./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:34:34,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:34:34,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:34:34,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:34:34,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:34:34,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:34:34,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:34:34,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:34:34,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:34:34,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:34:34,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:34:34,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:34:34,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:34:34,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:34:34,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:34:34,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:34:34,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:34:34,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:34:34,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:34:34,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:34:34,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:34:34,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:34:34,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:34:34,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:34:34,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:34:34,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:34:34,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:34:34,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:34:34,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:34:34,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:34:34,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:34:34,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:34:34,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:34:34,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:34:34,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:34:34,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:34:34,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:34:34,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:34:34,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:34:34,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:34:34,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:34:34,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:34:34,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:34:34,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:34:34,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:34:34,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:34:34,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:34:34,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:34:34,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:34:34,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:34:34,515 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:34:34,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:34:34,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:34:34,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:34:34,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:34:34,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:34:34,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:34:34,518 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:34:34,518 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:34:34,519 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:34:34,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:34:34,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:34:34,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:34:34,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:34:34,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:34:34,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:34:34,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:34:34,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:34:34,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:34:34,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:34:34,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:34:34,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:34:34,523 INFO L138 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-16 11:34:34,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:34:34,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:34:34,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:34:34,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:34:34,819 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:34:34,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 11:34:34,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/data/d6f9052e2/214e1ff41cd74c1a87f9aea2245e3797/FLAGd71079210 [2022-11-16 11:34:35,607 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:34:35,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 11:34:35,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/data/d6f9052e2/214e1ff41cd74c1a87f9aea2245e3797/FLAGd71079210 [2022-11-16 11:34:35,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/data/d6f9052e2/214e1ff41cd74c1a87f9aea2245e3797 [2022-11-16 11:34:35,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:34:35,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:34:35,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:34:35,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:34:35,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:34:35,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:34:35" (1/1) ... [2022-11-16 11:34:35,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6c9a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:35, skipping insertion in model container [2022-11-16 11:34:35,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:34:35" (1/1) ... [2022-11-16 11:34:35,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:34:35,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:34:36,787 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 11:34:36,837 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 11:34:36,844 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 11:34:36,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:34:36,886 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:34:36,944 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 11:34:36,960 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 11:34:36,964 WARN L229 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_df112f3d-d8b0-44b1-b219-8e6b033f7e51/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 11:34:36,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:34:37,073 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:34:37,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37 WrapperNode [2022-11-16 11:34:37,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:34:37,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:34:37,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:34:37,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:34:37,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,215 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1715 [2022-11-16 11:34:37,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:34:37,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:34:37,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:34:37,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:34:37,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:34:37,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:34:37,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:34:37,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:34:37,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (1/1) ... [2022-11-16 11:34:37,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:34:37,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:34:37,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:34:37,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df112f3d-d8b0-44b1-b219-8e6b033f7e51/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:34:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-16 11:34:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-16 11:34:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:34:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:34:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:34:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:34:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:34:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:34:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:34:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:34:37,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:34:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:34:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:34:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:34:37,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:34:37,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:34:37,903 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:34:37,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:34:40,547 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:34:41,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:34:41,340 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 11:34:41,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:34:41 BoogieIcfgContainer [2022-11-16 11:34:41,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:34:41,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:34:41,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:34:41,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:34:41,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:34:35" (1/3) ... [2022-11-16 11:34:41,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16928d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:34:41, skipping insertion in model container [2022-11-16 11:34:41,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:34:37" (2/3) ... [2022-11-16 11:34:41,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16928d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:34:41, skipping insertion in model container [2022-11-16 11:34:41,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:34:41" (3/3) ... [2022-11-16 11:34:41,353 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-16 11:34:41,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:34:41,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations. [2022-11-16 11:34:41,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:34:41,648 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:34:41,797 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:34:41,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2139 places, 2184 transitions, 4376 flow [2022-11-16 11:34:41,818 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2139 places, 2184 transitions, 4376 flow [2022-11-16 11:34:41,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2139 places, 2184 transitions, 4376 flow [2022-11-16 11:34:43,883 INFO L130 PetriNetUnfolder]: 89/4064 cut-off events. [2022-11-16 11:34:43,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:34:43,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 4064 events. 89/4064 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22116 event pairs, 0 based on Foata normal form. 0/2992 useless extension candidates. Maximal degree in co-relation 2077. Up to 6 conditions per place. [2022-11-16 11:34:44,177 INFO L119 LiptonReduction]: Number of co-enabled transitions 724224