./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:32:08,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:32:08,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:32:08,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:32:08,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:32:08,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:32:08,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:32:08,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:32:08,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:32:08,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:32:08,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:32:08,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:32:08,297 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:32:08,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:32:08,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:32:08,297 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:32:08,298 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:32:08,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:32:08,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:32:08,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:32:08,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:32:08,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:32:08,300 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 -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2025-04-30 10:32:08,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:32:08,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:32:08,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:32:08,508 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:32:08,508 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:32:08,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2025-04-30 10:32:09,758 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3dc5d5/ef459b90e88d4d04946323a831012364/FLAGeaaf0f6b8 [2025-04-30 10:32:09,976 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:32:09,981 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2025-04-30 10:32:09,999 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3dc5d5/ef459b90e88d4d04946323a831012364/FLAGeaaf0f6b8 [2025-04-30 10:32:10,808 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3dc5d5/ef459b90e88d4d04946323a831012364 [2025-04-30 10:32:10,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:32:10,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:32:10,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:32:10,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:32:10,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:32:10,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:32:10" (1/1) ... [2025-04-30 10:32:10,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3732b946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:10, skipping insertion in model container [2025-04-30 10:32:10,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:32:10" (1/1) ... [2025-04-30 10:32:10,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:32:11,214 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:32:11,226 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:32:11,275 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:32:11,317 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:32:11,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11 WrapperNode [2025-04-30 10:32:11,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:32:11,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:32:11,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:32:11,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:32:11,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,352 INFO L138 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2025-04-30 10:32:11,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:32:11,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:32:11,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:32:11,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:32:11,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:32:11,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:32:11,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:32:11,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:32:11,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (1/1) ... [2025-04-30 10:32:11,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:32:11,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:32:11,403 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) [2025-04-30 10:32:11,405 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 [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2025-04-30 10:32:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-30 10:32:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-30 10:32:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-30 10:32:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-30 10:32:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:32:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:32:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:32:11,422 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:32:11,517 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:32:11,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:32:11,658 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:32:11,658 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:32:11,682 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:32:11,683 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:32:11,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:32:11 BoogieIcfgContainer [2025-04-30 10:32:11,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:32:11,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:32:11,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:32:11,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:32:11,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:32:10" (1/3) ... [2025-04-30 10:32:11,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ada17cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:32:11, skipping insertion in model container [2025-04-30 10:32:11,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:32:11" (2/3) ... [2025-04-30 10:32:11,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ada17cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:32:11, skipping insertion in model container [2025-04-30 10:32:11,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:32:11" (3/3) ... [2025-04-30 10:32:11,690 INFO L128 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2025-04-30 10:32:11,700 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:32:11,703 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton_with-uninit-problems.i that has 5 procedures, 123 locations, 121 edges, 1 initial locations, 0 loop locations, and 9 error locations. [2025-04-30 10:32:11,703 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:32:11,801 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2025-04-30 10:32:11,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 182 transitions, 461 flow [2025-04-30 10:32:11,876 INFO L116 PetriNetUnfolderBase]: 8/138 cut-off events. [2025-04-30 10:32:11,878 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-30 10:32:11,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 138 events. 8/138 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2025-04-30 10:32:11,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 182 transitions, 461 flow [2025-04-30 10:32:11,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 115 transitions, 281 flow [2025-04-30 10:32:11,888 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:32:11,896 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;@217d0a90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:32:11,896 INFO L341 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-04-30 10:32:11,904 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:32:11,904 INFO L116 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-04-30 10:32:11,904 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:32:11,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:32:11,905 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] [2025-04-30 10:32:11,905 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2025-04-30 10:32:11,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:32:11,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1917513742, now seen corresponding path program 1 times [2025-04-30 10:32:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:32:11,914 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641238691] [2025-04-30 10:32:11,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:32:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:32:11,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-30 10:32:12,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-30 10:32:12,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:32:12,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:32:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:32:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:32:12,121 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641238691] [2025-04-30 10:32:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641238691] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:32:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:32:12,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:32:12,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012190220] [2025-04-30 10:32:12,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:32:12,129 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:32:12,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:32:12,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:32:12,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:32:12,176 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 184 [2025-04-30 10:32:12,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2025-04-30 10:32:12,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:32:12,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 184 [2025-04-30 10:32:12,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:32:12,279 INFO L116 PetriNetUnfolderBase]: 67/261 cut-off events. [2025-04-30 10:32:12,279 INFO L117 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2025-04-30 10:32:12,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 261 events. 67/261 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 751 event pairs, 51 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 413. Up to 121 conditions per place. [2025-04-30 10:32:12,283 INFO L140 encePairwiseOnDemand]: 173/184 looper letters, 25 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2025-04-30 10:32:12,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 106 transitions, 317 flow [2025-04-30 10:32:12,285 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:32:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:32:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2025-04-30 10:32:12,297 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7771739130434783 [2025-04-30 10:32:12,298 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 281 flow. Second operand 3 states and 429 transitions. [2025-04-30 10:32:12,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 106 transitions, 317 flow [2025-04-30 10:32:12,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 106 transitions, 283 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-04-30 10:32:12,304 INFO L231 Difference]: Finished difference. Result has 110 places, 106 transitions, 233 flow [2025-04-30 10:32:12,306 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=110, PETRI_TRANSITIONS=106} [2025-04-30 10:32:12,307 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, -19 predicate places. [2025-04-30 10:32:12,308 INFO L485 AbstractCegarLoop]: Abstraction has has 110 places, 106 transitions, 233 flow [2025-04-30 10:32:12,308 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2025-04-30 10:32:12,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:32:12,308 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, 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] [2025-04-30 10:32:12,308 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:32:12,309 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2025-04-30 10:32:12,309 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:32:12,309 INFO L85 PathProgramCache]: Analyzing trace with hash 354573498, now seen corresponding path program 1 times [2025-04-30 10:32:12,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:32:12,310 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613211288] [2025-04-30 10:32:12,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:32:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:32:12,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-30 10:32:12,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-30 10:32:12,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:32:12,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:32:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:32:12,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:32:12,440 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613211288] [2025-04-30 10:32:12,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613211288] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:32:12,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:32:12,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:32:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636646606] [2025-04-30 10:32:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:32:12,441 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:32:12,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:32:12,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:32:12,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:32:12,452 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 184 [2025-04-30 10:32:12,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2025-04-30 10:32:12,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:32:12,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 184 [2025-04-30 10:32:12,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:32:12,537 INFO L116 PetriNetUnfolderBase]: 67/280 cut-off events. [2025-04-30 10:32:12,537 INFO L117 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-04-30 10:32:12,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 280 events. 67/280 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 835 event pairs, 29 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 383. Up to 112 conditions per place. [2025-04-30 10:32:12,541 INFO L140 encePairwiseOnDemand]: 178/184 looper letters, 29 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2025-04-30 10:32:12,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 312 flow [2025-04-30 10:32:12,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:32:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:32:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2025-04-30 10:32:12,544 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7753623188405797 [2025-04-30 10:32:12,544 INFO L175 Difference]: Start difference. First operand has 110 places, 106 transitions, 233 flow. Second operand 3 states and 428 transitions. [2025-04-30 10:32:12,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 111 transitions, 312 flow [2025-04-30 10:32:12,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 111 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:32:12,548 INFO L231 Difference]: Finished difference. Result has 109 places, 108 transitions, 253 flow [2025-04-30 10:32:12,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=109, PETRI_TRANSITIONS=108} [2025-04-30 10:32:12,549 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, -20 predicate places. [2025-04-30 10:32:12,549 INFO L485 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 253 flow [2025-04-30 10:32:12,549 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2025-04-30 10:32:12,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:32:12,550 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, 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] [2025-04-30 10:32:12,550 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:32:12,550 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2025-04-30 10:32:12,550 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:32:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash 338775487, now seen corresponding path program 1 times [2025-04-30 10:32:12,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:32:12,551 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281964654] [2025-04-30 10:32:12,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:32:12,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:32:12,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-04-30 10:32:12,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-04-30 10:32:12,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:32:12,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:32:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:32:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:32:12,735 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281964654] [2025-04-30 10:32:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281964654] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:32:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:32:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:32:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264721948] [2025-04-30 10:32:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:32:12,736 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:32:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:32:12,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:32:12,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:32:12,752 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 184 [2025-04-30 10:32:12,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 108 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2025-04-30 10:32:12,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:32:12,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 184 [2025-04-30 10:32:12,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:32:12,803 INFO L116 PetriNetUnfolderBase]: 67/263 cut-off events. [2025-04-30 10:32:12,803 INFO L117 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-04-30 10:32:12,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 263 events. 67/263 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 765 event pairs, 35 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 442. Up to 119 conditions per place. [2025-04-30 10:32:12,804 INFO L140 encePairwiseOnDemand]: 181/184 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2025-04-30 10:32:12,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 106 transitions, 309 flow [2025-04-30 10:32:12,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:32:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:32:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2025-04-30 10:32:12,806 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7572463768115942 [2025-04-30 10:32:12,806 INFO L175 Difference]: Start difference. First operand has 109 places, 108 transitions, 253 flow. Second operand 3 states and 418 transitions. [2025-04-30 10:32:12,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 106 transitions, 309 flow [2025-04-30 10:32:12,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 106 transitions, 309 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:32:12,807 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2025-04-30 10:32:12,807 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2025-04-30 10:32:12,807 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, -20 predicate places. [2025-04-30 10:32:12,808 INFO L485 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2025-04-30 10:32:12,808 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2025-04-30 10:32:12,809 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2025-04-30 10:32:12,810 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2025-04-30 10:32:12,811 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2025-04-30 10:32:12,811 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2025-04-30 10:32:12,811 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2025-04-30 10:32:12,811 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2025-04-30 10:32:12,812 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2025-04-30 10:32:12,813 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2025-04-30 10:32:12,813 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:32:12,813 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:32:12,818 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:32:12,818 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:32:12,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:32:12 BasicIcfg [2025-04-30 10:32:12,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:32:12,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:32:12,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:32:12,823 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:32:12,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:32:11" (3/4) ... [2025-04-30 10:32:12,824 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:32:12,826 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2025-04-30 10:32:12,826 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-30 10:32:12,826 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-30 10:32:12,826 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-04-30 10:32:12,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-04-30 10:32:12,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:32:12,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:32:12,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:32:12,882 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:32:12,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:32:12,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:32:12,884 INFO L158 Benchmark]: Toolchain (without parser) took 2072.23ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 87.8MB in the end (delta: 43.5MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2025-04-30 10:32:12,884 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:32:12,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.38ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 95.6MB in the end (delta: 35.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:32:12,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.57ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.1MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:32:12,885 INFO L158 Benchmark]: Boogie Preprocessor took 24.36ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 91.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:32:12,885 INFO L158 Benchmark]: RCFGBuilder took 305.36ms. Allocated memory is still 167.8MB. Free memory was 91.8MB in the beginning and 74.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:32:12,885 INFO L158 Benchmark]: TraceAbstraction took 1136.71ms. Allocated memory is still 167.8MB. Free memory was 73.7MB in the beginning and 93.2MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:32:12,886 INFO L158 Benchmark]: Witness Printer took 60.18ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 87.8MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:32:12,887 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.38ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 95.6MB in the end (delta: 35.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.57ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.1MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.36ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 91.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.36ms. Allocated memory is still 167.8MB. Free memory was 91.8MB in the beginning and 74.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1136.71ms. Allocated memory is still 167.8MB. Free memory was 73.7MB in the beginning and 93.2MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.18ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 87.8MB 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: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: 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 11 procedures, 218 locations, 242 edges, 29 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: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:32:12,901 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