./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 07:26:16,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 07:26:16,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 07:26:16,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 07:26:16,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 07:26:16,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 07:26:16,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 07:26:16,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 07:26:16,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 07:26:16,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 07:26:16,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 07:26:16,867 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 07:26:16,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 07:26:16,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 07:26:16,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-23 07:26:17,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 07:26:17,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 07:26:17,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 07:26:17,123 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 07:26:17,124 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 07:26:17,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2025-01-23 07:26:18,303 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/499867af0/a284a4f30a664e71ad5a04ec8894f55e/FLAG4c81279a4 [2025-01-23 07:26:18,560 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 07:26:18,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2025-01-23 07:26:18,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/499867af0/a284a4f30a664e71ad5a04ec8894f55e/FLAG4c81279a4 [2025-01-23 07:26:18,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/499867af0/a284a4f30a664e71ad5a04ec8894f55e [2025-01-23 07:26:18,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 07:26:18,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 07:26:18,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 07:26:18,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 07:26:18,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 07:26:18,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 07:26:18" (1/1) ... [2025-01-23 07:26:18,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ab906b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:18, skipping insertion in model container [2025-01-23 07:26:18,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 07:26:18" (1/1) ... [2025-01-23 07:26:18,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 07:26:19,176 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2025-01-23 07:26:19,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 07:26:19,196 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 07:26:19,256 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2025-01-23 07:26:19,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 07:26:19,302 INFO L204 MainTranslator]: Completed translation [2025-01-23 07:26:19,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19 WrapperNode [2025-01-23 07:26:19,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 07:26:19,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 07:26:19,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 07:26:19,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 07:26:19,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,338 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2025-01-23 07:26:19,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 07:26:19,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 07:26:19,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 07:26:19,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 07:26:19,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 07:26:19,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 07:26:19,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 07:26:19,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 07:26:19,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (1/1) ... [2025-01-23 07:26:19,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 07:26:19,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 07:26:19,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 07:26:19,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 07:26:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 07:26:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 07:26:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 07:26:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2025-01-23 07:26:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 07:26:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 07:26:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 07:26:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 07:26:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 07:26:19,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 07:26:19,418 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 07:26:19,553 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 07:26:19,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 07:26:19,669 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 07:26:19,669 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 07:26:19,755 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 07:26:19,756 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 07:26:19,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 07:26:19 BoogieIcfgContainer [2025-01-23 07:26:19,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 07:26:19,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 07:26:19,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 07:26:19,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 07:26:19,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 07:26:18" (1/3) ... [2025-01-23 07:26:19,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8beda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 07:26:19, skipping insertion in model container [2025-01-23 07:26:19,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 07:26:19" (2/3) ... [2025-01-23 07:26:19,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8beda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 07:26:19, skipping insertion in model container [2025-01-23 07:26:19,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 07:26:19" (3/3) ... [2025-01-23 07:26:19,766 INFO L128 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2025-01-23 07:26:19,775 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 07:26:19,777 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton_with-uninit-problems.i that has 5 procedures, 39 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-23 07:26:19,777 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 07:26:19,837 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2025-01-23 07:26:19,878 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 07:26:19,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 07:26:19,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 07:26:19,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 07:26:19,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 07:26:19,940 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 07:26:19,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 07:26:19,956 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@19e3f957, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 07:26:19,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-23 07:26:21,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 07:26:21,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 07:26:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1373960454, now seen corresponding path program 1 times [2025-01-23 07:26:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 07:26:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846706908] [2025-01-23 07:26:21,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 07:26:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 07:26:21,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-23 07:26:21,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-23 07:26:21,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 07:26:21,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 07:26:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 07:26:21,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 07:26:21,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846706908] [2025-01-23 07:26:21,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846706908] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 07:26:21,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 07:26:21,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 07:26:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072509909] [2025-01-23 07:26:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 07:26:21,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 07:26:21,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 07:26:21,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 07:26:21,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 07:26:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 07:26:21,574 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 07:26:21,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 07:26:21,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 07:26:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 07:26:21,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 07:26:21,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 07:26:21,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 07:26:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1183192826, now seen corresponding path program 2 times [2025-01-23 07:26:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 07:26:21,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066691128] [2025-01-23 07:26:21,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 07:26:21,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 07:26:21,713 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 1 equivalence classes. [2025-01-23 07:26:21,721 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-23 07:26:21,722 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 07:26:21,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 07:26:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 07:26:21,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 07:26:21,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066691128] [2025-01-23 07:26:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066691128] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 07:26:21,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 07:26:21,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 07:26:21,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601624129] [2025-01-23 07:26:21,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 07:26:21,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 07:26:21,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 07:26:21,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 07:26:21,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 07:26:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 07:26:21,897 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 07:26:21,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 07:26:21,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 07:26:21,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 07:26:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 07:26:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 07:26:22,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-01-23 07:26:22,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-01-23 07:26:22,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 07:26:22,408 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-01-23 07:26:22,410 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (1/2) [2025-01-23 07:26:22,415 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 07:26:22,416 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 07:26:22,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread0Thread1of1ForFork4 ======== [2025-01-23 07:26:22,419 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@19e3f957, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 07:26:22,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-01-23 07:26:22,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2025-01-23 07:26:22,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-01-23 07:26:22,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-01-23 07:26:22,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-01-23 07:26:22,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-01-23 07:26:22,432 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-01-23 07:26:22,434 INFO L319 ceAbstractionStarter]: Result for error location thread0Thread1of1ForFork4 was SAFE,SAFE,SAFE,SAFE,SAFE (2/2) [2025-01-23 07:26:22,434 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-23 07:26:22,434 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-23 07:26:22,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 07:26:22,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 07:26:22 BasicIcfg [2025-01-23 07:26:22,444 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-23 07:26:22,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-23 07:26:22,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-23 07:26:22,445 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-23 07:26:22,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 07:26:19" (3/4) ... [2025-01-23 07:26:22,448 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-23 07:26:22,450 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2025-01-23 07:26:22,450 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-23 07:26:22,450 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-23 07:26:22,450 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-01-23 07:26:22,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2025-01-23 07:26:22,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-01-23 07:26:22,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-23 07:26:22,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-23 07:26:22,531 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-01-23 07:26:22,531 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2025-01-23 07:26:22,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-23 07:26:22,534 INFO L158 Benchmark]: Toolchain (without parser) took 3636.57ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 57.7MB in the beginning and 75.2MB in the end (delta: -17.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2025-01-23 07:26:22,535 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 07:26:22,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.30ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 23.6MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-23 07:26:22,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.29ms. Allocated memory is still 83.9MB. Free memory was 23.6MB in the beginning and 21.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 07:26:22,536 INFO L158 Benchmark]: Boogie Preprocessor took 32.07ms. Allocated memory is still 83.9MB. Free memory was 21.6MB in the beginning and 58.5MB in the end (delta: -36.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2025-01-23 07:26:22,536 INFO L158 Benchmark]: RCFGBuilder took 385.34ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 37.8MB in the end (delta: 20.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-23 07:26:22,537 INFO L158 Benchmark]: TraceAbstraction took 2684.73ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 37.2MB in the beginning and 81.8MB in the end (delta: -44.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2025-01-23 07:26:22,537 INFO L158 Benchmark]: Witness Printer took 86.56ms. Allocated memory is still 125.8MB. Free memory was 80.5MB in the beginning and 75.2MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 07:26:22,538 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.30ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 23.6MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.29ms. Allocated memory is still 83.9MB. Free memory was 23.6MB in the beginning and 21.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.07ms. Allocated memory is still 83.9MB. Free memory was 21.6MB in the beginning and 58.5MB in the end (delta: -36.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.34ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 37.8MB in the end (delta: 20.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2684.73ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 37.2MB in the beginning and 81.8MB in the end (delta: -44.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Witness Printer took 86.56ms. Allocated memory is still 125.8MB. Free memory was 80.5MB in the beginning and 75.2MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10033, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 230, dependent conditional: 197, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 156, dependent conditional: 123, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 156, dependent conditional: 123, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 279, dependent conditional: 246, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 279, dependent conditional: 88, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 279, dependent conditional: 88, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2482, independent: 2446, independent conditional: 0, independent unconditional: 2446, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2482, independent: 2435, independent conditional: 0, independent unconditional: 2435, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 47, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1018, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 876, dependent conditional: 20, dependent unconditional: 856, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10082, independent: 7357, independent conditional: 0, independent unconditional: 7357, dependent: 243, dependent conditional: 85, dependent unconditional: 158, unknown: 2482, unknown conditional: 3, unknown unconditional: 2479] , Statistics on independence cache: Total cache size (in pairs): 2482, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 36, Negative conditional cache size: 3, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7515, Maximal queried relation: 1, Independence queries for same thread: 74, Persistent sets #1 benchmarks: Persistent set computation time: 1.2s, Number of persistent set computation: 1548, Number of trivial persistent sets: 1543, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2479, independent: 2446, independent conditional: 0, independent unconditional: 2446, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10033, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 230, dependent conditional: 197, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 156, dependent conditional: 123, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 156, dependent conditional: 123, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 279, dependent conditional: 246, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 279, dependent conditional: 88, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10082, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 279, dependent conditional: 88, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2482, independent: 2446, independent conditional: 0, independent unconditional: 2446, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2482, independent: 2435, independent conditional: 0, independent unconditional: 2435, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 47, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 36, dependent conditional: 3, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1018, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 876, dependent conditional: 20, dependent unconditional: 856, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 10082, independent: 7357, independent conditional: 0, independent unconditional: 7357, dependent: 243, dependent conditional: 85, dependent unconditional: 158, unknown: 2482, unknown conditional: 3, unknown unconditional: 2479] , Statistics on independence cache: Total cache size (in pairs): 2482, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 36, Negative conditional cache size: 3, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7515, Maximal queried relation: 1, Independence queries for same thread: 74 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1276, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 48, Maximal queried relation: 0, Independence queries for same thread: 1, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 6, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1227, independent: 1208, independent conditional: 0, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1276, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 48, Maximal queried relation: 0, Independence queries for same thread: 1 - PositiveResult [Line: 1123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 87 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread0Thread1of1ForFork4 with 1 thread instances CFG has 11 procedures, 87 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-23 07:26:22,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE