./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.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 3bce766265758e61867fcdbaff1bec6a29db406f0f282af532fdb091b8fe9a0b --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:10:16,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:10:16,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:10:16,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:10:16,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:10:16,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:10:16,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:10:16,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:10:16,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:10:16,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:10:16,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:10:16,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:10:16,370 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:10:16,371 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:16,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:16,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:10:16,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:10:16,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:10:16,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:10:16,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:10:16,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:10:16,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:10:16,373 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 -> 3bce766265758e61867fcdbaff1bec6a29db406f0f282af532fdb091b8fe9a0b [2025-04-29 11:10:16,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:10:16,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:10:16,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:10:16,610 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:10:16,611 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:10:16,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.c [2025-04-29 11:10:17,941 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd791e14a/8b3b5bbbda4441cc96315bd78ed729ec/FLAG998cbaa6a [2025-04-29 11:10:18,158 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:10:18,158 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.c [2025-04-29 11:10:18,159 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:18,159 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:10:18,166 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd791e14a/8b3b5bbbda4441cc96315bd78ed729ec/FLAG998cbaa6a [2025-04-29 11:10:18,942 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd791e14a/8b3b5bbbda4441cc96315bd78ed729ec [2025-04-29 11:10:18,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:10:18,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:10:18,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:18,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:10:18,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:10:18,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:18" (1/1) ... [2025-04-29 11:10:18,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efd9e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:18, skipping insertion in model container [2025-04-29 11:10:18,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:10:18" (1/1) ... [2025-04-29 11:10:18,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:10:19,086 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:19,095 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:10:19,111 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:10:19,123 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:10:19,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19 WrapperNode [2025-04-29 11:10:19,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:10:19,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:19,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:10:19,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:10:19,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,146 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2025-04-29 11:10:19,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:10:19,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:10:19,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:10:19,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:10:19,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:10:19,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:10:19,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:10:19,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:10:19,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (1/1) ... [2025-04-29 11:10:19,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:10:19,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:10:19,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:10:19,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:10:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:10:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:10:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:10:19,209 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:10:19,267 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:10:19,268 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:10:19,389 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:10:19,389 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:10:19,406 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:10:19,406 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:10:19,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:19 BoogieIcfgContainer [2025-04-29 11:10:19,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:10:19,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:10:19,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:10:19,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:10:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:10:18" (1/3) ... [2025-04-29 11:10:19,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471d594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:19, skipping insertion in model container [2025-04-29 11:10:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:10:19" (2/3) ... [2025-04-29 11:10:19,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471d594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:10:19, skipping insertion in model container [2025-04-29 11:10:19,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:19" (3/3) ... [2025-04-29 11:10:19,413 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.c [2025-04-29 11:10:19,422 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:10:19,425 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.c that has 2 procedures, 58 locations, 57 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-29 11:10:19,425 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:10:19,461 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:10:19,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 120 flow [2025-04-29 11:10:19,521 INFO L116 PetriNetUnfolderBase]: 1/57 cut-off events. [2025-04-29 11:10:19,523 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:19,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-04-29 11:10:19,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 120 flow [2025-04-29 11:10:19,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 57 transitions, 117 flow [2025-04-29 11:10:19,533 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:10:19,542 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;@412e69da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:10:19,542 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-29 11:10:19,554 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:10:19,556 INFO L116 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-04-29 11:10:19,556 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:10:19,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:19,557 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:10:19,557 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:10:19,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash 253215209, now seen corresponding path program 1 times [2025-04-29 11:10:19,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:19,566 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757480489] [2025-04-29 11:10:19,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:19,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:19,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-29 11:10:19,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-29 11:10:19,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:19,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,738 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757480489] [2025-04-29 11:10:19,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757480489] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:19,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634462466] [2025-04-29 11:10:19,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,745 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:19,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:19,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:19,794 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 58 [2025-04-29 11:10:19,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 58 [2025-04-29 11:10:19,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:19,871 INFO L116 PetriNetUnfolderBase]: 32/175 cut-off events. [2025-04-29 11:10:19,873 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:10:19,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 175 events. 32/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 664 event pairs, 24 based on Foata normal form. 9/176 useless extension candidates. Maximal degree in co-relation 238. Up to 64 conditions per place. [2025-04-29 11:10:19,876 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 16 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2025-04-29 11:10:19,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 61 transitions, 165 flow [2025-04-29 11:10:19,878 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2025-04-29 11:10:19,888 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8563218390804598 [2025-04-29 11:10:19,889 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 117 flow. Second operand 3 states and 149 transitions. [2025-04-29 11:10:19,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 61 transitions, 165 flow [2025-04-29 11:10:19,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:10:19,895 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 142 flow [2025-04-29 11:10:19,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2025-04-29 11:10:19,901 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2025-04-29 11:10:19,902 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 142 flow [2025-04-29 11:10:19,902 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,902 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:19,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:10:19,902 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:10:19,903 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:10:19,903 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1883941116, now seen corresponding path program 1 times [2025-04-29 11:10:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:19,904 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454635795] [2025-04-29 11:10:19,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:19,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-29 11:10:19,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-29 11:10:19,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:19,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:19,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:19,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:19,962 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454635795] [2025-04-29 11:10:19,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454635795] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:19,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:19,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:10:19,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789991241] [2025-04-29 11:10:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:19,964 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:10:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:19,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:10:19,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:10:19,974 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 58 [2025-04-29 11:10:19,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:19,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:19,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 58 [2025-04-29 11:10:19,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:20,049 INFO L116 PetriNetUnfolderBase]: 30/254 cut-off events. [2025-04-29 11:10:20,049 INFO L117 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2025-04-29 11:10:20,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 254 events. 30/254 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1208 event pairs, 17 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 361. Up to 51 conditions per place. [2025-04-29 11:10:20,051 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 13 selfloop transitions, 3 changer transitions 5/64 dead transitions. [2025-04-29 11:10:20,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 196 flow [2025-04-29 11:10:20,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:10:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:10:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2025-04-29 11:10:20,052 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.867816091954023 [2025-04-29 11:10:20,052 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 142 flow. Second operand 3 states and 151 transitions. [2025-04-29 11:10:20,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 196 flow [2025-04-29 11:10:20,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:10:20,054 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 148 flow [2025-04-29 11:10:20,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2025-04-29 11:10:20,055 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2025-04-29 11:10:20,056 INFO L485 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 148 flow [2025-04-29 11:10:20,056 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:20,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:10:20,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:10:20,056 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:10:20,056 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-04-29 11:10:20,057 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:10:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1265919643, now seen corresponding path program 1 times [2025-04-29 11:10:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:10:20,057 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160292939] [2025-04-29 11:10:20,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:10:20,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:10:20,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-29 11:10:20,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-29 11:10:20,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:10:20,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:10:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:10:20,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:10:20,332 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160292939] [2025-04-29 11:10:20,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160292939] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:10:20,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:10:20,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-29 11:10:20,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255514186] [2025-04-29 11:10:20,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:10:20,334 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:10:20,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:10:20,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:10:20,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:10:20,357 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 58 [2025-04-29 11:10:20,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 47.333333333333336) internal successors, (284), 6 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:20,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:10:20,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 58 [2025-04-29 11:10:20,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:10:20,437 INFO L116 PetriNetUnfolderBase]: 8/127 cut-off events. [2025-04-29 11:10:20,438 INFO L117 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-04-29 11:10:20,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 127 events. 8/127 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 316 event pairs, 3 based on Foata normal form. 3/125 useless extension candidates. Maximal degree in co-relation 160. Up to 15 conditions per place. [2025-04-29 11:10:20,438 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2025-04-29 11:10:20,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 56 transitions, 156 flow [2025-04-29 11:10:20,441 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:10:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:10:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2025-04-29 11:10:20,442 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2025-04-29 11:10:20,442 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 148 flow. Second operand 5 states and 245 transitions. [2025-04-29 11:10:20,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 56 transitions, 156 flow [2025-04-29 11:10:20,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 141 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-04-29 11:10:20,446 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2025-04-29 11:10:20,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2025-04-29 11:10:20,447 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2025-04-29 11:10:20,448 INFO L485 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2025-04-29 11:10:20,448 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.333333333333336) internal successors, (284), 6 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:10:20,450 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-04-29 11:10:20,450 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-29 11:10:20,450 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-04-29 11:10:20,450 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-04-29 11:10:20,450 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:10:20,450 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:10:20,454 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:10:20,454 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:10:20,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:10:20 BasicIcfg [2025-04-29 11:10:20,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:10:20,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:10:20,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:10:20,463 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:10:20,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:10:19" (3/4) ... [2025-04-29 11:10:20,464 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:10:20,466 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:10:20,469 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-29 11:10:20,469 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:20,469 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:10:20,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:10:20,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:10:20,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:10:20,516 INFO L158 Benchmark]: Toolchain (without parser) took 1570.78ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 70.4MB in the end (delta: 43.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2025-04-29 11:10:20,516 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:20,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.53ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 100.2MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:20,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.62ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:20,519 INFO L158 Benchmark]: Boogie Preprocessor took 18.26ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.8MB in the end (delta: 784.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:20,519 INFO L158 Benchmark]: RCFGBuilder took 241.07ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 84.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:10:20,519 INFO L158 Benchmark]: TraceAbstraction took 1053.87ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 75.8MB in the end (delta: 8.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2025-04-29 11:10:20,520 INFO L158 Benchmark]: Witness Printer took 52.93ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 70.4MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:10:20,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.53ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 100.2MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.62ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.26ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.8MB in the end (delta: 784.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.07ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 84.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1053.87ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 75.8MB in the end (delta: 8.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 52.93ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 70.4MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 22]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 76 edges, 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, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 20 mSDtfsCounter, 107 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=148occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 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! [2025-04-29 11:10:20,534 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 Result: TRUE