./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:26:13,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:26:13,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:26:13,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:26:13,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:26:13,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:26:13,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:26:13,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:26:13,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:26:13,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:26:13,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:26:13,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:26:13,928 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:26:13,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:26:13,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:26:13,928 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:26:13,930 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:26:13,930 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:13,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:13,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:26:13,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:26:13,931 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-jdk21/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 -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2025-01-09 21:26:14,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:26:14,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:26:14,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:26:14,195 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:26:14,201 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:26:14,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2025-01-09 21:26:15,398 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/afe4c9b5f/521d9b5be6c748eb9fc89822c273e63f/FLAG3650c1aae [2025-01-09 21:26:15,726 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:26:15,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2025-01-09 21:26:15,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/afe4c9b5f/521d9b5be6c748eb9fc89822c273e63f/FLAG3650c1aae [2025-01-09 21:26:15,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/afe4c9b5f/521d9b5be6c748eb9fc89822c273e63f [2025-01-09 21:26:15,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:26:15,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:26:15,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:26:15,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:26:15,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:26:15,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:26:15" (1/1) ... [2025-01-09 21:26:15,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6254f907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:15, skipping insertion in model container [2025-01-09 21:26:15,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:26:15" (1/1) ... [2025-01-09 21:26:15,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:26:16,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:26:16,019 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:26:16,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:26:16,080 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:26:16,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16 WrapperNode [2025-01-09 21:26:16,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:26:16,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:26:16,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:26:16,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:26:16,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,107 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2025-01-09 21:26:16,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:26:16,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:26:16,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:26:16,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:26:16,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,119 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:26:16,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:26:16,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:26:16,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:26:16,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (1/1) ... [2025-01-09 21:26:16,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:16,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:26:16,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:26:16,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:26:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:26:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:26:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:26:16,181 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:26:16,257 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:26:16,259 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:26:16,346 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:26:16,346 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:26:16,362 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:26:16,363 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:26:16,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:16 BoogieIcfgContainer [2025-01-09 21:26:16,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:26:16,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:26:16,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:26:16,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:26:16,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:26:15" (1/3) ... [2025-01-09 21:26:16,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a54606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:26:16, skipping insertion in model container [2025-01-09 21:26:16,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:16" (2/3) ... [2025-01-09 21:26:16,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a54606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:26:16, skipping insertion in model container [2025-01-09 21:26:16,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:16" (3/3) ... [2025-01-09 21:26:16,370 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2025-01-09 21:26:16,380 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:26:16,381 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i that has 2 procedures, 73 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-09 21:26:16,381 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:26:16,419 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:26:16,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 152 flow [2025-01-09 21:26:16,467 INFO L124 PetriNetUnfolderBase]: 2/73 cut-off events. [2025-01-09 21:26:16,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:26:16,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2025-01-09 21:26:16,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 74 transitions, 152 flow [2025-01-09 21:26:16,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 73 transitions, 149 flow [2025-01-09 21:26:16,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:26:16,486 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4022eea1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:26:16,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 21:26:16,496 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:26:16,496 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2025-01-09 21:26:16,496 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:26:16,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:16,496 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] [2025-01-09 21:26:16,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:26:16,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -808443589, now seen corresponding path program 1 times [2025-01-09 21:26:16,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:16,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628741206] [2025-01-09 21:26:16,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:16,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:16,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 21:26:16,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 21:26:16,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:16,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628741206] [2025-01-09 21:26:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628741206] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:16,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:16,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:26:16,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188653493] [2025-01-09 21:26:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:16,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:16,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:16,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:16,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:16,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 74 [2025-01-09 21:26:16,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2025-01-09 21:26:16,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:16,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 74 [2025-01-09 21:26:16,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:16,783 INFO L124 PetriNetUnfolderBase]: 32/193 cut-off events. [2025-01-09 21:26:16,788 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:26:16,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 193 events. 32/193 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 696 event pairs, 24 based on Foata normal form. 17/203 useless extension candidates. Maximal degree in co-relation 244. Up to 64 conditions per place. [2025-01-09 21:26:16,790 INFO L140 encePairwiseOnDemand]: 67/74 looper letters, 16 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-01-09 21:26:16,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 193 flow [2025-01-09 21:26:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:16,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2025-01-09 21:26:16,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2025-01-09 21:26:16,801 INFO L175 Difference]: Start difference. First operand has 75 places, 73 transitions, 149 flow. Second operand 3 states and 196 transitions. [2025-01-09 21:26:16,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 193 flow [2025-01-09 21:26:16,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:26:16,809 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 170 flow [2025-01-09 21:26:16,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2025-01-09 21:26:16,813 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2025-01-09 21:26:16,814 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 170 flow [2025-01-09 21:26:16,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2025-01-09 21:26:16,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:16,814 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:26:16,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:26:16,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:26:16,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 226679816, now seen corresponding path program 1 times [2025-01-09 21:26:16,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:16,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495017564] [2025-01-09 21:26:16,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:16,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:16,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-09 21:26:16,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-09 21:26:16,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:16,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:16,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:16,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495017564] [2025-01-09 21:26:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495017564] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:16,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:16,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:26:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777644196] [2025-01-09 21:26:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:16,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:16,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:16,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:16,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2025-01-09 21:26:16,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2025-01-09 21:26:16,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:16,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2025-01-09 21:26:16,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:16,981 INFO L124 PetriNetUnfolderBase]: 30/284 cut-off events. [2025-01-09 21:26:16,981 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2025-01-09 21:26:16,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 284 events. 30/284 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1344 event pairs, 17 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 379. Up to 51 conditions per place. [2025-01-09 21:26:16,983 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 13 selfloop transitions, 3 changer transitions 5/78 dead transitions. [2025-01-09 21:26:16,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 224 flow [2025-01-09 21:26:16,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2025-01-09 21:26:16,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2025-01-09 21:26:16,986 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 170 flow. Second operand 3 states and 196 transitions. [2025-01-09 21:26:16,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 224 flow [2025-01-09 21:26:16,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:26:16,990 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 176 flow [2025-01-09 21:26:16,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2025-01-09 21:26:16,992 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2025-01-09 21:26:16,992 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 176 flow [2025-01-09 21:26:16,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2025-01-09 21:26:16,992 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:16,992 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:26:16,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:26:16,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-01-09 21:26:16,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1333026622, now seen corresponding path program 1 times [2025-01-09 21:26:16,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:16,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418272932] [2025-01-09 21:26:16,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:16,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:17,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-09 21:26:17,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-09 21:26:17,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:17,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:17,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418272932] [2025-01-09 21:26:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418272932] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:17,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 21:26:17,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162937043] [2025-01-09 21:26:17,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:26:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:17,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:26:17,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:26:17,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 74 [2025-01-09 21:26:17,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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) [2025-01-09 21:26:17,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:17,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 74 [2025-01-09 21:26:17,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:17,415 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2025-01-09 21:26:17,416 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-01-09 21:26:17,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 147 events. 8/147 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 355 event pairs, 3 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 168. Up to 15 conditions per place. [2025-01-09 21:26:17,416 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2025-01-09 21:26:17,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 70 transitions, 184 flow [2025-01-09 21:26:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:26:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 21:26:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 320 transitions. [2025-01-09 21:26:17,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8648648648648649 [2025-01-09 21:26:17,418 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 176 flow. Second operand 5 states and 320 transitions. [2025-01-09 21:26:17,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 70 transitions, 184 flow [2025-01-09 21:26:17,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 169 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-01-09 21:26:17,421 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2025-01-09 21:26:17,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2025-01-09 21:26:17,423 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 0 predicate places. [2025-01-09 21:26:17,424 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2025-01-09 21:26:17,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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) [2025-01-09 21:26:17,426 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-01-09 21:26:17,426 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-09 21:26:17,426 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-01-09 21:26:17,426 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-01-09 21:26:17,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:26:17,427 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:26:17,430 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:26:17,431 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:26:17,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:26:17 BasicIcfg [2025-01-09 21:26:17,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:26:17,435 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:26:17,435 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:26:17,435 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:26:17,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:16" (3/4) ... [2025-01-09 21:26:17,437 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:26:17,439 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-09 21:26:17,441 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 21:26:17,441 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 21:26:17,441 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 21:26:17,441 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 21:26:17,488 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:26:17,488 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:26:17,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:26:17,489 INFO L158 Benchmark]: Toolchain (without parser) took 1736.66ms. Allocated memory is still 201.3MB. Free memory was 158.3MB in the beginning and 118.2MB in the end (delta: 40.1MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,489 INFO L158 Benchmark]: CDTParser took 1.14ms. Allocated memory is still 218.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:26:17,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.48ms. Allocated memory is still 201.3MB. Free memory was 158.0MB in the beginning and 138.8MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.73ms. Allocated memory is still 201.3MB. Free memory was 138.8MB in the beginning and 137.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:26:17,490 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 201.3MB. Free memory was 137.2MB in the beginning and 136.2MB in the end (delta: 985.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,490 INFO L158 Benchmark]: RCFGBuilder took 232.53ms. Allocated memory is still 201.3MB. Free memory was 136.2MB in the beginning and 121.4MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,490 INFO L158 Benchmark]: TraceAbstraction took 1070.15ms. Allocated memory is still 201.3MB. Free memory was 121.1MB in the beginning and 123.6MB in the end (delta: -2.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,490 INFO L158 Benchmark]: Witness Printer took 53.37ms. Allocated memory is still 201.3MB. Free memory was 123.6MB in the beginning and 118.2MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:17,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14ms. Allocated memory is still 218.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.48ms. Allocated memory is still 201.3MB. Free memory was 158.0MB in the beginning and 138.8MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.73ms. Allocated memory is still 201.3MB. Free memory was 138.8MB in the beginning and 137.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 201.3MB. Free memory was 137.2MB in the beginning and 136.2MB in the end (delta: 985.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 232.53ms. Allocated memory is still 201.3MB. Free memory was 136.2MB in the beginning and 121.4MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1070.15ms. Allocated memory is still 201.3MB. Free memory was 121.1MB in the beginning and 123.6MB in the end (delta: -2.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 53.37ms. Allocated memory is still 201.3MB. Free memory was 123.6MB in the beginning and 118.2MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 92 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 17 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:26:17,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Result: TRUE