBase]: 5/98 cut-off events. [2025-04-29 11:12:50,260 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-29 11:12:50,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 98 events. 5/98 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2025-04-29 11:12:50,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 100 transitions, 214 flow [2025-04-29 11:12:50,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 80 transitions, 172 flow [2025-04-29 11:12:50,272 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:12:50,279 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;@6b00a5b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:12:50,280 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-04-29 11:12:50,288 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:12:50,288 INFO L116 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-04-29 11:12:50,288 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:12:50,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:50,289 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] [2025-04-29 11:12:50,289 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-04-29 11:12:50,293 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash 235357927, now seen corresponding path program 1 times [2025-04-29 11:12:50,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:50,298 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750187151] [2025-04-29 11:12:50,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:50,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:50,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 11:12:50,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-29 11:12:50,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:50,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:50,451 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 11:12:50,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:50,452 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750187151] [2025-04-29 11:12:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750187151] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:50,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215684446] [2025-04-29 11:12:50,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:50,458 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:50,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:50,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:50,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:50,501 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 100 [2025-04-29 11:12:50,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 11:12:50,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:50,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 100 [2025-04-29 11:12:50,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:50,549 INFO L116 PetriNetUnfolderBase]: 25/190 cut-off events. [2025-04-29 11:12:50,549 INFO L117 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-04-29 11:12:50,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 190 events. 25/190 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 697 event pairs, 8 based on Foata normal form. 6/174 useless extension candidates. Maximal degree in co-relation 203. Up to 38 conditions per place. [2025-04-29 11:12:50,551 INFO L140 encePairwiseOnDemand]: 93/100 looper letters, 13 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2025-04-29 11:12:50,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 84 transitions, 219 flow [2025-04-29 11:12:50,552 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:50,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2025-04-29 11:12:50,560 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.91 [2025-04-29 11:12:50,561 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 172 flow. Second operand 3 states and 273 transitions. [2025-04-29 11:12:50,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 84 transitions, 219 flow [2025-04-29 11:12:50,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 209 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-29 11:12:50,570 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 200 flow [2025-04-29 11:12:50,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2025-04-29 11:12:50,575 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2025-04-29 11:12:50,575 INFO L485 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 200 flow [2025-04-29 11:12:50,576 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 11:12:50,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:50,576 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] [2025-04-29 11:12:50,576 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:12:50,577 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-04-29 11:12:50,577 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:50,577 INFO L85 PathProgramCache]: Analyzing trace with hash 638540219, now seen corresponding path program 1 times [2025-04-29 11:12:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:50,578 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725839167] [2025-04-29 11:12:50,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:50,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 11:12:50,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-29 11:12:50,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:50,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:50,630 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 11:12:50,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:50,630 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725839167] [2025-04-29 11:12:50,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725839167] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:50,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:50,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:50,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410609253] [2025-04-29 11:12:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:50,631 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:50,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:50,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:50,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:50,653 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2025-04-29 11:12:50,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 11:12:50,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:50,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2025-04-29 11:12:50,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:50,707 INFO L116 PetriNetUnfolderBase]: 37/245 cut-off events. [2025-04-29 11:12:50,707 INFO L117 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2025-04-29 11:12:50,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 245 events. 37/245 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1046 event pairs, 4 based on Foata normal form. 2/225 useless extension candidates. Maximal degree in co-relation 134. Up to 45 conditions per place. [2025-04-29 11:12:50,710 INFO L140 encePairwiseOnDemand]: 90/100 looper letters, 17 selfloop transitions, 8 changer transitions 0/89 dead transitions. [2025-04-29 11:12:50,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 89 transitions, 274 flow [2025-04-29 11:12:50,712 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2025-04-29 11:12:50,715 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2025-04-29 11:12:50,715 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 200 flow. Second operand 3 states and 266 transitions. [2025-04-29 11:12:50,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 89 transitions, 274 flow [2025-04-29 11:12:50,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 89 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:50,719 INFO L231 Difference]: Finished difference. Result has 84 places, 87 transitions, 252 flow [2025-04-29 11:12:50,719 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=84, PETRI_TRANSITIONS=87} [2025-04-29 11:12:50,719 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2025-04-29 11:12:50,719 INFO L485 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 252 flow [2025-04-29 11:12:50,720 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 11:12:50,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:50,720 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] [2025-04-29 11:12:50,720 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:12:50,720 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2025-04-29 11:12:50,722 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:50,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1617805871, now seen corresponding path program 1 times [2025-04-29 11:12:50,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:50,722 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745326544] [2025-04-29 11:12:50,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:50,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:50,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-29 11:12:50,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-29 11:12:50,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:50,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:12:50,749 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:12:50,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-29 11:12:50,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-29 11:12:50,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:50,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:12:50,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:12:50,773 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:12:50,774 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2025-04-29 11:12:50,775 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-04-29 11:12:50,775 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-04-29 11:12:50,775 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-04-29 11:12:50,775 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-04-29 11:12:50,775 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2025-04-29 11:12:50,776 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-04-29 11:12:50,777 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2025-04-29 11:12:50,777 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2025-04-29 11:12:50,777 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-04-29 11:12:50,777 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-04-29 11:12:50,777 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:12:50,777 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:12:50,823 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:12:50,823 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:12:50,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:12:50 BasicIcfg [2025-04-29 11:12:50,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:12:50,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:12:50,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:12:50,827 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:12:50,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:50" (3/4) ... [2025-04-29 11:12:50,829 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:12:50,866 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-29 11:12:50,894 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:12:50,894 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:12:50,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:12:50,895 INFO L158 Benchmark]: Toolchain (without parser) took 1271.23ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 108.6MB in the end (delta: 13.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,895 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:50,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.18ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 108.6MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.78ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 106.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,896 INFO L158 Benchmark]: Boogie Preprocessor took 20.03ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 105.9MB in the end (delta: 915.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:50,896 INFO L158 Benchmark]: RCFGBuilder took 235.01ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 91.9MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,896 INFO L158 Benchmark]: TraceAbstraction took 714.83ms. Allocated memory is still 167.8MB. Free memory was 91.0MB in the beginning and 116.3MB in the end (delta: -25.4MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,896 INFO L158 Benchmark]: Witness Printer took 67.08ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 108.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:50,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.18ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 108.6MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.78ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 106.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.03ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 105.9MB in the end (delta: 915.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 235.01ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 91.9MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 714.83ms. Allocated memory is still 167.8MB. Free memory was 91.0MB in the beginning and 116.3MB in the end (delta: -25.4MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 67.08ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 108.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 23]: Data race detected Data race detected The following path leads to a data race: [L19] 0 char *v; VAL [v={0:0}] [L36] 0 pthread_t t1, t2; VAL [v={0:0}] [L38] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [t1=-1, v={0:0}] [L23] EXPR, FCALL 1 calloc(8, sizeof(char)) [L23] 1 v = calloc(8, sizeof(char)) VAL [\at(arg, Pre)={0:0}, arg={0:0}, v={-2:0}] [L39] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [t1=-1, t2=0, v={-2:0}] [L29] 2 \read(*v) VAL [\at(arg, Pre)={0:0}, arg={0:0}, v={-2:0}] [L23] 1 v = calloc(8, sizeof(char)) VAL [\at(arg, Pre)={0:0}, arg={0:0}, v={-2:0}] Now there is a data race on ~v~0 between C: if (v) strcpy(v, "Bigshot"); [29] and C: v = calloc(8, sizeof(char)) [23] - UnprovableResult [Line: 29]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 29]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 136 locations, 143 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: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 7 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2025-04-29 11:12:50,908 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)