./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 9bd2c7ff 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_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/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_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW --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 0.2.3-dev-9bd2c7f [2023-11-17 22:46:37,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:46:37,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-17 22:46:37,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:46:37,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:46:37,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:46:37,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:46:37,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:46:37,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:46:37,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:46:37,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:46:37,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:46:37,839 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:46:37,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:46:37,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:46:37,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:46:37,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:46:37,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:46:37,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:46:37,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:46:37,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:46:37,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:46:37,844 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:46:37,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:46:37,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:46:37,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:46:37,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:46:37,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:46:37,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:37,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:46:37,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:46:37,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:46:37,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:46:37,849 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:46:37,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:46:37,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:46:37,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:46:37,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:46:37,850 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:46:37,850 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:46:37,851 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_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2023-11-17 22:46:38,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:46:38,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:46:38,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:46:38,149 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:46:38,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:46:38,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-17 22:46:41,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:46:41,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:46:41,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-17 22:46:41,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/data/bac1cf416/2aa5c9cc3c4b4782898de865f204a700/FLAGb2c31e9b0 [2023-11-17 22:46:41,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/data/bac1cf416/2aa5c9cc3c4b4782898de865f204a700 [2023-11-17 22:46:41,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:46:41,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:46:41,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:41,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:46:41,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:46:41,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:41" (1/1) ... [2023-11-17 22:46:41,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7815292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:41, skipping insertion in model container [2023-11-17 22:46:41,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:41" (1/1) ... [2023-11-17 22:46:41,783 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:46:42,625 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_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-11-17 22:46:42,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:42,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:46:42,756 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_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-11-17 22:46:42,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:42,910 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:46:42,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42 WrapperNode [2023-11-17 22:46:42,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:42,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:42,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:46:42,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:46:42,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:42,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,010 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 239 [2023-11-17 22:46:43,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:43,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:46:43,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:46:43,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:46:43,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:46:43,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:46:43,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:46:43,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:46:43,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (1/1) ... [2023-11-17 22:46:43,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:43,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:43,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:43,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:46:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:46:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 22:46:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:46:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:46:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 22:46:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 22:46:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 22:46:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:46:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:46:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:46:43,202 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:46:43,424 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:46:43,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:46:43,890 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:46:43,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:46:43,907 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-17 22:46:43,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:43 BoogieIcfgContainer [2023-11-17 22:46:43,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:46:43,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:46:43,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:46:43,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:46:43,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:46:41" (1/3) ... [2023-11-17 22:46:43,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e0c279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:43, skipping insertion in model container [2023-11-17 22:46:43,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:42" (2/3) ... [2023-11-17 22:46:43,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e0c279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:43, skipping insertion in model container [2023-11-17 22:46:43,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:43" (3/3) ... [2023-11-17 22:46:43,928 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-11-17 22:46:43,938 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:46:43,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:46:43,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 22:46:43,952 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:46:44,048 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 22:46:44,102 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:44,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:46:44,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:44,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:44,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:46:44,175 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:46:44,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2023-11-17 22:46:44,211 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=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;@74360936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:44,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-17 22:46:48,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 22:46:48,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:48,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1045360478, now seen corresponding path program 1 times [2023-11-17 22:46:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188021658] [2023-11-17 22:46:48,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-17 22:46:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188021658] [2023-11-17 22:46:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188021658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:49,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:49,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:46:49,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101094509] [2023-11-17 22:46:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:49,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:46:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:46:49,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:46:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:49,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:49,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 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) [2023-11-17 22:46:49,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:20,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:47:20,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 22:47:20,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash -278122828, now seen corresponding path program 1 times [2023-11-17 22:47:20,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:20,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62059579] [2023-11-17 22:47:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:47:20,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 22:47:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:47:20,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 22:47:20,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 22:47:20,497 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-17 22:47:20,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:47:20,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-17 22:47:20,511 INFO L307 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was UNSAFE (1/2) [2023-11-17 22:47:20,515 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 22:47:20,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 22:47:20,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc44 [2023-11-17 22:47:20,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem45 [2023-11-17 22:47:20,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated [2023-11-17 22:47:20,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-17 22:47:20,618 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem31 [2023-11-17 22:47:20,619 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem31 [2023-11-17 22:47:20,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-17 22:47:20,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated [2023-11-17 22:47:20,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-17 22:47:20,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 10:47:20 BasicIcfg [2023-11-17 22:47:20,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 22:47:20,643 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-17 22:47:20,643 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-17 22:47:20,643 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-17 22:47:20,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:43" (3/4) ... [2023-11-17 22:47:20,644 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-17 22:47:20,706 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc44 [2023-11-17 22:47:20,707 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem45 [2023-11-17 22:47:20,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated [2023-11-17 22:47:20,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-17 22:47:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem31 [2023-11-17 22:47:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem31 [2023-11-17 22:47:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-17 22:47:20,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated [2023-11-17 22:47:20,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-17 22:47:20,779 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/witness.graphml [2023-11-17 22:47:20,780 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-17 22:47:20,781 INFO L158 Benchmark]: Toolchain (without parser) took 39112.57ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 128.0MB in the beginning and 88.2MB in the end (delta: 39.9MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,781 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 178.3MB. Free memory was 144.1MB in the beginning and 144.1MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-17 22:47:20,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1241.36ms. Allocated memory is still 178.3MB. Free memory was 128.0MB in the beginning and 87.3MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.38ms. Allocated memory is still 178.3MB. Free memory was 87.3MB in the beginning and 144.8MB in the end (delta: -57.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,783 INFO L158 Benchmark]: Boogie Preprocessor took 104.37ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 144.8MB in the beginning and 204.6MB in the end (delta: -59.8MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,783 INFO L158 Benchmark]: RCFGBuilder took 788.80ms. Allocated memory is still 237.0MB. Free memory was 204.6MB in the beginning and 178.4MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,784 INFO L158 Benchmark]: TraceAbstraction took 36722.75ms. Allocated memory is still 237.0MB. Free memory was 178.4MB in the beginning and 102.8MB in the end (delta: 75.6MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,785 INFO L158 Benchmark]: Witness Printer took 137.28ms. Allocated memory is still 237.0MB. Free memory was 101.8MB in the beginning and 88.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-17 22:47:20,787 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 178.3MB. Free memory was 144.1MB in the beginning and 144.1MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1241.36ms. Allocated memory is still 178.3MB. Free memory was 128.0MB in the beginning and 87.3MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.38ms. Allocated memory is still 178.3MB. Free memory was 87.3MB in the beginning and 144.8MB in the end (delta: -57.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.37ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 144.8MB in the beginning and 204.6MB in the end (delta: -59.8MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 788.80ms. Allocated memory is still 237.0MB. Free memory was 204.6MB in the beginning and 178.4MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 36722.75ms. Allocated memory is still 237.0MB. Free memory was 178.4MB in the beginning and 102.8MB in the end (delta: 75.6MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. * Witness Printer took 137.28ms. Allocated memory is still 237.0MB. Free memory was 101.8MB in the beginning and 88.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc44 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem45 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem31 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem31 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc44 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem45 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem31 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem31 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28494, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 1224, dependent conditional: 1084, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27479, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 209, dependent conditional: 69, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27479, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 209, dependent conditional: 69, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 69, dependent unconditional: 209, unknown: 64, unknown conditional: 16, unknown unconditional: 48] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13152, independent: 12980, independent conditional: 0, independent unconditional: 12980, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13152, independent: 12916, independent conditional: 0, independent unconditional: 12916, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 236, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 236, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34651, independent: 219, independent conditional: 0, independent unconditional: 219, dependent: 862, dependent conditional: 0, dependent unconditional: 862, unknown: 33571, unknown conditional: 0, unknown unconditional: 33571] , Protected Queries: 0 ], Cache Queries: [ total: 27564, independent: 14242, independent conditional: 0, independent unconditional: 14242, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 13184, unknown conditional: 0, unknown unconditional: 13184] , Statistics on independence cache: Total cache size (in pairs): 13120, Positive cache size: 12980, Positive conditional cache size: 0, Positive unconditional cache size: 12980, Negative cache size: 140, Negative conditional cache size: 0, Negative unconditional cache size: 140, Unknown cache size: 32, Unknown conditional cache size: 0, Unknown unconditional cache size: 32, Eliminated conditions: 85, Maximal queried relation: 1, Independence queries for same thread: 1015 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 35.0s, Number of persistent set computation: 2144, Number of trivial persistent sets: 1921, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23875, independent: 23703, independent conditional: 0, independent unconditional: 23703, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28494, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 1224, dependent conditional: 1084, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27479, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 209, dependent conditional: 69, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27479, independent: 27222, independent conditional: 3519, independent unconditional: 23703, dependent: 209, dependent conditional: 69, dependent unconditional: 140, unknown: 48, unknown conditional: 16, unknown unconditional: 32] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 69, dependent unconditional: 209, unknown: 64, unknown conditional: 16, unknown unconditional: 48] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27564, independent: 27222, independent conditional: 0, independent unconditional: 27222, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13152, independent: 12980, independent conditional: 0, independent unconditional: 12980, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13152, independent: 12916, independent conditional: 0, independent unconditional: 12916, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 236, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 236, independent: 64, independent conditional: 0, independent unconditional: 64, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34651, independent: 219, independent conditional: 0, independent unconditional: 219, dependent: 862, dependent conditional: 0, dependent unconditional: 862, unknown: 33571, unknown conditional: 0, unknown unconditional: 33571] , Protected Queries: 0 ], Cache Queries: [ total: 27564, independent: 14242, independent conditional: 0, independent unconditional: 14242, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 13184, unknown conditional: 0, unknown unconditional: 13184] , Statistics on independence cache: Total cache size (in pairs): 13120, Positive cache size: 12980, Positive conditional cache size: 0, Positive unconditional cache size: 12980, Negative cache size: 140, Negative conditional cache size: 0, Negative unconditional cache size: 140, Unknown cache size: 32, Unknown conditional cache size: 0, Unknown unconditional cache size: 32, Eliminated conditions: 85, Maximal queried relation: 1, Independence queries for same thread: 1015 - 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 } } } }; VAL [__global_lock={3:0}] [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [A={4:0}, __global_lock={3:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={4:0}, A_mutex={5:0}, __global_lock={3:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}] [L1267] 0 struct s *p; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}] [L1269] EXPR 0 \read(*A) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, __global_lock={3:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, __global_lock={3:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, t_ids={15:0}] [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={15:0}] [L1270] COND TRUE 0 i<10000 VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={15:0}] [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={15:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, arg={0:0}, arg={0:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=7, __global_lock={3:0}, p={-2:0}, p={-2:0}, x=7] [L1247] 1 p -> next = ((void *)0) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=7, __global_lock={3:0}, p={-2:0}, p={-2:0}, x=7] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={-2:0}, p={-2:0}] [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={15:0}] [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, arg={0:0}, arg={0:0}, p={-2:0}] [L1270] COND TRUE 0 i<10000 VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=1, t_ids={15:0}] [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={15:0}] [L1262] EXPR 1 p->datum VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, arg={0:0}, arg={0:0}, p={-2:0}] [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, 298 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 36.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 35.5s, 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: 2, 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 8/8 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! [2023-11-17 22:47:20,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:21,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aabded-a1bb-4dff-9494-4ae8dcf59f8f/bin/ugemcutter-verify-ztSkJzofpW/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE