./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 e7bb482b 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i --witnessprinter.witness.filename witness.graphml --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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:06,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:06,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-06 14:08:06,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:06,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:06,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:06,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:06,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:06,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:06,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:06,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:06,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:06,511 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:06,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:06,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 14:08:06,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:06,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 14:08:06,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:06,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:06,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 14:08:06,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:06,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 14:08:06,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:06,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 14:08:06,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:06,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:06,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:06,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:06,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:06,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:06,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:06,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 14:08:06,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 14:08:06,524 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-06 14:08:06,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 14:08:06,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:06,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:06,525 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 14:08:06,525 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:06,526 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:06,526 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2023-11-06 14:08:06,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:06,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:06,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:06,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:06,905 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:06,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 14:08:10,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:10,420 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:10,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 14:08:10,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/6bf3253f1/cdb4c8aa7b234efb9f481ba740f1e69b/FLAGcad0f8293 [2023-11-06 14:08:10,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/6bf3253f1/cdb4c8aa7b234efb9f481ba740f1e69b [2023-11-06 14:08:10,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:10,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:10,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:10,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:10,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:10,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:10" (1/1) ... [2023-11-06 14:08:10,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e25170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:10, skipping insertion in model container [2023-11-06 14:08:10,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:10" (1/1) ... [2023-11-06 14:08:10,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:11,264 WARN L240 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-06 14:08:11,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:11,278 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 14:08:11,342 WARN L240 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-06 14:08:11,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:11,443 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:11,452 INFO L206 MainTranslator]: Completed translation [2023-11-06 14:08:11,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11 WrapperNode [2023-11-06 14:08:11,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:11,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:11,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 14:08:11,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 14:08:11,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,526 INFO L138 Inliner]: procedures = 372, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 165 [2023-11-06 14:08:11,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:11,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 14:08:11,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 14:08:11,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 14:08:11,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 14:08:11,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 14:08:11,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 14:08:11,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 14:08:11,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (1/1) ... [2023-11-06 14:08:11,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:11,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:11,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:11,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 14:08:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-06 14:08:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 14:08:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 14:08:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 14:08:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 14:08:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-06 14:08:11,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-06 14:08:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 14:08:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 14:08:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-06 14:08:11,688 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-06 14:08:11,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 14:08:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 14:08:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 14:08:11,691 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 14:08:11,892 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 14:08:11,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 14:08:12,309 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 14:08:12,320 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 14:08:12,320 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 14:08:12,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:12 BoogieIcfgContainer [2023-11-06 14:08:12,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 14:08:12,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 14:08:12,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 14:08:12,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 14:08:12,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:08:10" (1/3) ... [2023-11-06 14:08:12,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c55d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:12, skipping insertion in model container [2023-11-06 14:08:12,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:11" (2/3) ... [2023-11-06 14:08:12,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c55d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:12, skipping insertion in model container [2023-11-06 14:08:12,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:12" (3/3) ... [2023-11-06 14:08:12,337 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2023-11-06 14:08:12,348 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 14:08:12,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 14:08:12,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 14:08:12,361 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 14:08:12,483 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 14:08:12,549 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:12,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:12,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:12,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:12,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-06 14:08:12,663 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:12,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2023-11-06 14:08:12,692 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@61e192d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:12,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 14:08:12,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:12,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:12,840 INFO L85 PathProgramCache]: Analyzing trace with hash 139305782, now seen corresponding path program 1 times [2023-11-06 14:08:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103586467] [2023-11-06 14:08:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:13,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:13,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103586467] [2023-11-06 14:08:13,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103586467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:13,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:13,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:13,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808432331] [2023-11-06 14:08:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:13,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:13,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:13,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:13,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:13,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-06 14:08:13,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 14:08:13,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:13,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 193801340, now seen corresponding path program 1 times [2023-11-06 14:08:13,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423646230] [2023-11-06 14:08:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:13,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:13,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423646230] [2023-11-06 14:08:13,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423646230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:13,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:13,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 14:08:13,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972409037] [2023-11-06 14:08:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:13,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 14:08:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:13,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 14:08:13,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 14:08:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,537 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:13,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-11-06 14:08:13,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:13,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 14:08:13,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:13,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash -919178298, now seen corresponding path program 1 times [2023-11-06 14:08:13,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:13,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571680063] [2023-11-06 14:08:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:13,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:13,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:13,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571680063] [2023-11-06 14:08:13,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571680063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:13,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:13,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:13,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160398685] [2023-11-06 14:08:13,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:13,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:13,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:13,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:13,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:13,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2023-11-06 14:08:13,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:13,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:13,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 14:08:13,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:13,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -468878290, now seen corresponding path program 1 times [2023-11-06 14:08:13,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:13,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80017918] [2023-11-06 14:08:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:13,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:14,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 14:08:14,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80017918] [2023-11-06 14:08:14,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80017918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:14,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:14,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:14,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224942226] [2023-11-06 14:08:14,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:14,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:14,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 14:08:14,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:14,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:14,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:14,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2023-11-06 14:08:14,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:14,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:14,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:14,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:14,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 14:08:14,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:14,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:14,358 INFO L85 PathProgramCache]: Analyzing trace with hash 547448226, now seen corresponding path program 1 times [2023-11-06 14:08:14,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 14:08:14,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080754398] [2023-11-06 14:08:14,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:14,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 14:08:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:14,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 14:08:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:14,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 14:08:14,636 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 14:08:14,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 14:08:14,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 14:08:14,654 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 14:08:14,656 INFO L307 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2023-11-06 14:08:14,660 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 14:08:14,660 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 14:08:14,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 02:08:14 BasicIcfg [2023-11-06 14:08:14,809 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 14:08:14,810 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 14:08:14,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 14:08:14,810 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 14:08:14,811 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:12" (3/4) ... [2023-11-06 14:08:14,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 14:08:14,815 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 14:08:14,819 INFO L158 Benchmark]: Toolchain (without parser) took 4328.26ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 66.5MB in the beginning and 123.6MB in the end (delta: -57.1MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,825 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 83.4MB in the beginning and 83.4MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 14:08:14,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 964.22ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 66.5MB in the beginning and 86.9MB in the end (delta: -20.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.02ms. Allocated memory is still 140.5MB. Free memory was 86.9MB in the beginning and 83.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,829 INFO L158 Benchmark]: Boogie Preprocessor took 46.66ms. Allocated memory is still 140.5MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,829 INFO L158 Benchmark]: RCFGBuilder took 749.88ms. Allocated memory is still 140.5MB. Free memory was 81.4MB in the beginning and 62.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,830 INFO L158 Benchmark]: TraceAbstraction took 2483.04ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.7MB in the beginning and 124.6MB in the end (delta: -62.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-06 14:08:14,830 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 169.9MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 14:08:14,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 83.4MB in the beginning and 83.4MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 964.22ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 66.5MB in the beginning and 86.9MB in the end (delta: -20.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.02ms. Allocated memory is still 140.5MB. Free memory was 86.9MB in the beginning and 83.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.66ms. Allocated memory is still 140.5MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 749.88ms. Allocated memory is still 140.5MB. Free memory was 81.4MB in the beginning and 62.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2483.04ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.7MB in the beginning and 124.6MB in the end (delta: -62.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 169.9MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2617, independent: 2535, independent conditional: 194, independent unconditional: 2341, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2546, independent: 2535, independent conditional: 194, independent unconditional: 2341, 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: 2546, independent: 2535, independent conditional: 194, independent unconditional: 2341, 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: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2167, independent: 2155, independent conditional: 1, independent unconditional: 2154, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2167, independent: 2150, independent conditional: 0, independent unconditional: 2150, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, independent: 47, independent conditional: 7, independent unconditional: 39, dependent: 52, dependent conditional: 7, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2548, independent: 380, independent conditional: 0, independent unconditional: 380, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2167, unknown conditional: 2, unknown unconditional: 2165] , Statistics on independence cache: Total cache size (in pairs): 2167, Positive cache size: 2155, Positive conditional cache size: 1, Positive unconditional cache size: 2154, Negative cache size: 12, Negative conditional cache size: 1, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 71 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 266, Number of trivial persistent sets: 238, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2351, independent: 2341, independent conditional: 0, independent unconditional: 2341, 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: 2617, independent: 2535, independent conditional: 194, independent unconditional: 2341, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2546, independent: 2535, independent conditional: 194, independent unconditional: 2341, 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: 2546, independent: 2535, independent conditional: 194, independent unconditional: 2341, 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: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2548, independent: 2535, independent conditional: 1, independent unconditional: 2534, dependent: 13, dependent conditional: 1, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2167, independent: 2155, independent conditional: 1, independent unconditional: 2154, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2167, independent: 2150, independent conditional: 0, independent unconditional: 2150, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, independent: 47, independent conditional: 7, independent unconditional: 39, dependent: 52, dependent conditional: 7, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2548, independent: 380, independent conditional: 0, independent unconditional: 380, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2167, unknown conditional: 2, unknown unconditional: 2165] , Statistics on independence cache: Total cache size (in pairs): 2167, Positive cache size: 2155, Positive conditional cache size: 1, Positive unconditional cache size: 2154, Negative cache size: 12, Negative conditional cache size: 1, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 71 - UnprovableResult [Line: 1295]: 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 1252. Possible FailurePath: [L1236] 0 static int iSet = 2; VAL [iSet={9:0}] [L1237] 0 static int iCheck = 2; VAL [iCheck={10:0}, iSet={9:0}] [L1238] 0 static int a = 0; VAL [a=0, iCheck={10:0}, iSet={9:0}] [L1239] 0 static int b = 0; VAL [a=0, b=0, iCheck={10:0}, iSet={9:0}] [L1245] 0 int i, err; VAL [\old(argc)=3, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}] [L1246] COND TRUE 0 argc != 1 VAL [\old(argc)=3, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}] [L1247] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}] [L1251] 0 argv[1] VAL [\old(argc)=3, a=0, argc=3, argv={9:-10}, argv={9:-10}, argv[1]={62:61}, b=0, iCheck={10:0}, iSet={9:0}] [L1252] 0 argv[2] VAL [\old(argc)=3, a=0, argc=3, argv={9:-10}, argv={9:-10}, argv[2]={54:63}, b=0, iCheck={10:0}, iSet={9:0}] [L1255] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}] [L1255] 0 iSet > 100000 || iCheck > 100000 VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] 0 iSet > 100000 || iCheck > 100000 VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1258] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}] [L1258] 0 pthread_t setPool[iSet]; VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1259] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1259] 0 pthread_t checkPool[iCheck]; VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1260] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1260] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1260] COND TRUE 0 i < iSet VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={14:0}] [L1261] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=0, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=17, setPool={14:0}] [L1288] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}] [L1261] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=17, setPool={14:0}] [L1261] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=17, setPool={14:0}] [L1260] 0 i++ VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1260] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1260] COND FALSE 0 !(i < iSet) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1266] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1266] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=13, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1266] COND TRUE 0 i < iCheck VAL [\old(argc)=3, \read(iCheck)=13, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1267-L1268] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=13, \read(iSet)=1, a=1, argc=3, argv={9:-10}, argv={9:-10}, b=0, checkPool={16:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=18, setPool={14:0}] [L1293] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] [L1295] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, 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, 190 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, 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: 13, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 390 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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 [2023-11-06 14:08:14,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:15,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/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 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i --witnessprinter.witness.filename witness.graphml --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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:17,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:17,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2023-11-06 14:08:17,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:17,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:17,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:17,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:17,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:17,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:17,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:17,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:17,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:17,933 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:17,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:17,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 14:08:17,936 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:17,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:17,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:17,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 14:08:17,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:17,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 14:08:17,939 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 14:08:17,940 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 14:08:17,940 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:17,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 14:08:17,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:17,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:17,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:17,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:17,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:17,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:17,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:17,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 14:08:17,946 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 14:08:17,946 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-06 14:08:17,947 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 14:08:17,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:17,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:17,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 14:08:17,949 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:17,949 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:17,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 14:08:17,949 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2023-11-06 14:08:18,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:18,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:18,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:18,388 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:18,388 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:18,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 14:08:21,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:22,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:22,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 14:08:22,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/6641f727f/3bc5f7058c3841e3947bf5d37c6a53b5/FLAGe25bc33e0 [2023-11-06 14:08:22,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/data/6641f727f/3bc5f7058c3841e3947bf5d37c6a53b5 [2023-11-06 14:08:22,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:22,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:22,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:22,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:22,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:22,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d80bc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:22, skipping insertion in model container [2023-11-06 14:08:22,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:22" (1/1) ... [2023-11-06 14:08:22,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:23,226 WARN L240 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-06 14:08:23,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:23,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 14:08:23,329 WARN L240 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_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/sv-benchmarks/c/pthread/reorder_2.i[59859,59872] [2023-11-06 14:08:23,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:23,445 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:23,453 INFO L206 MainTranslator]: Completed translation [2023-11-06 14:08:23,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23 WrapperNode [2023-11-06 14:08:23,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:23,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:23,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 14:08:23,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 14:08:23,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,546 INFO L138 Inliner]: procedures = 376, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 159 [2023-11-06 14:08:23,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:23,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 14:08:23,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 14:08:23,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 14:08:23,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 14:08:23,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 14:08:23,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 14:08:23,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 14:08:23,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (1/1) ... [2023-11-06 14:08:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:23,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:23,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:23,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 14:08:23,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 14:08:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-06 14:08:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 14:08:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 14:08:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 14:08:23,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 14:08:23,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 14:08:23,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 14:08:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-06 14:08:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-06 14:08:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 14:08:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-06 14:08:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-06 14:08:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 14:08:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 14:08:23,718 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 14:08:23,901 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 14:08:23,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 14:08:24,269 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 14:08:24,279 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 14:08:24,279 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 14:08:24,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:24 BoogieIcfgContainer [2023-11-06 14:08:24,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 14:08:24,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 14:08:24,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 14:08:24,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 14:08:24,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:08:22" (1/3) ... [2023-11-06 14:08:24,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46826452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:24, skipping insertion in model container [2023-11-06 14:08:24,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:23" (2/3) ... [2023-11-06 14:08:24,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46826452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:24, skipping insertion in model container [2023-11-06 14:08:24,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:24" (3/3) ... [2023-11-06 14:08:24,293 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2023-11-06 14:08:24,303 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 14:08:24,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 14:08:24,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 14:08:24,336 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 14:08:24,411 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 14:08:24,466 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:24,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:24,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-06 14:08:24,541 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:24,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2023-11-06 14:08:24,563 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5051d2c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:24,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 14:08:24,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:24,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:24,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1097820943, now seen corresponding path program 1 times [2023-11-06 14:08:24,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:24,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236800338] [2023-11-06 14:08:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:24,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:24,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:24,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 14:08:24,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 14:08:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:24,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 14:08:24,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:25,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:25,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236800338] [2023-11-06 14:08:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236800338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:25,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:25,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943863190] [2023-11-06 14:08:25,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:25,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:25,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:25,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:25,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2023-11-06 14:08:25,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:25,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:25,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:25,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:25,349 INFO L85 PathProgramCache]: Analyzing trace with hash -485556574, now seen corresponding path program 1 times [2023-11-06 14:08:25,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:25,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434534201] [2023-11-06 14:08:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:25,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:25,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 14:08:25,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 14:08:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:25,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 14:08:25,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:25,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:25,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:25,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434534201] [2023-11-06 14:08:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434534201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:25,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 14:08:25,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110904288] [2023-11-06 14:08:25,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:25,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 14:08:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:25,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 14:08:25,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 14:08:25,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,578 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:25,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-11-06 14:08:25,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:25,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:25,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:25,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:25,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash 534244567, now seen corresponding path program 1 times [2023-11-06 14:08:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486965932] [2023-11-06 14:08:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:25,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:25,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:25,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 14:08:25,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 14:08:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:26,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 14:08:26,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:26,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:26,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:26,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486965932] [2023-11-06 14:08:26,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486965932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:26,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:26,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465908325] [2023-11-06 14:08:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:26,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:26,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2023-11-06 14:08:26,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:26,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:26,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:26,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:26,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:26,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:26,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1187954829, now seen corresponding path program 1 times [2023-11-06 14:08:26,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:26,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557783474] [2023-11-06 14:08:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:26,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:26,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:26,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 14:08:26,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 14:08:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:26,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 14:08:26,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:27,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:27,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:27,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557783474] [2023-11-06 14:08:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557783474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 14:08:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670982331] [2023-11-06 14:08:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:27,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 14:08:27,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 14:08:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 14:08:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,137 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:27,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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) [2023-11-06 14:08:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:27,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:27,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:27,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 14:08:27,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2116039563, now seen corresponding path program 1 times [2023-11-06 14:08:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:27,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292079460] [2023-11-06 14:08:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:27,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:27,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:27,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 14:08:27,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 14:08:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:27,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 14:08:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 14:08:27,993 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 14:08:27,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 14:08:27,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 14:08:28,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:28,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:28,212 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 14:08:28,213 INFO L307 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was UNSAFE (1/2) [2023-11-06 14:08:28,217 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 14:08:28,217 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 14:08:28,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 02:08:28 BasicIcfg [2023-11-06 14:08:28,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 14:08:28,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 14:08:28,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 14:08:28,317 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 14:08:28,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:24" (3/4) ... [2023-11-06 14:08:28,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 14:08:28,321 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 14:08:28,322 INFO L158 Benchmark]: Toolchain (without parser) took 6165.18ms. Allocated memory was 79.7MB in the beginning and 136.3MB in the end (delta: 56.6MB). Free memory was 53.3MB in the beginning and 55.0MB in the end (delta: -1.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,322 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 14:08:28,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1297.15ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 53.0MB in the beginning and 85.3MB in the end (delta: -32.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.07ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 82.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,324 INFO L158 Benchmark]: Boogie Preprocessor took 64.52ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,324 INFO L158 Benchmark]: RCFGBuilder took 668.29ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 59.1MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,325 INFO L158 Benchmark]: TraceAbstraction took 4030.37ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 58.6MB in the beginning and 55.0MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-11-06 14:08:28,325 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 136.3MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 14:08:28,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1297.15ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 53.0MB in the beginning and 85.3MB in the end (delta: -32.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.07ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 82.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.52ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 80.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.29ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 59.1MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4030.37ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 58.6MB in the beginning and 55.0MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 136.3MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2467, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 81, dependent conditional: 72, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2396, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2396, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2034, independent: 2023, independent conditional: 1, independent unconditional: 2022, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2034, independent: 2018, independent conditional: 0, independent unconditional: 2018, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, independent: 64, independent conditional: 4, independent unconditional: 60, dependent: 50, dependent conditional: 7, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2398, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2034, unknown conditional: 2, unknown unconditional: 2032] , Statistics on independence cache: Total cache size (in pairs): 2034, Positive cache size: 2023, Positive conditional cache size: 1, Positive unconditional cache size: 2022, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 71 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 255, Number of trivial persistent sets: 227, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2211, independent: 2202, independent conditional: 0, independent unconditional: 2202, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2467, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 81, dependent conditional: 72, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2396, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2396, independent: 2386, independent conditional: 184, independent unconditional: 2202, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2398, independent: 2386, independent conditional: 1, independent unconditional: 2385, dependent: 12, dependent conditional: 1, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2034, independent: 2023, independent conditional: 1, independent unconditional: 2022, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2034, independent: 2018, independent conditional: 0, independent unconditional: 2018, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, independent: 64, independent conditional: 4, independent unconditional: 60, dependent: 50, dependent conditional: 7, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2398, independent: 363, independent conditional: 0, independent unconditional: 363, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 2034, unknown conditional: 2, unknown unconditional: 2032] , Statistics on independence cache: Total cache size (in pairs): 2034, Positive cache size: 2023, Positive conditional cache size: 1, Positive unconditional cache size: 2022, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 71 - UnprovableResult [Line: 1295]: 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 1252. Possible FailurePath: [L1236] 0 static int iSet = 2; VAL [iSet={9:0}] [L1237] 0 static int iCheck = 2; VAL [iCheck={10:0}, iSet={9:0}] [L1238] 0 static int a = 0; VAL [a=0, iCheck={10:0}, iSet={9:0}] [L1239] 0 static int b = 0; VAL [a=0, b=0, iCheck={10:0}, iSet={9:0}] [L1245] 0 int i, err; VAL [\old(argc)=3, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1246] COND TRUE 0 argc != 1 VAL [\old(argc)=3, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1247] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1251] 0 argv[1] VAL [\old(argc)=3, a=0, argc=3, argv={0:0}, argv={0:0}, argv[1]={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1252] 0 argv[2] VAL [\old(argc)=3, a=0, argc=3, argv={0:0}, argv={0:0}, argv[2]={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1255] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1255] 0 iSet > 100000 || iCheck > 100000 VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] 0 iSet > 100000 || iCheck > 100000 VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1255] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet > 100000 || iCheck > 100000=0, iSet={9:0}] [L1258] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}] [L1258] 0 pthread_t setPool[iSet]; VAL [\old(argc)=3, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1259] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1259] 0 pthread_t checkPool[iCheck]; VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1260] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1260] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1260] COND TRUE 0 i < iSet VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={15:0}] [L1261] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=0, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=16384, setPool={15:0}] [L1288] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}] [L1261] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=16384, setPool={15:0}] [L1261] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=16384, setPool={15:0}] [L1260] 0 i++ VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1260] EXPR 0 \read(iSet) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1260] COND FALSE 0 !(i < iSet) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1266] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1266] EXPR 0 \read(iCheck) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1266] COND TRUE 0 i < iCheck VAL [\old(argc)=3, \read(iCheck)=65536, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, setPool={15:0}] [L1267-L1268] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=65536, \read(iSet)=1, a=1, argc=3, argv={0:0}, argv={0:0}, b=0, checkPool={23:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=16385, setPool={15:0}] [L1293] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] [L1295] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, 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, 182 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, 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: 13, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 381 NumberOfCodeBlocks, 381 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 537 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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 [2023-11-06 14:08:28,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:28,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c006c3c-a2d8-4f9c-9828-6b3a2499c354/bin/ugemcutter-verify-t8buoWUS1i/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