./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.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/04-mutex_14-funarg_rc.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 c5b7dc0e540e307a6b72f1c856de4e5efd074e26d20a9cb66b738ee1a80b8921 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:07:56,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:07:56,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:07:56,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:07:56,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:07:56,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:07:56,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:07:56,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:07:56,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:07:56,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:07:56,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:07:56,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:07:56,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:07:56,311 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:56,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:56,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:56,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:07:56,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:07:56,312 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 -> c5b7dc0e540e307a6b72f1c856de4e5efd074e26d20a9cb66b738ee1a80b8921 [2025-04-29 11:07:56,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:07:56,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:07:56,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:07:56,558 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:07:56,559 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:07:56,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.c [2025-04-29 11:07:57,893 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381e0ae5b/dbfdf4db6bad447c93de3c6255ec4d8a/FLAG5c6489f47 [2025-04-29 11:07:58,111 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:07:58,112 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.c [2025-04-29 11:07:58,113 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:58,114 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:58,120 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381e0ae5b/dbfdf4db6bad447c93de3c6255ec4d8a/FLAG5c6489f47 [2025-04-29 11:07:58,944 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381e0ae5b/dbfdf4db6bad447c93de3c6255ec4d8a [2025-04-29 11:07:58,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:07:58,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:07:58,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:58,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:07:58,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:07:58,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:58" (1/1) ... [2025-04-29 11:07:58,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523154a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:58, skipping insertion in model container [2025-04-29 11:07:58,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:58" (1/1) ... [2025-04-29 11:07:58,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:07:59,107 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:59,116 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:07:59,142 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:59,157 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:07:59,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59 WrapperNode [2025-04-29 11:07:59,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:59,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:59,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:07:59,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:07:59,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,182 INFO L138 Inliner]: procedures = 12, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2025-04-29 11:07:59,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:59,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:07:59,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:07:59,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:07:59,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,194 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:07:59,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:07:59,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:07:59,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:07:59,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (1/1) ... [2025-04-29 11:07:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:59,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:07:59,233 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 11:07:59,236 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 11:07:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:07:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:07:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:07:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:07:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:07:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:07:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:07:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:07:59,255 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 11:07:59,317 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:07:59,319 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:07:59,463 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:07:59,464 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:07:59,495 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:07:59,495 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:07:59,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:59 BoogieIcfgContainer [2025-04-29 11:07:59,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:07:59,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:07:59,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:07:59,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:07:59,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:07:58" (1/3) ... [2025-04-29 11:07:59,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:59, skipping insertion in model container [2025-04-29 11:07:59,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:59" (2/3) ... [2025-04-29 11:07:59,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:59, skipping insertion in model container [2025-04-29 11:07:59,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:59" (3/3) ... [2025-04-29 11:07:59,506 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.c [2025-04-29 11:07:59,516 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:07:59,518 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_14-funarg_rc.c that has 2 procedures, 70 locations, 68 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-29 11:07:59,518 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:07:59,570 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:07:59,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 145 flow [2025-04-29 11:07:59,629 INFO L116 PetriNetUnfolderBase]: 0/68 cut-off events. [2025-04-29 11:07:59,633 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:07:59,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 0/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-29 11:07:59,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 145 flow [2025-04-29 11:07:59,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2025-04-29 11:07:59,649 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:07:59,659 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;@798744f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:07:59,659 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:07:59,666 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:07:59,666 INFO L116 PetriNetUnfolderBase]: 0/27 cut-off events. [2025-04-29 11:07:59,667 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:07:59,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:59,667 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] [2025-04-29 11:07:59,667 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:59,671 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:59,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1196989815, now seen corresponding path program 1 times [2025-04-29 11:07:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:59,678 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104747245] [2025-04-29 11:07:59,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:59,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:59,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-29 11:07:59,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-29 11:07:59,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:59,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:59,824 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 11:07:59,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:59,824 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104747245] [2025-04-29 11:07:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104747245] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:59,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408774702] [2025-04-29 11:07:59,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:59,834 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:59,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:59,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:59,878 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 69 [2025-04-29 11:07:59,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 11:07:59,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:59,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 69 [2025-04-29 11:07:59,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:59,965 INFO L116 PetriNetUnfolderBase]: 47/286 cut-off events. [2025-04-29 11:07:59,965 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:07:59,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 286 events. 47/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1285 event pairs, 12 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 385. Up to 82 conditions per place. [2025-04-29 11:07:59,968 INFO L140 encePairwiseOnDemand]: 60/69 looper letters, 20 selfloop transitions, 6 changer transitions 1/73 dead transitions. [2025-04-29 11:07:59,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 73 transitions, 203 flow [2025-04-29 11:07:59,969 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2025-04-29 11:07:59,982 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2025-04-29 11:07:59,983 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 129 flow. Second operand 3 states and 183 transitions. [2025-04-29 11:07:59,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 73 transitions, 203 flow [2025-04-29 11:07:59,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 73 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:07:59,993 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 174 flow [2025-04-29 11:07:59,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2025-04-29 11:07:59,999 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2025-04-29 11:07:59,999 INFO L485 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 174 flow [2025-04-29 11:08:00,000 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 11:08:00,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:00,000 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] [2025-04-29 11:08:00,001 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:00,001 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:00,002 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2035513414, now seen corresponding path program 1 times [2025-04-29 11:08:00,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:00,002 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347980286] [2025-04-29 11:08:00,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:00,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:00,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:08:00,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:08:00,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:00,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:00,062 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 11:08:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:00,062 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347980286] [2025-04-29 11:08:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347980286] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:00,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680027972] [2025-04-29 11:08:00,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:00,063 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:00,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:00,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:00,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:00,083 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 69 [2025-04-29 11:08:00,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 11:08:00,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:00,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 69 [2025-04-29 11:08:00,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:00,167 INFO L116 PetriNetUnfolderBase]: 73/360 cut-off events. [2025-04-29 11:08:00,167 INFO L117 PetriNetUnfolderBase]: For 71/73 co-relation queries the response was YES. [2025-04-29 11:08:00,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 360 events. 73/360 cut-off events. For 71/73 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1772 event pairs, 30 based on Foata normal form. 2/340 useless extension candidates. Maximal degree in co-relation 590. Up to 129 conditions per place. [2025-04-29 11:08:00,169 INFO L140 encePairwiseOnDemand]: 63/69 looper letters, 18 selfloop transitions, 5 changer transitions 5/76 dead transitions. [2025-04-29 11:08:00,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 76 transitions, 256 flow [2025-04-29 11:08:00,170 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2025-04-29 11:08:00,171 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2025-04-29 11:08:00,171 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 174 flow. Second operand 3 states and 183 transitions. [2025-04-29 11:08:00,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 76 transitions, 256 flow [2025-04-29 11:08:00,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 76 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:00,175 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 194 flow [2025-04-29 11:08:00,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2025-04-29 11:08:00,175 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2025-04-29 11:08:00,176 INFO L485 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 194 flow [2025-04-29 11:08:00,176 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 11:08:00,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:00,176 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 11:08:00,176 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:00,177 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:00,177 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:00,177 INFO L85 PathProgramCache]: Analyzing trace with hash -881557668, now seen corresponding path program 1 times [2025-04-29 11:08:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:00,177 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767950134] [2025-04-29 11:08:00,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:00,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:00,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-29 11:08:00,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-29 11:08:00,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:00,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:00,196 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:08:00,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-29 11:08:00,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-29 11:08:00,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:00,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:00,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:08:00,223 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:08:00,224 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-29 11:08:00,225 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-29 11:08:00,226 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:00,226 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:08:00,262 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:00,262 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:00,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:00 BasicIcfg [2025-04-29 11:08:00,265 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:00,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:00,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:00,266 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:00,267 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:59" (3/4) ... [2025-04-29 11:08:00,268 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:08:00,310 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-29 11:08:00,336 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:00,337 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:00,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:00,337 INFO L158 Benchmark]: Toolchain (without parser) took 1390.22ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 85.4MB in the end (delta: 26.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2025-04-29 11:08:00,338 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:00,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.72ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 98.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:00,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.06ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:00,339 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 96.3MB in the end (delta: 440.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:00,340 INFO L158 Benchmark]: RCFGBuilder took 289.64ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 82.7MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:00,340 INFO L158 Benchmark]: TraceAbstraction took 766.72ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 92.1MB in the end (delta: -10.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:00,340 INFO L158 Benchmark]: Witness Printer took 71.17ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 85.4MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:00,341 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.72ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 98.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.06ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 96.3MB in the end (delta: 440.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.64ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 82.7MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 766.72ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 92.1MB in the end (delta: -10.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.17ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 85.4MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 32]: Data race detected Data race detected The following path leads to a data race: [L11] 0 int myglobal; VAL [myglobal=0] [L12] 0 pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; VAL [mutex1={1:0}, myglobal=0] [L13] 0 pthread_mutex_t mutex2 = PTHREAD_MUTEX_INITIALIZER; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L14] 0 pthread_mutex_t mutex3 = PTHREAD_MUTEX_INITIALIZER; VAL [mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L28] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L29] FCALL, FORK 0 pthread_create(&id, NULL, t_fun, NULL) VAL [\at(arg, Pre)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L18] EXPR 1 myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L18] 1 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L18] 1 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L32] 0 printf("myglobal equals %d\n",myglobal) VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [18] and C: printf("myglobal equals %d\n",myglobal) [32] - UnprovableResult [Line: 36]: 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 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: 18]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 87 edges, 7 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: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 65 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=194occurred 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, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 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 11:08:00,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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)