./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --- 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-4e7fbc6 [2022-11-23 15:28:49,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:28:49,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:28:49,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:28:49,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:28:49,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:28:49,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:28:49,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:28:49,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:28:49,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:28:49,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:28:49,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:28:49,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:28:49,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:28:49,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:28:49,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:28:49,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:28:49,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:28:49,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:28:49,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:28:49,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:28:49,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:28:49,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:28:49,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:28:49,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:28:49,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:28:49,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:28:49,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:28:49,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:28:49,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:28:49,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:28:49,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:28:49,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:28:49,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:28:49,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:28:49,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:28:49,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:28:49,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:28:49,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:28:49,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:28:49,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:28:49,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:28:49,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:28:49,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:28:49,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:28:49,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:28:49,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:28:49,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:28:49,649 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:28:49,649 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:28:49,650 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:28:49,650 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:28:49,651 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:28:49,651 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:28:49,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:28:49,652 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:28:49,652 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:28:49,652 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:28:49,652 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:28:49,652 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:28:49,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:28:49,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:28:49,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:28:49,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:28:49,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:28:49,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:28:49,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:28:49,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:28:49,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:28:49,655 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:28:49,656 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:28:49,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:28:49,656 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:28:49,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:28:49,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:28:49,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:28:49,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:28:49,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:28:49,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:28:49,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:28:49,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:28:49,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:28:49,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:28:49,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:28:49,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:28:49,660 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 [2022-11-23 15:28:50,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:28:50,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:28:50,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:28:50,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:28:50,056 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:28:50,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-23 15:28:53,143 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:28:53,554 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:28:53,555 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-23 15:28:53,590 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/data/56e61ed9e/a07c3f1ed8bf4c1ea34da628b7a95e59/FLAG52dd57645 [2022-11-23 15:28:53,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/data/56e61ed9e/a07c3f1ed8bf4c1ea34da628b7a95e59 [2022-11-23 15:28:53,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:28:53,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:28:53,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:28:53,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:28:53,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:28:53,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:53" (1/1) ... [2022-11-23 15:28:53,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619a638e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:53, skipping insertion in model container [2022-11-23 15:28:53,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:53" (1/1) ... [2022-11-23 15:28:53,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:28:53,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:28:54,537 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-23 15:28:54,584 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-23 15:28:54,590 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-23 15:28:54,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:28:54,621 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:28:54,678 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-23 15:28:54,719 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-23 15:28:54,730 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_ecb9f598-3293-40e7-8c1b-e5398de03b4e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-23 15:28:54,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:28:54,906 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:28:54,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54 WrapperNode [2022-11-23 15:28:54,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:28:54,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:28:54,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:28:54,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:28:54,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:54,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,192 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3187 [2022-11-23 15:28:55,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:28:55,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:28:55,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:28:55,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:28:55,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:28:55,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:28:55,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:28:55,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:28:55,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (1/1) ... [2022-11-23 15:28:55,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:28:55,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:28:55,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:28:55,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb9f598-3293-40e7-8c1b-e5398de03b4e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:28:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-23 15:28:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:28:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:28:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:28:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:28:55,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:28:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:28:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:28:55,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:28:55,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:28:55,606 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:28:56,024 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:28:56,026 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:29:00,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:29:01,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:29:01,819 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-23 15:29:01,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:01 BoogieIcfgContainer [2022-11-23 15:29:01,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:29:01,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:29:01,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:29:01,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:29:01,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:28:53" (1/3) ... [2022-11-23 15:29:01,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:01, skipping insertion in model container [2022-11-23 15:29:01,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:54" (2/3) ... [2022-11-23 15:29:01,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:29:01, skipping insertion in model container [2022-11-23 15:29:01,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:29:01" (3/3) ... [2022-11-23 15:29:01,838 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-1.i [2022-11-23 15:29:01,849 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:29:01,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:29:01,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-11-23 15:29:01,861 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:29:02,177 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 15:29:02,241 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:29:02,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-11-23 15:29:02,265 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-11-23 15:29:02,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2370 places, 2415 transitions, 4838 flow [2022-11-23 15:29:04,807 INFO L130 PetriNetUnfolder]: 89/4485 cut-off events. [2022-11-23 15:29:04,807 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 15:29:04,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 4485 events. 89/4485 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 23281 event pairs, 0 based on Foata normal form. 0/3911 useless extension candidates. Maximal degree in co-relation 2289. Up to 6 conditions per place. [2022-11-23 15:29:05,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 888528 [2022-11-23 15:30:50,089 WARN L233 SmtUtils]: Spent 13.59s on a formula simplification. DAG size of input: 124 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:30:55,692 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:31:11,419 WARN L233 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 128 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:31:19,794 WARN L233 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:31:47,064 WARN L233 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 124 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:31:53,395 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:32:10,195 WARN L233 SmtUtils]: Spent 16.80s on a formula simplification. DAG size of input: 128 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:32:18,222 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:33:18,386 WARN L233 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:33:25,603 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:33:43,996 WARN L233 SmtUtils]: Spent 18.39s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:33:53,529 WARN L233 SmtUtils]: Spent 9.53s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:34:24,909 WARN L233 SmtUtils]: Spent 15.89s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:34:32,676 WARN L233 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:34:53,655 WARN L233 SmtUtils]: Spent 20.98s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:35:05,149 WARN L233 SmtUtils]: Spent 11.49s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:35:37,160 WARN L233 SmtUtils]: Spent 20.08s on a formula simplification. DAG size of input: 124 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:35:45,101 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:36:06,512 WARN L233 SmtUtils]: Spent 21.41s on a formula simplification. DAG size of input: 128 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:36:16,181 WARN L233 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:38:02,616 WARN L233 SmtUtils]: Spent 16.06s on a formula simplification. DAG size of input: 124 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:38:10,458 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:38:31,323 WARN L233 SmtUtils]: Spent 20.86s on a formula simplification. DAG size of input: 128 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:38:40,676 WARN L233 SmtUtils]: Spent 9.35s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:40:53,847 WARN L233 SmtUtils]: Spent 19.24s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:41:01,780 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:41:21,683 WARN L233 SmtUtils]: Spent 19.90s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:41:30,312 WARN L233 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:41:47,462 WARN L233 SmtUtils]: Spent 16.12s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:41:54,920 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:42:16,490 WARN L233 SmtUtils]: Spent 21.57s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:42:25,669 WARN L233 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:43:27,271 WARN L233 SmtUtils]: Spent 17.33s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:43:33,777 WARN L233 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:43:55,737 WARN L233 SmtUtils]: Spent 21.96s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:44:07,061 WARN L233 SmtUtils]: Spent 11.32s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)