./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:21:47,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:21:47,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-08 12:21:47,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:21:47,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:21:47,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:21:47,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:21:47,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:21:47,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:21:47,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:21:47,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:21:47,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:21:47,329 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:21:47,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:21:47,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:21:47,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:21:47,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:21:47,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:21:47,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:21:47,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:21:47,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:21:47,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:21:47,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:21:47,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:21:47,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:21:47,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:21:47,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:21:47,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:21:47,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:21:47,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:21:47,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:21:47,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:21:47,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:21:47,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:21:47,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:21:47,340 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-08 12:21:47,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:21:47,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:21:47,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:21:47,341 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:21:47,342 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:21:47,344 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_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-11-08 12:21:47,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:21:47,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:21:47,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:21:47,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:21:47,623 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:21:47,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i Unable to find full path for "g++" [2024-11-08 12:21:49,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:21:50,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:21:50,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-08 12:21:50,030 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/data/cef7733a9/bb623a3ef4b24bb89282768301ad8fa9/FLAG55e9395b1 [2024-11-08 12:21:50,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/data/cef7733a9/bb623a3ef4b24bb89282768301ad8fa9 [2024-11-08 12:21:50,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:21:50,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:21:50,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:21:50,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:21:50,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:21:50,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:21:50" (1/1) ... [2024-11-08 12:21:50,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465d9ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:50, skipping insertion in model container [2024-11-08 12:21:50,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:21:50" (1/1) ... [2024-11-08 12:21:50,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:21:51,046 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2024-11-08 12:21:51,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:21:51,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:21:51,161 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2024-11-08 12:21:51,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:21:51,294 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:21:51,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51 WrapperNode [2024-11-08 12:21:51,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:21:51,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:21:51,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:21:51,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:21:51,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,391 INFO L138 Inliner]: procedures = 378, calls = 82, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 253 [2024-11-08 12:21:51,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:21:51,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:21:51,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:21:51,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:21:51,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:21:51,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:21:51,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:21:51,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:21:51,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (1/1) ... [2024-11-08 12:21:51,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:21:51,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:21:51,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:21:51,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:21:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 12:21:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 12:21:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 12:21:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 12:21:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:21:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 12:21:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 12:21:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 12:21:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 12:21:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:21:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:21:51,549 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:21:51,730 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:21:51,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:21:52,210 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:21:52,210 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:21:52,514 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:21:52,515 INFO L316 CfgBuilder]: Removed 21 assume(true) statements. [2024-11-08 12:21:52,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:21:52 BoogieIcfgContainer [2024-11-08 12:21:52,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:21:52,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:21:52,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:21:52,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:21:52,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:21:50" (1/3) ... [2024-11-08 12:21:52,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d806b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:21:52, skipping insertion in model container [2024-11-08 12:21:52,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:21:51" (2/3) ... [2024-11-08 12:21:52,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d806b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:21:52, skipping insertion in model container [2024-11-08 12:21:52,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:21:52" (3/3) ... [2024-11-08 12:21:52,525 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-11-08 12:21:52,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:21:52,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 12:21:52,555 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:21:52,630 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 12:21:52,700 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:21:52,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:21:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:21:52,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:21:52,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:21:52,755 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:21:52,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-11-08 12:21:52,781 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c9fa099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:21:52,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:21:57,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:21:57,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:21:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash -758273866, now seen corresponding path program 1 times [2024-11-08 12:21:57,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:21:57,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305554440] [2024-11-08 12:21:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:21:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:21:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:21:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 12:21:58,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:21:58,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305554440] [2024-11-08 12:21:58,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305554440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:21:58,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:21:58,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:21:58,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593363316] [2024-11-08 12:21:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:21:58,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:21:58,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:21:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:21:58,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:21:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:21:58,254 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:21:58,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:21:58,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:10,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:22:10,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:22:10,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -73725669, now seen corresponding path program 1 times [2024-11-08 12:22:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:22:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277383961] [2024-11-08 12:22:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:22:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:11,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:22:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277383961] [2024-11-08 12:22:11,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277383961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 12:22:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516316582] [2024-11-08 12:22:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:11,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:11,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:11,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:11,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 12:22:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:11,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 12:22:11,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:11,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:11,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516316582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:11,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 12:22:11,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-08 12:22:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913665230] [2024-11-08 12:22:11,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:11,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:22:11,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:22:11,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:22:11,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:22:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:11,447 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:11,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:22:11,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:11,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:22:11,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 12:22:12,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:12,154 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:22:12,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:12,155 INFO L85 PathProgramCache]: Analyzing trace with hash -166303104, now seen corresponding path program 1 times [2024-11-08 12:22:12,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:22:12,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480013935] [2024-11-08 12:22:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:12,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:22:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:22:12,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:22:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:22:12,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:22:12,448 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:22:12,451 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:22:12,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 12:22:12,459 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:22:12,461 INFO L317 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was UNSAFE (1/2) [2024-11-08 12:22:12,518 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 12:22:12,518 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:22:12,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-08 12:22:12,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:22:12 BasicIcfg [2024-11-08 12:22:12,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:22:12,562 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:22:12,562 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:22:12,563 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:22:12,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:21:52" (3/4) ... [2024-11-08 12:22:12,564 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 12:22:12,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/witness.graphml [2024-11-08 12:22:12,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:22:12,635 INFO L158 Benchmark]: Toolchain (without parser) took 22346.85ms. Allocated memory was 199.2MB in the beginning and 308.3MB in the end (delta: 109.1MB). Free memory was 153.6MB in the beginning and 123.3MB in the end (delta: 30.3MB). Peak memory consumption was 141.3MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,635 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:22:12,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1005.96ms. Allocated memory is still 199.2MB. Free memory was 153.5MB in the beginning and 108.7MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.79ms. Allocated memory is still 199.2MB. Free memory was 108.7MB in the beginning and 105.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,636 INFO L158 Benchmark]: Boogie Preprocessor took 62.46ms. Allocated memory is still 199.2MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,636 INFO L158 Benchmark]: RCFGBuilder took 1055.26ms. Allocated memory is still 199.2MB. Free memory was 102.5MB in the beginning and 115.5MB in the end (delta: -13.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,636 INFO L158 Benchmark]: TraceAbstraction took 20043.60ms. Allocated memory was 199.2MB in the beginning and 308.3MB in the end (delta: 109.1MB). Free memory was 115.5MB in the beginning and 129.1MB in the end (delta: -13.6MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,637 INFO L158 Benchmark]: Witness Printer took 72.11ms. Allocated memory is still 308.3MB. Free memory was 128.1MB in the beginning and 123.3MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:22:12,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1005.96ms. Allocated memory is still 199.2MB. Free memory was 153.5MB in the beginning and 108.7MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.79ms. Allocated memory is still 199.2MB. Free memory was 108.7MB in the beginning and 105.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.46ms. Allocated memory is still 199.2MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1055.26ms. Allocated memory is still 199.2MB. Free memory was 102.5MB in the beginning and 115.5MB in the end (delta: -13.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * TraceAbstraction took 20043.60ms. Allocated memory was 199.2MB in the beginning and 308.3MB in the end (delta: 109.1MB). Free memory was 115.5MB in the beginning and 129.1MB in the end (delta: -13.6MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 72.11ms. Allocated memory is still 308.3MB. Free memory was 128.1MB in the beginning and 123.3MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8979, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 482, dependent conditional: 376, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8660, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 163, dependent conditional: 57, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8660, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 163, dependent conditional: 57, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 220, dependent conditional: 114, dependent unconditional: 106, unknown: 7, unknown conditional: 4, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 0, independent unconditional: 8492, dependent: 220, dependent conditional: 2, dependent unconditional: 218, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 0, independent unconditional: 8492, dependent: 220, dependent conditional: 2, dependent unconditional: 218, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4104, independent: 3993, independent conditional: 0, independent unconditional: 3993, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4104, independent: 3925, independent conditional: 0, independent unconditional: 3925, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 179, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17612, independent: 2555, independent conditional: 0, independent unconditional: 2555, dependent: 10319, dependent conditional: 372, dependent unconditional: 9948, unknown: 4738, unknown conditional: 0, unknown unconditional: 4738] , Protected Queries: 0 ], Cache Queries: [ total: 8719, independent: 4499, independent conditional: 0, independent unconditional: 4499, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 4108, unknown conditional: 2, unknown unconditional: 4106] , Statistics on independence cache: Total cache size (in pairs): 4101, Positive cache size: 3993, Positive conditional cache size: 0, Positive unconditional cache size: 3993, Negative cache size: 108, Negative conditional cache size: 2, Negative unconditional cache size: 106, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 1220, Maximal queried relation: 1, Independence queries for same thread: 319, Persistent sets #1 benchmarks: Persistent set computation time: 17.4s, Number of persistent set computation: 710, Number of trivial persistent sets: 603, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7497, independent: 7388, independent conditional: 0, independent unconditional: 7388, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8979, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 482, dependent conditional: 376, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8660, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 163, dependent conditional: 57, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8660, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 163, dependent conditional: 57, dependent unconditional: 106, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 1104, independent unconditional: 7388, dependent: 220, dependent conditional: 114, dependent unconditional: 106, unknown: 7, unknown conditional: 4, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 0, independent unconditional: 8492, dependent: 220, dependent conditional: 2, dependent unconditional: 218, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8719, independent: 8492, independent conditional: 0, independent unconditional: 8492, dependent: 220, dependent conditional: 2, dependent unconditional: 218, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4104, independent: 3993, independent conditional: 0, independent unconditional: 3993, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4104, independent: 3925, independent conditional: 0, independent unconditional: 3925, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 179, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 108, dependent conditional: 2, dependent unconditional: 106, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17612, independent: 2555, independent conditional: 0, independent unconditional: 2555, dependent: 10319, dependent conditional: 372, dependent unconditional: 9948, unknown: 4738, unknown conditional: 0, unknown unconditional: 4738] , Protected Queries: 0 ], Cache Queries: [ total: 8719, independent: 4499, independent conditional: 0, independent unconditional: 4499, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 4108, unknown conditional: 2, unknown unconditional: 4106] , Statistics on independence cache: Total cache size (in pairs): 4101, Positive cache size: 3993, Positive conditional cache size: 0, Positive unconditional cache size: 3993, Negative cache size: 108, Negative conditional cache size: 2, Negative unconditional cache size: 106, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3, Eliminated conditions: 1220, Maximal queried relation: 1, Independence queries for same thread: 319 - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1267] 0 struct s *p; [L1268] 0 A = malloc(sizeof(struct s)) [L1269] EXPR 0 \read(*A) [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x [L1247] 0 p -> next = ((void *)0) [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; [L1270] 0 int i=0; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={14:0}] [L1270] COND FALSE 0 !(i<10000) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={14:0}] [L1270] COND TRUE 0 i<10000 [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={14:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x [L1247] 1 p -> next = ((void *)0) [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) [L1250] 1 p->next = *list [L1251] 1 *list = p [L1259] RET 1 insert(p, &A) [L1270] 0 i++ VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=1, t_ids={14:0}] [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) [L1270] COND FALSE 0 !(i<10000) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=1, t_ids={14:0}] [L1270] COND TRUE 0 i<10000 [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=1, t_ids={14:0}] [L1262] EXPR 1 p->datum [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(cond)=0, __global_lock={3:0}, cond=0] [L1235] 1 reach_error() VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(cond)=0, __global_lock={3:0}, cond=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t_funThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 116 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 18.2s, 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: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 9/12 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 proved your program to be incorrect! [2024-11-08 12:22:12,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ba491f6-dd90-4199-aa64-7b64faf6d303/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE