./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 e04fb08f 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 16:07:06,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:07:06,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:07:06,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:07:06,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:07:06,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:07:06,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:07:06,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:07:06,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:07:06,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:07:06,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:07:06,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:07:06,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:07:06,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:07:06,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:07:06,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:07:06,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:07:06,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:07:06,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:07:06,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:07:06,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:07:06,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:07:06,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:07:06,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:07:06,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:07:06,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:07:06,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:07:06,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:07:06,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:07:06,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:07:06,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:07:06,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:07:06,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:07:06,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:07:06,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:07:06,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:07:06,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:07:06,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:07:06,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:07:06,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:07:06,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:07:06,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 16:07:06,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:07:06,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:07:06,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:07:06,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:07:06,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:07:06,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:07:06,384 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:07:06,384 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:07:06,384 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:07:06,385 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:07:06,386 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:07:06,386 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:07:06,386 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:07:06,387 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:07:06,387 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:07:06,387 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:07:06,388 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:07:06,388 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:07:06,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:07:06,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:07:06,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:07:06,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:07:06,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:07:06,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:07:06,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:07:06,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:07:06,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:07:06,393 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 16:07:06,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:07:06,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:07:06,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:07:06,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:07:06,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:07:06,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:07:06,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:07:06,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:07:06,396 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:07:06,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:07:06,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:07:06,397 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:07:06,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:07:06,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:07:06,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:07:06,398 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-16 16:07:06,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:07:06,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:07:06,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:07:06,836 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:07:06,837 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:07:06,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 16:07:06,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/data/266a4e623/c9933eda890947ecb7fbf4b83bf2f689/FLAGd5a86dd9b [2022-11-16 16:07:07,573 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:07:07,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 16:07:07,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/data/266a4e623/c9933eda890947ecb7fbf4b83bf2f689/FLAGd5a86dd9b [2022-11-16 16:07:07,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/data/266a4e623/c9933eda890947ecb7fbf4b83bf2f689 [2022-11-16 16:07:07,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:07:07,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:07:07,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:07:07,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:07:07,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:07:07,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:07:07" (1/1) ... [2022-11-16 16:07:07,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cfd0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:07, skipping insertion in model container [2022-11-16 16:07:07,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:07:07" (1/1) ... [2022-11-16 16:07:07,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:07:07,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:07:08,817 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 16:07:08,861 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 16:07:08,867 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 16:07:08,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:07:08,893 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:07:08,936 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 16:07:08,975 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 16:07:08,988 WARN L229 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_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 16:07:09,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:07:09,146 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:07:09,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09 WrapperNode [2022-11-16 16:07:09,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:07:09,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:07:09,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:07:09,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:07:09,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,399 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3183 [2022-11-16 16:07:09,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:07:09,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:07:09,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:07:09,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:07:09,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:07:09,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:07:09,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:07:09,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:07:09,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (1/1) ... [2022-11-16 16:07:09,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:07:09,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:07:09,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:07:09,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c39ab683-e3a4-4cf7-bf37-9aae7854a1ef/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:07:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-16 16:07:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-16 16:07:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:07:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:07:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:07:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:07:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:07:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:07:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:07:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:07:09,735 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 16:07:10,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:07:10,206 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:07:14,720 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:07:16,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:07:16,328 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 16:07:16,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:07:16 BoogieIcfgContainer [2022-11-16 16:07:16,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:07:16,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:07:16,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:07:16,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:07:16,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:07:07" (1/3) ... [2022-11-16 16:07:16,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f815ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:07:16, skipping insertion in model container [2022-11-16 16:07:16,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:07:09" (2/3) ... [2022-11-16 16:07:16,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f815ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:07:16, skipping insertion in model container [2022-11-16 16:07:16,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:07:16" (3/3) ... [2022-11-16 16:07:16,350 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-16 16:07:16,361 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:07:16,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:07:16,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-11-16 16:07:16,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:07:16,730 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 16:07:16,790 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 16:07:16,808 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-16 16:07:16,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-16 16:07:16,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2366 places, 2411 transitions, 4830 flow [2022-11-16 16:07:19,447 INFO L130 PetriNetUnfolder]: 89/4477 cut-off events. [2022-11-16 16:07:19,447 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 16:07:19,533 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. [2022-11-16 16:07:19,867 INFO L119 LiptonReduction]: Number of co-enabled transitions 886816 [2022-11-16 16:09:12,805 WARN L233 SmtUtils]: Spent 16.96s 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) [2022-11-16 16:09:20,855 WARN L233 SmtUtils]: Spent 8.05s 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) [2022-11-16 16:09:43,189 WARN L233 SmtUtils]: Spent 22.33s 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) [2022-11-16 16:09:52,682 WARN L233 SmtUtils]: Spent 9.49s 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) [2022-11-16 16:10:30,621 WARN L233 SmtUtils]: Spent 17.62s 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) [2022-11-16 16:10:37,734 WARN L233 SmtUtils]: Spent 7.11s 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) [2022-11-16 16:11:00,227 WARN L233 SmtUtils]: Spent 22.49s 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) [2022-11-16 16:11:10,543 WARN L233 SmtUtils]: Spent 10.31s 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) [2022-11-16 16:12:14,331 WARN L233 SmtUtils]: Spent 14.41s 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) [2022-11-16 16:12:21,289 WARN L233 SmtUtils]: Spent 6.96s 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) [2022-11-16 16:12:41,528 WARN L233 SmtUtils]: Spent 20.24s 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) [2022-11-16 16:12:52,772 WARN L233 SmtUtils]: Spent 11.24s 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) [2022-11-16 16:13:21,422 WARN L233 SmtUtils]: Spent 15.29s 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) [2022-11-16 16:13:29,199 WARN L233 SmtUtils]: Spent 7.78s 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) [2022-11-16 16:13:49,725 WARN L233 SmtUtils]: Spent 20.52s 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) [2022-11-16 16:13:59,740 WARN L233 SmtUtils]: Spent 10.01s 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) [2022-11-16 16:14:25,992 WARN L233 SmtUtils]: Spent 14.24s 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) [2022-11-16 16:14:31,481 WARN L233 SmtUtils]: Spent 5.49s 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) [2022-11-16 16:14:48,531 WARN L233 SmtUtils]: Spent 17.05s 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) [2022-11-16 16:14:56,962 WARN L233 SmtUtils]: Spent 8.43s 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) [2022-11-16 16:16:40,457 WARN L233 SmtUtils]: Spent 14.90s 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) [2022-11-16 16:16:46,365 WARN L233 SmtUtils]: Spent 5.91s 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) [2022-11-16 16:17:02,193 WARN L233 SmtUtils]: Spent 15.83s 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) [2022-11-16 16:17:10,277 WARN L233 SmtUtils]: Spent 8.08s 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) [2022-11-16 16:19:17,324 WARN L233 SmtUtils]: Spent 15.25s 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) [2022-11-16 16:19:25,451 WARN L233 SmtUtils]: Spent 8.13s 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) [2022-11-16 16:19:41,813 WARN L233 SmtUtils]: Spent 16.36s 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) [2022-11-16 16:19:51,030 WARN L233 SmtUtils]: Spent 9.22s 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) [2022-11-16 16:20:04,960 WARN L233 SmtUtils]: Spent 13.19s 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) [2022-11-16 16:20:11,839 WARN L233 SmtUtils]: Spent 6.88s 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) [2022-11-16 16:20:31,879 WARN L233 SmtUtils]: Spent 20.04s 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) [2022-11-16 16:20:39,450 WARN L233 SmtUtils]: Spent 7.57s 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) [2022-11-16 16:21:22,519 WARN L233 SmtUtils]: Spent 13.35s 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) [2022-11-16 16:21:30,803 WARN L233 SmtUtils]: Spent 8.28s 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) [2022-11-16 16:21:48,296 WARN L233 SmtUtils]: Spent 17.49s 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) [2022-11-16 16:21:57,699 WARN L233 SmtUtils]: Spent 9.40s 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)