./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --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-5e519f3 [2022-11-02 20:31:46,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:31:46,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:31:46,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:31:46,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:31:46,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:31:46,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:31:46,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:31:46,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:31:46,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:31:46,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:31:46,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:31:46,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:31:46,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:31:46,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:31:46,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:31:46,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:31:46,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:31:46,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:31:46,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:31:46,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:31:46,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:31:46,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:31:46,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:31:46,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:31:46,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:31:46,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:31:46,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:31:46,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:31:46,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:31:46,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:31:46,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:31:46,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:31:46,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:31:46,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:31:46,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:31:46,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:31:46,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:31:46,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:31:46,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:31:46,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:31:46,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:31:46,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:31:46,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:31:46,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:31:46,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:31:46,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:31:46,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:31:46,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:31:46,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:31:46,616 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:31:46,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:31:46,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:31:46,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:31:46,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:31:46,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:31:46,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:31:46,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:31:46,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:31:46,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:31:46,624 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:31:46,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:31:46,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:31:46,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:31:46,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:31:46,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:31:46,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:31:46,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:31:46,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:31:46,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:31:46,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:31:46,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:31:46,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:31:46,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:31:46,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:31:46,630 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_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-02 20:31:47,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:31:47,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:31:47,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:31:47,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:31:47,062 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:31:47,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-02 20:31:47,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/data/b3021c957/226e59cd0c4640c7928dd9b4db26f6c3/FLAG43b4af60b [2022-11-02 20:31:48,039 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:31:48,040 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-02 20:31:48,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/data/b3021c957/226e59cd0c4640c7928dd9b4db26f6c3/FLAG43b4af60b [2022-11-02 20:31:48,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/data/b3021c957/226e59cd0c4640c7928dd9b4db26f6c3 [2022-11-02 20:31:48,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:31:48,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:31:48,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:31:48,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:31:48,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:31:48,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:31:48" (1/1) ... [2022-11-02 20:31:48,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e25b31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:48, skipping insertion in model container [2022-11-02 20:31:48,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:31:48" (1/1) ... [2022-11-02 20:31:48,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:31:48,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:31:49,319 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-02 20:31:49,382 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-02 20:31:49,387 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-02 20:31:49,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:31:49,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:31:49,476 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-02 20:31:49,502 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-02 20:31:49,506 WARN L230 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_5722c830-d669-4c7d-8fb9-12b15545ee86/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-02 20:31:49,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:31:49,698 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:31:49,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49 WrapperNode [2022-11-02 20:31:49,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:31:49,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:31:49,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:31:49,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:31:49,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:49,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:49,931 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1791 [2022-11-02 20:31:49,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:31:49,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:31:49,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:31:49,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:31:49,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:49,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:31:50,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:31:50,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:31:50,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:31:50,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (1/1) ... [2022-11-02 20:31:50,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:31:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:31:50,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:31:50,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5722c830-d669-4c7d-8fb9-12b15545ee86/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:31:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-02 20:31:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-02 20:31:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:31:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:31:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:31:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:31:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:31:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:31:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:31:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:31:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:31:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:31:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:31:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:31:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:31:50,291 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:31:50,904 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:31:50,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:31:53,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:31:54,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:31:54,405 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-02 20:31:54,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:31:54 BoogieIcfgContainer [2022-11-02 20:31:54,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:31:54,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:31:54,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:31:54,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:31:54,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:31:48" (1/3) ... [2022-11-02 20:31:54,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:31:54, skipping insertion in model container [2022-11-02 20:31:54,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:31:49" (2/3) ... [2022-11-02 20:31:54,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:31:54, skipping insertion in model container [2022-11-02 20:31:54,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:31:54" (3/3) ... [2022-11-02 20:31:54,434 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-02 20:31:54,451 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:31:54,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:31:54,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2022-11-02 20:31:54,466 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:31:54,756 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:31:54,898 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:31:54,920 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1782 places, 1823 transitions, 3654 flow [2022-11-02 20:31:54,926 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 1782 places, 1823 transitions, 3654 flow [2022-11-02 20:31:54,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1782 places, 1823 transitions, 3654 flow [2022-11-02 20:31:57,069 INFO L130 PetriNetUnfolder]: 81/3375 cut-off events. [2022-11-02 20:31:57,070 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:31:57,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 3375 events. 81/3375 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 16180 event pairs, 0 based on Foata normal form. 0/3125 useless extension candidates. Maximal degree in co-relation 1721. Up to 4 conditions per place. [2022-11-02 20:31:57,441 INFO L118 LiptonReduction]: Number of co-enabled transitions 499840