./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS --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 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-8393723 [2022-11-19 08:20:18,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:20:18,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:20:19,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:20:19,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:20:19,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:20:19,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:20:19,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:20:19,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:20:19,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:20:19,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:20:19,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:20:19,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:20:19,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:20:19,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:20:19,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:20:19,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:20:19,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:20:19,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:20:19,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:20:19,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:20:19,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:20:19,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:20:19,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:20:19,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:20:19,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:20:19,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:20:19,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:20:19,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:20:19,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:20:19,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:20:19,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:20:19,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:20:19,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:20:19,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:20:19,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:20:19,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:20:19,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:20:19,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:20:19,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:20:19,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:20:19,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 08:20:19,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:20:19,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:20:19,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:20:19,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:20:19,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:20:19,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:20:19,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:20:19,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:20:19,111 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:20:19,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:20:19,112 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:20:19,112 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:20:19,112 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:20:19,113 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:20:19,113 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:20:19,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:20:19,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:20:19,113 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:20:19,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:20:19,114 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:20:19,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:20:19,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:20:19,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:20:19,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:20:19,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:20:19,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:20:19,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:20:19,116 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 08:20:19,116 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:20:19,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:20:19,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:20:19,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:20:19,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:20:19,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:20:19,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:19,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:20:19,118 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:20:19,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:20:19,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:20:19,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:20:19,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:20:19,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:20:19,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:20:19,120 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-19 08:20:19,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:20:19,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:20:19,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:20:19,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:20:19,399 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:20:19,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-19 08:20:19,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/data/62d4f4ff0/c1737809e5524f259e8e9bf53c80d105/FLAG2395715d5 [2022-11-19 08:20:20,233 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:20:20,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-19 08:20:20,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/data/62d4f4ff0/c1737809e5524f259e8e9bf53c80d105/FLAG2395715d5 [2022-11-19 08:20:20,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/data/62d4f4ff0/c1737809e5524f259e8e9bf53c80d105 [2022-11-19 08:20:20,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:20:20,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:20:20,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:20,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:20:20,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:20:20,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:20" (1/1) ... [2022-11-19 08:20:20,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3d599b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:20, skipping insertion in model container [2022-11-19 08:20:20,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:20" (1/1) ... [2022-11-19 08:20:20,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:20:20,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:20:21,316 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-19 08:20:21,390 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-19 08:20:21,395 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-19 08:20:21,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:21,419 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:20:21,461 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-19 08:20:21,488 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-19 08:20:21,494 WARN L234 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_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-19 08:20:21,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:21,629 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:20:21,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21 WrapperNode [2022-11-19 08:20:21,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:21,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:21,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:20:21,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:20:21,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:21,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:21,862 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3183 [2022-11-19 08:20:21,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:21,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:20:21,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:20:21,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:20:21,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:21,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:21,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:21,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:20:22,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:20:22,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:20:22,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:20:22,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (1/1) ... [2022-11-19 08:20:22,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:22,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:22,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:20:22,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c26cfd2-da51-48c3-b47a-1cdab2e7d4c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-19 08:20:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:20:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:20:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:20:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:20:22,313 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:20:22,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:20:22,803 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:20:26,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:20:28,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:20:28,266 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:20:28,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:28 BoogieIcfgContainer [2022-11-19 08:20:28,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:20:28,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:20:28,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:20:28,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:20:28,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:20:20" (1/3) ... [2022-11-19 08:20:28,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5737fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:28, skipping insertion in model container [2022-11-19 08:20:28,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:21" (2/3) ... [2022-11-19 08:20:28,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5737fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:28, skipping insertion in model container [2022-11-19 08:20:28,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:28" (3/3) ... [2022-11-19 08:20:28,279 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-19 08:20:28,293 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:20:28,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:20:28,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-11-19 08:20:28,303 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:20:28,638 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 08:20:28,701 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:20:28,715 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:20:28,718 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:20:28,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:20:31,382 INFO L130 PetriNetUnfolder]: 89/4477 cut-off events. [2022-11-19 08:20:31,382 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 08:20:31,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 4477 events. 89/4477 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 23236 event pairs, 0 based on Foata normal form. 0/3903 useless extension candidates. Maximal degree in co-relation 2285. Up to 6 conditions per place. [2022-11-19 08:20:31,676 INFO L119 LiptonReduction]: Number of co-enabled transitions 886816 [2022-11-19 08:22:17,216 WARN L233 SmtUtils]: Spent 13.19s 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) [2022-11-19 08:22:22,762 WARN L233 SmtUtils]: Spent 5.54s 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) [2022-11-19 08:22:40,493 WARN L233 SmtUtils]: Spent 17.73s 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) [2022-11-19 08:22:48,009 WARN L233 SmtUtils]: Spent 7.51s 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) [2022-11-19 08:23:17,466 WARN L233 SmtUtils]: Spent 12.13s 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) [2022-11-19 08:23:22,968 WARN L233 SmtUtils]: Spent 5.50s 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) [2022-11-19 08:23:38,298 WARN L233 SmtUtils]: Spent 15.33s 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) [2022-11-19 08:23:46,041 WARN L233 SmtUtils]: Spent 7.74s 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) [2022-11-19 08:24:42,593 WARN L233 SmtUtils]: Spent 12.67s 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) [2022-11-19 08:24:48,616 WARN L233 SmtUtils]: Spent 6.02s 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) [2022-11-19 08:25:06,687 WARN L233 SmtUtils]: Spent 18.07s 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) [2022-11-19 08:25:16,500 WARN L233 SmtUtils]: Spent 9.81s 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) [2022-11-19 08:25:43,933 WARN L233 SmtUtils]: Spent 13.14s 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) [2022-11-19 08:25:51,220 WARN L233 SmtUtils]: Spent 7.29s 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) [2022-11-19 08:26:09,348 WARN L233 SmtUtils]: Spent 18.13s 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) [2022-11-19 08:26:18,942 WARN L233 SmtUtils]: Spent 9.59s 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) [2022-11-19 08:26:43,863 WARN L233 SmtUtils]: Spent 12.88s 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) [2022-11-19 08:26:50,172 WARN L233 SmtUtils]: Spent 6.31s 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) [2022-11-19 08:27:07,391 WARN L233 SmtUtils]: Spent 17.22s 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) [2022-11-19 08:27:16,432 WARN L233 SmtUtils]: Spent 9.04s 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) [2022-11-19 08:28:56,658 WARN L233 SmtUtils]: Spent 14.53s 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) [2022-11-19 08:29:02,013 WARN L233 SmtUtils]: Spent 5.35s 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) [2022-11-19 08:29:18,868 WARN L233 SmtUtils]: Spent 16.85s 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) [2022-11-19 08:29:26,376 WARN L233 SmtUtils]: Spent 7.51s 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) [2022-11-19 08:31:34,569 WARN L233 SmtUtils]: Spent 13.16s 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) [2022-11-19 08:31:40,760 WARN L233 SmtUtils]: Spent 6.19s 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) [2022-11-19 08:31:58,701 WARN L233 SmtUtils]: Spent 17.94s 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) [2022-11-19 08:32:06,615 WARN L233 SmtUtils]: Spent 7.91s 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) [2022-11-19 08:32:20,610 WARN L233 SmtUtils]: Spent 13.27s 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) [2022-11-19 08:32:26,957 WARN L233 SmtUtils]: Spent 6.35s 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) [2022-11-19 08:32:45,425 WARN L233 SmtUtils]: Spent 18.47s 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) [2022-11-19 08:32:53,515 WARN L233 SmtUtils]: Spent 8.09s 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) [2022-11-19 08:33:48,019 WARN L233 SmtUtils]: Spent 19.12s 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) [2022-11-19 08:33:56,569 WARN L233 SmtUtils]: Spent 8.55s 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) [2022-11-19 08:34:19,800 WARN L233 SmtUtils]: Spent 23.23s 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) [2022-11-19 08:34:29,500 WARN L233 SmtUtils]: Spent 9.70s 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)