./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:12:14,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:12:14,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-08 12:12:14,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:12:14,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:12:14,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:12:14,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:12:14,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:12:14,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:12:14,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:12:14,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:12:14,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:12:14,698 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:12:14,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:12:14,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:12:14,699 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:12:14,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:12:14,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:12:14,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:12:14,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:12:14,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:12:14,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:12:14,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:12:14,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:12:14,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:12:14,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:12:14,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:12:14,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:12:14,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:12:14,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:12:14,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:14,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:12:14,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:12:14,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:12:14,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:12:14,714 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-08 12:12:14,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:12:14,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:12:14,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:12:14,715 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:12:14,715 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:12:14,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 [2024-11-08 12:12:15,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:12:15,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:12:15,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:12:15,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:12:15,100 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:12:15,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/pthread/reorder_2.i Unable to find full path for "g++" [2024-11-08 12:12:17,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:12:17,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:12:17,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i [2024-11-08 12:12:17,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/11eb01d45/67113fc8c0e343fd8839a6a3ac05f253/FLAG16ffaa98d [2024-11-08 12:12:17,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/11eb01d45/67113fc8c0e343fd8839a6a3ac05f253 [2024-11-08 12:12:17,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:12:17,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:12:17,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:17,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:12:17,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:12:17,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:17" (1/1) ... [2024-11-08 12:12:17,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd92876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:17, skipping insertion in model container [2024-11-08 12:12:17,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:17" (1/1) ... [2024-11-08 12:12:17,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:12:18,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i[60219,60232] [2024-11-08 12:12:18,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:18,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:12:18,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i[60219,60232] [2024-11-08 12:12:18,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:18,421 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:12:18,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18 WrapperNode [2024-11-08 12:12:18,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:18,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:18,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:12:18,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:12:18,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,482 INFO L138 Inliner]: procedures = 372, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2024-11-08 12:12:18,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:18,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:12:18,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:12:18,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:12:18,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:12:18,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:12:18,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:12:18,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:12:18,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (1/1) ... [2024-11-08 12:12:18,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:18,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:18,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:12:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 12:12:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:12:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 12:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 12:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-08 12:12:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-08 12:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 12:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-08 12:12:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-08 12:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 12:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:12:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:12:18,604 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:12:18,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:12:18,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:12:18,995 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:12:18,995 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:12:19,198 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:12:19,198 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:12:19,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:19 BoogieIcfgContainer [2024-11-08 12:12:19,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:12:19,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:12:19,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:12:19,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:12:19,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:12:17" (1/3) ... [2024-11-08 12:12:19,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc5fbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:19, skipping insertion in model container [2024-11-08 12:12:19,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:18" (2/3) ... [2024-11-08 12:12:19,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc5fbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:19, skipping insertion in model container [2024-11-08 12:12:19,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:19" (3/3) ... [2024-11-08 12:12:19,212 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2024-11-08 12:12:19,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:12:19,231 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:12:19,232 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:12:19,278 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 12:12:19,335 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:19,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:12:19,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:19,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:19,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:12:19,367 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:12:19,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2024-11-08 12:12:19,386 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c6a0b5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:19,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:12:19,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:19,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash -5932946, now seen corresponding path program 1 times [2024-11-08 12:12:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:19,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412879027] [2024-11-08 12:12:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:20,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:12:20,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412879027] [2024-11-08 12:12:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412879027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:12:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734076579] [2024-11-08 12:12:20,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:20,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:12:20,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:12:20,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:12:20,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:12:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:20,361 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:20,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 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) [2024-11-08 12:12:20,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:20,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:12:20,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:20,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:20,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1155160171, now seen corresponding path program 1 times [2024-11-08 12:12:20,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390584973] [2024-11-08 12:12:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:20,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:12:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390584973] [2024-11-08 12:12:21,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390584973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:21,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:21,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 12:12:21,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326976486] [2024-11-08 12:12:21,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:21,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:12:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:12:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:12:21,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:12:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:21,007 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:21,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-08 12:12:21,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:21,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:12:21,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:12:21,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:21,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1805047062, now seen corresponding path program 1 times [2024-11-08 12:12:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:12:21,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876895563] [2024-11-08 12:12:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:12:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:21,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:12:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:21,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:12:21,478 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:12:21,480 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:12:21,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 12:12:21,491 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:12:21,493 INFO L317 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2024-11-08 12:12:21,544 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 12:12:21,544 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:12:21,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-11-08 12:12:21,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:12:21 BasicIcfg [2024-11-08 12:12:21,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:12:21,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:12:21,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:12:21,563 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:12:21,564 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:19" (3/4) ... [2024-11-08 12:12:21,566 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:12:21,567 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:12:21,568 INFO L158 Benchmark]: Toolchain (without parser) took 4121.65ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 116.3MB in the beginning and 114.5MB in the end (delta: 1.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-11-08 12:12:21,568 INFO L158 Benchmark]: CDTParser took 3.79ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:21,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 975.68ms. Allocated memory is still 146.8MB. Free memory was 115.7MB in the beginning and 73.1MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 12:12:21,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.86ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 70.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:12:21,570 INFO L158 Benchmark]: Boogie Preprocessor took 31.65ms. Allocated memory is still 146.8MB. Free memory was 70.3MB in the beginning and 68.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:12:21,570 INFO L158 Benchmark]: RCFGBuilder took 683.30ms. Allocated memory is still 146.8MB. Free memory was 68.9MB in the beginning and 82.8MB in the end (delta: -13.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 12:12:21,571 INFO L158 Benchmark]: TraceAbstraction took 2361.05ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 114.5MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:21,571 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 176.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:21,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.79ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 975.68ms. Allocated memory is still 146.8MB. Free memory was 115.7MB in the beginning and 73.1MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.86ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 70.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.65ms. Allocated memory is still 146.8MB. Free memory was 70.3MB in the beginning and 68.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 683.30ms. Allocated memory is still 146.8MB. Free memory was 68.9MB in the beginning and 82.8MB in the end (delta: -13.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2361.05ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 114.5MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 176.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 933, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 38, dependent conditional: 28, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 702, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 702, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 665, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 907, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 702, unknown conditional: 0, unknown unconditional: 702] , Statistics on independence cache: Total cache size (in pairs): 702, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 152, Maximal queried relation: 1, Independence queries for same thread: 27, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 80, Number of trivial persistent sets: 56, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 755, independent: 745, independent conditional: 0, independent unconditional: 745, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 933, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 38, dependent conditional: 28, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 702, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 702, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 665, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 907, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 702, unknown conditional: 0, unknown unconditional: 702] , Statistics on independence cache: Total cache size (in pairs): 702, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 152, Maximal queried relation: 1, Independence queries for same thread: 27 - UnprovableResult [Line: 1307]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1253. Possible FailurePath: [L1238] 0 static int iSet = 2; [L1239] 0 static int iCheck = 2; [L1240] 0 static int a = 0; [L1241] 0 static int b = 0; [L1247] 0 int i, err; [L1248] COND TRUE 0 argc != 1 [L1249] COND FALSE 0 !(argc != 3) [L1257] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1260] 0 pthread_t setPool[iSet]; [L1261] 0 pthread_t checkPool[iCheck]; [L1262] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:51}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=2, iSet=1, setPool={6:0}] [L1262] COND FALSE 0 !(i < iSet) VAL [\old(argc)=3, \old(argv)={50:51}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=2, iSet=1, setPool={6:0}] [L1262] COND TRUE 0 i < iSet [L1263] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=2, iSet=1, setPool={6:0}] [L1291] 1 a = 1 VAL [\old(param)={0:0}, a=1, b=0, iCheck=2, iSet=1, param={0:0}] [L1263] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) [L1263] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1262] 0 i++ VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={5:0}, err=0, i=1, iCheck=2, iSet=1, param={0:0}, setPool={6:0}] [L1262] COND TRUE 0 i < iSet VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={5:0}, err=0, i=1, iCheck=2, iSet=1, param={0:0}, setPool={6:0}] [L1268] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={5:0}, err=0, i=0, iCheck=2, iSet=1, param={0:0}, setPool={6:0}] [L1268] COND FALSE 0 !(i < iCheck) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={5:0}, err=0, i=0, iCheck=2, iSet=1, param={0:0}, setPool={6:0}] [L1268] COND TRUE 0 i < iCheck [L1269-L1270] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:51}, \old(param)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={5:0}, err=0, i=0, iCheck=2, iSet=1, param={0:0}, setPool={6:0}] [L1300] 2 int la = a; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=2, iSet=1, la=1, param={0:0}, param={0:0}] [L1303] 2 int lb = b; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=2, iSet=1, la=1, lb=0, param={0:0}, param={0:0}] [L1305] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1307] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=2, iSet=1, la=1, lb=0, param={0:0}, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: checkThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 50 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:12:21,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:12:24,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:12:24,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-08 12:12:24,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:12:24,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:12:24,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:12:24,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:12:24,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:12:24,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:12:24,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:12:24,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:12:24,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:12:24,300 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:12:24,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:12:24,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:12:24,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:12:24,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:12:24,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:12:24,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:12:24,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:12:24,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:12:24,307 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:12:24,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:12:24,308 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:12:24,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:12:24,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:12:24,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:12:24,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:12:24,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:12:24,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:12:24,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:12:24,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:24,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:12:24,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:12:24,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:12:24,313 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 12:12:24,314 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-08 12:12:24,314 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:12:24,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:12:24,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:12:24,315 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:12:24,316 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:12:24,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 [2024-11-08 12:12:24,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:12:24,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:12:24,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:12:24,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:12:24,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:12:24,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/pthread/reorder_2.i Unable to find full path for "g++" [2024-11-08 12:12:27,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:12:27,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:12:27,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i [2024-11-08 12:12:27,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/aac9a6cc4/1393e3136b7444018dd88bdd83afaf12/FLAG8e32f0f5f [2024-11-08 12:12:27,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/data/aac9a6cc4/1393e3136b7444018dd88bdd83afaf12 [2024-11-08 12:12:27,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:12:27,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:12:27,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:27,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:12:27,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:12:27,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:27" (1/1) ... [2024-11-08 12:12:27,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44959691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:27, skipping insertion in model container [2024-11-08 12:12:27,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:12:27" (1/1) ... [2024-11-08 12:12:27,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:12:28,383 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i[60219,60232] [2024-11-08 12:12:28,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:28,408 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:12:28,502 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/sv-benchmarks/c/pthread/reorder_2.i[60219,60232] [2024-11-08 12:12:28,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:12:28,621 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:12:28,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28 WrapperNode [2024-11-08 12:12:28,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:12:28,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:28,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:12:28,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:12:28,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,681 INFO L138 Inliner]: procedures = 375, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2024-11-08 12:12:28,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:12:28,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:12:28,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:12:28,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:12:28,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:12:28,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:12:28,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:12:28,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:12:28,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (1/1) ... [2024-11-08 12:12:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:12:28,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:28,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:28,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:12:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 12:12:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 12:12:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:12:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:12:28,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 12:12:28,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 12:12:28,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 12:12:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-08 12:12:28,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-08 12:12:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:12:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-08 12:12:28,849 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-08 12:12:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:12:28,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:12:28,851 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:12:29,021 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:12:29,023 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:12:29,333 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:12:29,334 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:12:29,585 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:12:29,586 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:12:29,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:29 BoogieIcfgContainer [2024-11-08 12:12:29,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:12:29,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:12:29,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:12:29,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:12:29,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:12:27" (1/3) ... [2024-11-08 12:12:29,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427be1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:29, skipping insertion in model container [2024-11-08 12:12:29,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:12:28" (2/3) ... [2024-11-08 12:12:29,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427be1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:12:29, skipping insertion in model container [2024-11-08 12:12:29,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:29" (3/3) ... [2024-11-08 12:12:29,600 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2024-11-08 12:12:29,622 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:12:29,622 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:12:29,622 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:12:29,694 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 12:12:29,770 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:29,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:12:29,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:29,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:12:29,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:12:29,811 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:12:29,832 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2024-11-08 12:12:29,838 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@589c0875, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:12:29,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:12:30,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:30,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2018856532, now seen corresponding path program 1 times [2024-11-08 12:12:30,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:12:30,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568641325] [2024-11-08 12:12:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:30,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:30,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:30,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:12:30,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 12:12:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:30,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 12:12:30,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:12:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:30,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:12:30,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:12:30,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568641325] [2024-11-08 12:12:30,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568641325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:30,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:30,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:12:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298475241] [2024-11-08 12:12:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:30,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:12:30,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:12:30,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:12:30,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:12:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:30,663 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:30,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 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) [2024-11-08 12:12:30,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:31,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 12:12:31,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:31,355 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:31,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1449075155, now seen corresponding path program 1 times [2024-11-08 12:12:31,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:12:31,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370660186] [2024-11-08 12:12:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:31,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:31,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:31,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:12:31,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 12:12:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:12:31,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 12:12:31,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:12:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:12:31,623 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:12:31,623 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:12:31,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370660186] [2024-11-08 12:12:31,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370660186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:12:31,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:12:31,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 12:12:31,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648722786] [2024-11-08 12:12:31,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:12:31,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:12:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:12:31,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:12:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:12:31,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:31,629 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:12:31,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-08 12:12:31,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:31,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:12:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:12:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:12:32,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 12:12:32,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:32,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:12:32,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:12:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 726193940, now seen corresponding path program 1 times [2024-11-08 12:12:32,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:12:32,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31787809] [2024-11-08 12:12:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:12:32,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:12:32,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:12:32,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 12:12:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:32,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:12:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:12:32,473 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 12:12:32,473 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:12:32,475 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:12:32,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 12:12:32,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:12:32,686 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:12:32,690 INFO L317 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2024-11-08 12:12:32,769 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 12:12:32,769 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:12:32,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-11-08 12:12:32,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:12:32 BasicIcfg [2024-11-08 12:12:32,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:12:32,798 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:12:32,798 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:12:32,798 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:12:32,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:12:29" (3/4) ... [2024-11-08 12:12:32,802 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:12:32,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:12:32,804 INFO L158 Benchmark]: Toolchain (without parser) took 5189.81ms. Allocated memory was 71.3MB in the beginning and 117.4MB in the end (delta: 46.1MB). Free memory was 45.0MB in the beginning and 81.3MB in the end (delta: -36.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,805 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:32,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.71ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 44.8MB in the beginning and 69.6MB in the end (delta: -24.8MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.68ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 66.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,807 INFO L158 Benchmark]: Boogie Preprocessor took 72.50ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 64.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,807 INFO L158 Benchmark]: RCFGBuilder took 830.06ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 53.0MB in the end (delta: 11.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,808 INFO L158 Benchmark]: TraceAbstraction took 3208.47ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 82.2MB in the end (delta: -30.2MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-11-08 12:12:32,811 INFO L158 Benchmark]: Witness Printer took 5.70ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 851.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:12:32,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.71ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 44.8MB in the beginning and 69.6MB in the end (delta: -24.8MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.68ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 66.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.50ms. Allocated memory is still 96.5MB. Free memory was 66.8MB in the beginning and 64.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 830.06ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 53.0MB in the end (delta: 11.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3208.47ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 82.2MB in the end (delta: -30.2MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 5.70ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 851.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 937, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 42, dependent conditional: 32, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 702, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 702, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 765, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 436, dependent conditional: 0, dependent unconditional: 436, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 907, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 702, unknown conditional: 0, unknown unconditional: 702] , Statistics on independence cache: Total cache size (in pairs): 702, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 152, Maximal queried relation: 1, Independence queries for same thread: 31, Persistent sets #1 benchmarks: Persistent set computation time: 0.8s, Number of persistent set computation: 80, Number of trivial persistent sets: 56, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 755, independent: 745, independent conditional: 0, independent unconditional: 745, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 937, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 42, dependent conditional: 32, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 906, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 150, independent unconditional: 745, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 907, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 702, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 702, independent: 686, independent conditional: 0, independent unconditional: 686, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 765, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 436, dependent conditional: 0, dependent unconditional: 436, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 907, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 702, unknown conditional: 0, unknown unconditional: 702] , Statistics on independence cache: Total cache size (in pairs): 702, Positive cache size: 692, Positive conditional cache size: 0, Positive unconditional cache size: 692, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 152, Maximal queried relation: 1, Independence queries for same thread: 31 - UnprovableResult [Line: 1307]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1253. Possible FailurePath: [L1238] 0 static int iSet = 2; [L1239] 0 static int iCheck = 2; [L1240] 0 static int a = 0; [L1241] 0 static int b = 0; [L1247] 0 int i, err; [L1248] COND TRUE 0 argc != 1 [L1249] COND FALSE 0 !(argc != 3) [L1257] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1260] 0 pthread_t setPool[iSet]; [L1261] 0 pthread_t checkPool[iCheck]; [L1262] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, checkPool={32769:0}, i=0, iCheck=1, iSet=1, setPool={32771:0}] [L1262] COND FALSE 0 !(i < iSet) VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, checkPool={32769:0}, i=0, iCheck=1, iSet=1, setPool={32771:0}] [L1262] COND TRUE 0 i < iSet [L1263] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, a=0, argc=3, b=0, checkPool={32769:0}, i=0, iCheck=1, iSet=1, setPool={32771:0}] [L1291] 1 a = 1 VAL [\old(param)={0:0}, a=1, b=0, iCheck=1, iSet=1, param={0:0}] [L1263] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) [L1263] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1262] 0 i++ VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={32769:0}, err=0, i=1, iCheck=1, iSet=1, param={0:0}, setPool={32771:0}] [L1262] COND TRUE 0 i < iSet VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={32769:0}, err=0, i=1, iCheck=1, iSet=1, param={0:0}, setPool={32771:0}] [L1268] 0 i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={32769:0}, err=0, i=0, iCheck=1, iSet=1, param={0:0}, setPool={32771:0}] [L1268] COND FALSE 0 !(i < iCheck) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={32769:0}, err=0, i=0, iCheck=1, iSet=1, param={0:0}, setPool={32771:0}] [L1268] COND TRUE 0 i < iCheck [L1269-L1270] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \old(argv)={0:0}, \old(param)={0:0}, \old(param)={0:0}, a=1, argc=3, b=0, checkPool={32769:0}, err=0, i=0, iCheck=1, iSet=1, param={0:0}, setPool={32771:0}] [L1300] 2 int la = a; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=1, iSet=1, la=1, param={0:0}, param={0:0}] [L1303] 2 int lb = b; VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=1, iSet=1, la=1, lb=0, param={0:0}, param={0:0}] [L1305] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1307] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, a=1, b=0, iCheck=1, iSet=1, la=1, lb=0, param={0:0}, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: checkThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 50 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 4 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:12:32,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e444dfc-8b69-48e7-8483-0aac19ffd7c8/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample