./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 2329fc70 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 16:08:59,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:08:59,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:09:00,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:09:00,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:09:00,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:09:00,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:09:00,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:09:00,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:09:00,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:09:00,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:09:00,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:09:00,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:09:00,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:09:00,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:09:00,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:09:00,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:09:00,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:09:00,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:09:00,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:09:00,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:09:00,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:09:00,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:09:00,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:09:00,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:09:00,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:09:00,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:09:00,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:09:00,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:09:00,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:09:00,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:09:00,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:09:00,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:09:00,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:09:00,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:09:00,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:09:00,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:09:00,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:09:00,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:09:00,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:09:00,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:09:00,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 16:09:00,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:09:00,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:09:00,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:09:00,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:09:00,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:09:00,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:09:00,059 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:09:00,059 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:09:00,059 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:09:00,059 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:09:00,060 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:09:00,060 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:09:00,060 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:09:00,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:09:00,060 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:09:00,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:09:00,061 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:09:00,061 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:09:00,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:09:00,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 16:09:00,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:09:00,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:09:00,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:09:00,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:09:00,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:09:00,064 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:09:00,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:09:00,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:09:00,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:09:00,064 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-12-14 16:09:00,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:09:00,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:09:00,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:09:00,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:09:00,264 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:09:00,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-12-14 16:09:02,869 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:09:03,100 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:09:03,101 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-12-14 16:09:03,112 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/data/35392096b/b3c9a950a5ff4807853fd6c2704a6ace/FLAG45068ed04 [2022-12-14 16:09:03,123 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/data/35392096b/b3c9a950a5ff4807853fd6c2704a6ace [2022-12-14 16:09:03,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:09:03,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:09:03,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:09:03,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:09:03,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:09:03,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d13f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03, skipping insertion in model container [2022-12-14 16:09:03,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:09:03,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:09:03,631 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-12-14 16:09:03,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:09:03,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:09:03,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:09:03,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:09:03,671 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-12-14 16:09:03,676 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-12-14 16:09:03,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:09:03,701 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:09:03,737 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-12-14 16:09:03,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:09:03,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:09:03,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:09:03,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:09:03,756 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-12-14 16:09:03,760 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_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-12-14 16:09:03,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:09:03,848 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:09:03,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03 WrapperNode [2022-12-14 16:09:03,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:09:03,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:09:03,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:09:03,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:09:03,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,958 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3187 [2022-12-14 16:09:03,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:09:03,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:09:03,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:09:03,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:09:03,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:03,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:09:04,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:09:04,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:09:04,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:09:04,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (1/1) ... [2022-12-14 16:09:04,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:09:04,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:09:04,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:09:04,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead7b8bc-6fa0-417d-b9b3-ec0d3d80e86f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:09:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-12-14 16:09:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-12-14 16:09:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 16:09:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:09:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:09:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:09:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:09:04,173 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 16:09:04,418 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:09:04,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:09:07,118 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:09:08,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:09:08,013 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-14 16:09:08,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:09:08 BoogieIcfgContainer [2022-12-14 16:09:08,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:09:08,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:09:08,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:09:08,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:09:08,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:09:03" (1/3) ... [2022-12-14 16:09:08,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d535a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:09:08, skipping insertion in model container [2022-12-14 16:09:08,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:09:03" (2/3) ... [2022-12-14 16:09:08,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d535a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:09:08, skipping insertion in model container [2022-12-14 16:09:08,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:09:08" (3/3) ... [2022-12-14 16:09:08,037 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-12-14 16:09:08,045 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 16:09:08,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:09:08,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-12-14 16:09:08,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 16:09:08,181 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 16:09:08,237 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 16:09:08,246 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-12-14 16:09:08,248 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-12-14 16:09:08,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2370 places, 2415 transitions, 4838 flow [2022-12-14 16:09:09,621 INFO L130 PetriNetUnfolder]: 89/4485 cut-off events. [2022-12-14 16:09:09,621 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 16:09:09,653 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 23280 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. [2022-12-14 16:09:09,856 INFO L119 LiptonReduction]: Number of co-enabled transitions 888528 [2022-12-14 16:10:47,369 WARN L233 SmtUtils]: Spent 11.72s 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) [2022-12-14 16:11:07,375 WARN L233 SmtUtils]: Spent 15.02s 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) [2022-12-14 16:11:13,432 WARN L233 SmtUtils]: Spent 6.06s 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) [2022-12-14 16:11:42,492 WARN L233 SmtUtils]: Spent 12.04s 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) [2022-12-14 16:11:48,081 WARN L233 SmtUtils]: Spent 5.59s 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) [2022-12-14 16:12:02,265 WARN L233 SmtUtils]: Spent 14.18s 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) [2022-12-14 16:12:09,257 WARN L233 SmtUtils]: Spent 6.99s 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) [2022-12-14 16:13:02,897 WARN L233 SmtUtils]: Spent 10.68s 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) [2022-12-14 16:13:08,421 WARN L233 SmtUtils]: Spent 5.52s 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) [2022-12-14 16:13:24,056 WARN L233 SmtUtils]: Spent 15.63s 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) [2022-12-14 16:13:31,300 WARN L233 SmtUtils]: Spent 7.24s 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) [2022-12-14 16:13:55,670 WARN L233 SmtUtils]: Spent 11.96s 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) [2022-12-14 16:14:01,847 WARN L233 SmtUtils]: Spent 6.18s 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) [2022-12-14 16:14:16,637 WARN L233 SmtUtils]: Spent 14.79s 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) [2022-12-14 16:14:23,481 WARN L233 SmtUtils]: Spent 6.84s 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) [2022-12-14 16:14:46,819 WARN L233 SmtUtils]: Spent 12.90s 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) [2022-12-14 16:14:51,919 WARN L233 SmtUtils]: Spent 5.10s 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) [2022-12-14 16:15:07,230 WARN L233 SmtUtils]: Spent 15.31s 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) [2022-12-14 16:15:14,339 WARN L233 SmtUtils]: Spent 7.11s 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) [2022-12-14 16:16:47,786 WARN L233 SmtUtils]: Spent 11.75s 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) [2022-12-14 16:16:53,290 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) [2022-12-14 16:17:10,195 WARN L233 SmtUtils]: Spent 16.90s 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) [2022-12-14 16:17:18,609 WARN L233 SmtUtils]: Spent 8.41s 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) [2022-12-14 16:19:14,270 WARN L233 SmtUtils]: Spent 11.46s 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) [2022-12-14 16:19:20,207 WARN L233 SmtUtils]: Spent 5.94s 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) [2022-12-14 16:19:36,971 WARN L233 SmtUtils]: Spent 16.76s 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) [2022-12-14 16:19:45,218 WARN L233 SmtUtils]: Spent 8.25s 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) [2022-12-14 16:19:57,158 WARN L233 SmtUtils]: Spent 11.28s 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) [2022-12-14 16:20:02,898 WARN L233 SmtUtils]: Spent 5.74s 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) [2022-12-14 16:20:16,961 WARN L233 SmtUtils]: Spent 14.06s 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) [2022-12-14 16:20:24,252 WARN L233 SmtUtils]: Spent 7.29s 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) [2022-12-14 16:21:04,605 WARN L233 SmtUtils]: Spent 11.91s 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) [2022-12-14 16:21:10,104 WARN L233 SmtUtils]: Spent 5.50s 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) [2022-12-14 16:21:24,962 WARN L233 SmtUtils]: Spent 14.86s 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) [2022-12-14 16:21:33,430 WARN L233 SmtUtils]: Spent 8.47s 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) [2022-12-14 16:23:02,973 WARN L233 SmtUtils]: Spent 11.79s 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) [2022-12-14 16:23:08,455 WARN L233 SmtUtils]: Spent 5.48s 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) [2022-12-14 16:23:22,418 WARN L233 SmtUtils]: Spent 13.96s 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) [2022-12-14 16:23:28,808 WARN L233 SmtUtils]: Spent 6.39s 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)