./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/14_spin2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/14_spin2003.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83bca07672f78100877a79a1440d2a8107bad3ebb200d176bee629abfa2ef706 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 08:10:11,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 08:10:11,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-12-05 08:10:11,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 08:10:11,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 08:10:11,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 08:10:11,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 08:10:11,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 08:10:11,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 08:10:11,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 08:10:11,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 08:10:11,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 08:10:11,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 08:10:11,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 08:10:11,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:10:11,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 08:10:11,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 08:10:11,199 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 08:10:11,199 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 83bca07672f78100877a79a1440d2a8107bad3ebb200d176bee629abfa2ef706 [2024-12-05 08:10:11,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 08:10:11,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 08:10:11,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 08:10:11,429 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 08:10:11,429 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 08:10:11,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/pthread-ext/14_spin2003.i [2024-12-05 08:10:14,107 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/data/e32c5a9ca/a2e623a52a4c403bbd10893e4984a79e/FLAG80691516a [2024-12-05 08:10:14,120 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-05 08:10:14,299 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 08:10:14,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/sv-benchmarks/c/pthread-ext/14_spin2003.i [2024-12-05 08:10:14,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/data/e32c5a9ca/a2e623a52a4c403bbd10893e4984a79e/FLAG80691516a [2024-12-05 08:10:14,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/data/e32c5a9ca/a2e623a52a4c403bbd10893e4984a79e [2024-12-05 08:10:14,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 08:10:14,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 08:10:14,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 08:10:14,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 08:10:14,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 08:10:14,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c686d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14, skipping insertion in model container [2024-12-05 08:10:14,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 08:10:14,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:10:14,645 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 08:10:14,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:10:14,708 INFO L204 MainTranslator]: Completed translation [2024-12-05 08:10:14,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14 WrapperNode [2024-12-05 08:10:14,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 08:10:14,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 08:10:14,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 08:10:14,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 08:10:14,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,739 INFO L138 Inliner]: procedures = 161, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2024-12-05 08:10:14,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 08:10:14,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 08:10:14,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 08:10:14,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 08:10:14,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 08:10:14,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 08:10:14,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 08:10:14,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 08:10:14,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (1/1) ... [2024-12-05 08:10:14,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:10:14,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:10:14,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 08:10:14,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 08:10:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-12-05 08:10:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-12-05 08:10:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-05 08:10:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 08:10:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 08:10:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-05 08:10:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 08:10:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 08:10:14,815 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 08:10:14,914 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 08:10:14,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 08:10:15,019 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 08:10:15,019 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 08:10:15,103 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 08:10:15,104 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 08:10:15,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:10:15 BoogieIcfgContainer [2024-12-05 08:10:15,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 08:10:15,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 08:10:15,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 08:10:15,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 08:10:15,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:10:14" (1/3) ... [2024-12-05 08:10:15,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19177e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:10:15, skipping insertion in model container [2024-12-05 08:10:15,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:10:14" (2/3) ... [2024-12-05 08:10:15,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19177e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:10:15, skipping insertion in model container [2024-12-05 08:10:15,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:10:15" (3/3) ... [2024-12-05 08:10:15,115 INFO L128 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2024-12-05 08:10:15,131 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 08:10:15,132 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 14_spin2003.i that has 2 procedures, 17 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-12-05 08:10:15,133 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 08:10:15,169 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:15,212 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 08:10:15,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:10:15,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 08:10:15,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612d3dec-2328-439d-bcea-debdfddda2fd/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 08:10:15,277 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:15,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-12-05 08:10:15,292 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:15,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:15,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1048083609, now seen corresponding path program 1 times [2024-12-05 08:10:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:15,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204365391] [2024-12-05 08:10:15,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:15,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:15,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:15,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:15,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204365391] [2024-12-05 08:10:15,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204365391] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:15,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:15,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:15,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461252789] [2024-12-05 08:10:15,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:15,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:15,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:15,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:15,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:15,560 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:15,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-05 08:10:15,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:15,600 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:15,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 08:10:15,604 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:15,606 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-12-05 08:10:15,609 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,610 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:15,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:15,611 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:15,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:15,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash 141849935, now seen corresponding path program 1 times [2024-12-05 08:10:15,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:15,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692718292] [2024-12-05 08:10:15,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:15,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:15,643 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:15,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:15,669 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:15,669 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:15,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 08:10:15,670 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:15,671 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2024-12-05 08:10:15,671 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:15,671 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-05 08:10:15,685 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:15,687 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,693 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:15,694 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:15,694 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:15,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:15,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1412784794, now seen corresponding path program 1 times [2024-12-05 08:10:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:15,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071573146] [2024-12-05 08:10:15,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:15,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:15,741 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:15,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:15,753 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:15,753 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:15,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:15,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-05 08:10:15,754 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:15,755 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/3) [2024-12-05 08:10:15,755 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:15,755 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-05 08:10:15,770 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:15,771 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,779 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:15,780 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-12-05 08:10:15,780 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:15,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:15,854 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:15,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:15,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2016926412, now seen corresponding path program 1 times [2024-12-05 08:10:15,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:15,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826658055] [2024-12-05 08:10:15,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:15,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:15,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826658055] [2024-12-05 08:10:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826658055] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:15,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:15,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806046304] [2024-12-05 08:10:15,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:15,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:15,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:15,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:15,913 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:15,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-05 08:10:15,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:16,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:16,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-05 08:10:16,210 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:16,210 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4) [2024-12-05 08:10:16,212 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:16,213 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:16,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:16,213 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:16,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:16,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:16,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:16,244 INFO L85 PathProgramCache]: Analyzing trace with hash -533631486, now seen corresponding path program 1 times [2024-12-05 08:10:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:16,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992265223] [2024-12-05 08:10:16,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:16,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:16,256 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:16,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:16,268 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:16,268 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:16,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:16,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-05 08:10:16,270 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:16,270 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/4) [2024-12-05 08:10:16,270 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:16,270 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-05 08:10:16,288 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:16,290 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:16,299 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:16,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2024-12-05 08:10:16,300 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:16,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:16,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:16,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash 959700021, now seen corresponding path program 1 times [2024-12-05 08:10:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:16,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372410029] [2024-12-05 08:10:16,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:16,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372410029] [2024-12-05 08:10:16,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372410029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:16,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:16,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:16,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320626545] [2024-12-05 08:10:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:16,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:16,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:16,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:16,404 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:16,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-05 08:10:16,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:17,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:17,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-05 08:10:17,018 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:17,018 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE (1/5) [2024-12-05 08:10:17,019 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:17,020 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:17,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ======== [2024-12-05 08:10:17,021 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:17,021 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:17,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:17,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:17,067 INFO L85 PathProgramCache]: Analyzing trace with hash -653563399, now seen corresponding path program 1 times [2024-12-05 08:10:17,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:17,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578616226] [2024-12-05 08:10:17,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:17,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:17,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578616226] [2024-12-05 08:10:17,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578616226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:17,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:17,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:17,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932442186] [2024-12-05 08:10:17,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:17,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:17,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:17,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:17,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:17,109 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:17,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-05 08:10:17,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:17,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:17,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-05 08:10:17,615 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:17,615 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE (2/5) [2024-12-05 08:10:17,619 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:17,619 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:17,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ======== [2024-12-05 08:10:17,620 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:17,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:17,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:17,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash -944520592, now seen corresponding path program 1 times [2024-12-05 08:10:17,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:17,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654577138] [2024-12-05 08:10:17,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:17,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:17,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:17,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654577138] [2024-12-05 08:10:17,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654577138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:17,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:17,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:17,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656786969] [2024-12-05 08:10:17,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:17,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:17,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:17,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:17,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:17,687 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:17,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-05 08:10:17,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:18,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:18,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-05 08:10:18,277 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:18,277 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE (3/5) [2024-12-05 08:10:18,279 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,280 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:18,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ======== [2024-12-05 08:10:18,280 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,280 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:18,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:18,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1431537934, now seen corresponding path program 1 times [2024-12-05 08:10:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665695923] [2024-12-05 08:10:18,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:18,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:18,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665695923] [2024-12-05 08:10:18,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665695923] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:18,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:18,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:18,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433577999] [2024-12-05 08:10:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:18,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:18,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:18,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:18,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:18,361 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:18,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-12-05 08:10:18,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:18,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:18,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-05 08:10:18,787 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:18,787 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE (4/5) [2024-12-05 08:10:18,788 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,789 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:18,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:18,790 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:18,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:18,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1386043795, now seen corresponding path program 1 times [2024-12-05 08:10:18,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:18,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108893411] [2024-12-05 08:10:18,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:18,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:18,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:18,827 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:18,827 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:18,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:18,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-05 08:10:18,828 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:18,829 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (5/5) [2024-12-05 08:10:18,829 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:18,829 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-12-05 08:10:18,849 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:18,851 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,863 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:18,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ======== [2024-12-05 08:10:18,864 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:18,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:18,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:18,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:18,912 INFO L85 PathProgramCache]: Analyzing trace with hash 822446723, now seen corresponding path program 1 times [2024-12-05 08:10:18,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:18,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470751389] [2024-12-05 08:10:18,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:18,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:18,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470751389] [2024-12-05 08:10:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470751389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:18,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:18,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:18,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850149183] [2024-12-05 08:10:18,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:18,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:18,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:18,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:18,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:18,940 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:18,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-12-05 08:10:18,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:21,220 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:21,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-05 08:10:21,222 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:21,222 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread2of5ForFork0 was SAFE (1/6) [2024-12-05 08:10:21,223 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:21,224 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:21,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of5ForFork0 ======== [2024-12-05 08:10:21,225 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:21,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:21,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:21,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1517427221, now seen corresponding path program 1 times [2024-12-05 08:10:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:21,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691612444] [2024-12-05 08:10:21,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:21,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691612444] [2024-12-05 08:10:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691612444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:21,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606700259] [2024-12-05 08:10:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:21,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:21,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:21,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:21,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:21,291 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:21,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-05 08:10:21,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:22,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:22,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-05 08:10:22,985 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:22,985 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of5ForFork0 was SAFE (2/6) [2024-12-05 08:10:22,986 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:22,988 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:22,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:22,988 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:22,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:23,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:23,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:23,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1007258041, now seen corresponding path program 1 times [2024-12-05 08:10:23,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:23,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30068601] [2024-12-05 08:10:23,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:23,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:23,018 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:23,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:23,029 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:23,029 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:23,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:23,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-05 08:10:23,030 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:23,031 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/6) [2024-12-05 08:10:23,031 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:23,031 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-12-05 08:10:23,050 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:23,051 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:23,063 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:23,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread6of6ForFork0 ======== [2024-12-05 08:10:23,064 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:23,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:23,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:23,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:23,112 INFO L85 PathProgramCache]: Analyzing trace with hash 941988852, now seen corresponding path program 1 times [2024-12-05 08:10:23,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:23,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587995647] [2024-12-05 08:10:23,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587995647] [2024-12-05 08:10:23,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587995647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:23,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:23,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670040506] [2024-12-05 08:10:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:23,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:23,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:23,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:23,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:23,147 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:23,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-05 08:10:23,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:34,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:34,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:34,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-05 08:10:34,725 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:34,725 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread6of6ForFork0 was SAFE (1/7) [2024-12-05 08:10:34,726 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:34,727 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:34,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of6ForFork0 ======== [2024-12-05 08:10:34,727 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:34,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:34,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:34,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1141440792, now seen corresponding path program 1 times [2024-12-05 08:10:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:34,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050192329] [2024-12-05 08:10:34,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:34,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050192329] [2024-12-05 08:10:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050192329] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:34,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574139406] [2024-12-05 08:10:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:34,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:34,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:34,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:34,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:34,783 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:34,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-05 08:10:34,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:47,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:47,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:47,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-05 08:10:47,478 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:47,478 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of6ForFork0 was SAFE (2/7) [2024-12-05 08:10:47,479 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:47,480 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:47,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread5of6ForFork0 ======== [2024-12-05 08:10:47,480 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:47,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:47,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:47,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:47,518 INFO L85 PathProgramCache]: Analyzing trace with hash -953393322, now seen corresponding path program 1 times [2024-12-05 08:10:47,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:47,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347688808] [2024-12-05 08:10:47,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:47,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:47,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347688808] [2024-12-05 08:10:47,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347688808] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:47,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:47,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221074350] [2024-12-05 08:10:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:47,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:47,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:47,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:47,542 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:47,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-05 08:10:47,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:10:59,602 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:10:59,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-05 08:10:59,602 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:59,602 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread5of6ForFork0 was SAFE (3/7) [2024-12-05 08:10:59,603 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:59,604 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:59,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:10:59,604 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:59,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-05 08:10:59,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-05 08:10:59,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:59,617 INFO L85 PathProgramCache]: Analyzing trace with hash -556323418, now seen corresponding path program 1 times [2024-12-05 08:10:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545522491] [2024-12-05 08:10:59,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:59,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:59,625 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:10:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:10:59,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:10:59,636 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:10:59,636 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-12-05 08:10:59,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-05 08:10:59,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-05 08:10:59,637 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:10:59,637 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (4/7) [2024-12-05 08:10:59,637 WARN L246 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:10:59,637 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-12-05 08:10:59,656 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-05 08:10:59,657 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:59,670 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:10:59,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread5of7ForFork0 ======== [2024-12-05 08:10:59,670 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:10:59,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:10:59,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:10:59,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:10:59,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1808836999, now seen corresponding path program 1 times [2024-12-05 08:10:59,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:10:59,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128145881] [2024-12-05 08:10:59,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:10:59,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:10:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:10:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:10:59,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:10:59,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128145881] [2024-12-05 08:10:59,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128145881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:10:59,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:10:59,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:10:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185682928] [2024-12-05 08:10:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:10:59,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:10:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:10:59,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:10:59,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:10:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:10:59,744 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:10:59,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-05 08:10:59,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:12:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:12:47,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:12:47,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-05 08:12:47,666 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:12:47,666 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread5of7ForFork0 was SAFE (1/8) [2024-12-05 08:12:47,667 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:12:47,668 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:12:47,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread6of7ForFork0 ======== [2024-12-05 08:12:47,668 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:12:47,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:12:47,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:12:47,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:12:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1027524547, now seen corresponding path program 1 times [2024-12-05 08:12:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:12:47,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994586276] [2024-12-05 08:12:47,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:12:47,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:12:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:12:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:12:47,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:12:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994586276] [2024-12-05 08:12:47,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994586276] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:12:47,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:12:47,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:12:47,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913080415] [2024-12-05 08:12:47,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:12:47,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:12:47,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:12:47,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:12:47,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:12:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:12:47,737 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:12:47,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-05 08:12:47,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:14:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:14:32,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-05 08:14:32,465 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:14:32,466 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread6of7ForFork0 was SAFE (2/8) [2024-12-05 08:14:32,466 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:14:32,467 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:14:32,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of7ForFork0 ======== [2024-12-05 08:14:32,467 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:14:32,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:14:32,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:14:32,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:14:32,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1371013040, now seen corresponding path program 1 times [2024-12-05 08:14:32,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:14:32,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123961285] [2024-12-05 08:14:32,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:14:32,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:14:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:14:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:14:32,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:14:32,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123961285] [2024-12-05 08:14:32,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123961285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:14:32,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:14:32,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:14:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860890158] [2024-12-05 08:14:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:14:32,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:14:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:14:32,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:14:32,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:14:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:14:32,538 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:14:32,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-05 08:14:32,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:16:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:16:17,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2024-12-05 08:16:17,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-05 08:16:17,532 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-05 08:16:17,532 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread4of7ForFork0 was SAFE (3/8) [2024-12-05 08:16:17,533 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:16:17,533 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:16:17,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of7ForFork0 ======== [2024-12-05 08:16:17,534 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=None, 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;@726c1acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:16:17,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:16:17,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-05 08:16:17,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:16:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash -98904, now seen corresponding path program 1 times [2024-12-05 08:16:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:16:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66585197] [2024-12-05 08:16:17,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:16:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:16:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:16:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:16:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:16:17,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66585197] [2024-12-05 08:16:17,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66585197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:16:17,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:16:17,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:16:17,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949855061] [2024-12-05 08:16:17,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:16:17,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:16:17,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:16:17,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:16:17,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:16:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:16:17,600 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:16:17,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-05 08:16:17,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.