./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 b5237d83 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_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba --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 Taipan --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-b5237d8 [2022-11-22 01:30:35,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:30:35,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:30:35,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:30:35,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:30:35,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:30:35,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:30:35,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:30:35,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:30:35,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:30:35,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:30:35,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:30:35,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:30:35,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:30:35,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:30:35,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:30:35,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:30:35,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:30:35,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:30:35,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:30:35,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:30:35,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:30:35,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:30:35,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:30:35,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:30:35,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:30:35,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:30:35,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:30:35,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:30:35,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:30:35,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:30:35,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:30:35,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:30:35,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:30:35,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:30:35,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:30:35,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:30:35,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:30:35,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:30:35,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:30:35,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:30:35,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:30:35,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:30:35,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:30:35,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:30:35,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:30:35,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:30:35,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:30:35,572 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:30:35,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:30:35,573 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:30:35,573 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:30:35,574 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:30:35,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:30:35,574 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:30:35,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:30:35,575 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:30:35,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:30:35,575 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:30:35,576 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:30:35,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:30:35,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:30:35,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:30:35,577 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:30:35,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:30:35,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:30:35,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:30:35,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:30:35,578 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:30:35,579 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:30:35,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:30:35,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:30:35,579 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:30:35,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:30:35,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:30:35,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:30:35,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:30:35,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:35,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:30:35,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:30:35,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:30:35,581 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:30:35,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:30:35,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:30:35,582 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_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-22 01:30:35,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:30:35,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:30:35,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:30:35,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:30:35,908 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:30:35,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-22 01:30:38,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:30:39,293 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:30:39,294 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-22 01:30:39,319 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/data/265aea4d8/db4aa85508a34de89cf09660986b2158/FLAG5d4d8b5ab [2022-11-22 01:30:39,334 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/data/265aea4d8/db4aa85508a34de89cf09660986b2158 [2022-11-22 01:30:39,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:30:39,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:30:39,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:39,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:30:39,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:30:39,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:39" (1/1) ... [2022-11-22 01:30:39,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a62e59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:39, skipping insertion in model container [2022-11-22 01:30:39,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:30:39" (1/1) ... [2022-11-22 01:30:39,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:30:39,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:30:40,324 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-22 01:30:40,365 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-22 01:30:40,376 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-22 01:30:40,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:40,429 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:30:40,484 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-22 01:30:40,503 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-22 01:30:40,507 WARN L237 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_08d49f68-0e45-4deb-b913-531a798e2da6/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-22 01:30:40,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:30:40,674 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:30:40,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40 WrapperNode [2022-11-22 01:30:40,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:30:40,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:40,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:30:40,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:30:40,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,823 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1719 [2022-11-22 01:30:40,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:30:40,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:30:40,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:30:40,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:30:40,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:40,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:41,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:30:41,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:30:41,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:30:41,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:30:41,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (1/1) ... [2022-11-22 01:30:41,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:30:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:41,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:30:41,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08d49f68-0e45-4deb-b913-531a798e2da6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:30:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-22 01:30:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:30:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:30:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:30:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:30:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:30:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:30:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:30:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:30:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:30:41,095 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:30:41,546 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:30:41,549 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:30:44,459 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:30:45,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:30:45,284 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 01:30:45,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:45 BoogieIcfgContainer [2022-11-22 01:30:45,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:30:45,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:30:45,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:30:45,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:30:45,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:30:39" (1/3) ... [2022-11-22 01:30:45,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b06ab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:45, skipping insertion in model container [2022-11-22 01:30:45,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:30:40" (2/3) ... [2022-11-22 01:30:45,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b06ab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:30:45, skipping insertion in model container [2022-11-22 01:30:45,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:30:45" (3/3) ... [2022-11-22 01:30:45,301 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-22 01:30:45,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:30:45,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations. [2022-11-22 01:30:45,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:30:45,596 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 01:30:45,659 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:30:45,673 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2143 places, 2188 transitions, 4384 flow [2022-11-22 01:30:45,676 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2143 places, 2188 transitions, 4384 flow [2022-11-22 01:30:45,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2143 places, 2188 transitions, 4384 flow [2022-11-22 01:30:47,590 INFO L130 PetriNetUnfolder]: 89/4072 cut-off events. [2022-11-22 01:30:47,591 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 01:30:47,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4078 conditions, 4072 events. 89/4072 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 22105 event pairs, 0 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 2081. Up to 6 conditions per place. [2022-11-22 01:30:47,920 INFO L119 LiptonReduction]: Number of co-enabled transitions 725760 [2022-11-22 01:39:44,232 WARN L233 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 225 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:39:52,340 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:06,128 WARN L233 SmtUtils]: Spent 13.78s on a formula simplification. DAG size of input: 224 DAG size of output: 215 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:12,839 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:43,016 WARN L233 SmtUtils]: Spent 17.16s on a formula simplification. DAG size of input: 219 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:50,562 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:41:04,544 WARN L233 SmtUtils]: Spent 13.98s on a formula simplification. DAG size of input: 218 DAG size of output: 213 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:41:11,393 WARN L233 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)