./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer 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-b5237d8 [2022-11-22 02:16:50,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:50,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:50,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:50,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:50,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:50,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:50,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:50,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:50,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:50,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:50,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:50,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:50,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:50,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:50,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:50,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:50,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:50,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:50,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:50,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:50,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:50,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:50,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:50,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:50,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:50,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:50,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:50,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:50,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:50,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:50,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:50,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:50,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:50,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:50,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:50,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:50,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:50,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:50,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:50,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:50,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:16:50,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:50,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:50,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:50,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:50,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:50,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:50,827 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:50,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:50,828 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:50,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:16:50,829 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:50,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:50,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:16:50,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:16:50,830 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:50,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:16:50,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:16:50,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:16:50,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:50,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:16:50,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:16:50,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:16:50,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:16:50,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:50,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:50,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:50,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:50,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:16:50,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:16:50,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:50,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:50,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:50,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:50,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:50,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:50,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:50,836 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:16:50,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:50,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:50,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:16:50,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:16:50,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:50,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:50,837 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_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-22 02:16:51,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:51,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:51,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:51,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:51,200 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:51,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-22 02:16:54,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:54,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:54,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-22 02:16:54,951 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/data/562d21fd2/d256bdabed7141849b33637324562df9/FLAGd2a4d8eb1 [2022-11-22 02:16:54,970 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/data/562d21fd2/d256bdabed7141849b33637324562df9 [2022-11-22 02:16:54,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:54,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:54,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:54,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:54,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:54,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:54" (1/1) ... [2022-11-22 02:16:54,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bc90ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:54, skipping insertion in model container [2022-11-22 02:16:54,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:54" (1/1) ... [2022-11-22 02:16:54,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:55,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:56,065 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-22 02:16:56,104 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-22 02:16:56,110 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-22 02:16:56,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:56,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:16:56,193 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-22 02:16:56,211 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-22 02:16:56,215 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_4084a297-557c-41ca-95fe-17db9389232a/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-22 02:16:56,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:56,350 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:16:56,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56 WrapperNode [2022-11-22 02:16:56,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:56,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:56,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:16:56,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:16:56,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,484 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1809 [2022-11-22 02:16:56,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:56,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:16:56,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:16:56,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:16:56,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:16:56,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:16:56,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:16:56,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:16:56,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (1/1) ... [2022-11-22 02:16:56,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:56,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:56,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:16:56,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4084a297-557c-41ca-95fe-17db9389232a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:16:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-22 02:16:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-22 02:16:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:16:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:16:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:16:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:16:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:16:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:16:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:16:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:16:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:16:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:16:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:16:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:16:56,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:16:56,852 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:16:57,336 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:16:57,345 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:16:59,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:17:00,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:17:00,179 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 02:17:00,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:00 BoogieIcfgContainer [2022-11-22 02:17:00,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:17:00,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:17:00,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:17:00,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:17:00,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:54" (1/3) ... [2022-11-22 02:17:00,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6873346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:00, skipping insertion in model container [2022-11-22 02:17:00,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:56" (2/3) ... [2022-11-22 02:17:00,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6873346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:00, skipping insertion in model container [2022-11-22 02:17:00,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:00" (3/3) ... [2022-11-22 02:17:00,193 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-22 02:17:00,204 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:17:00,216 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:17:00,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2022-11-22 02:17:00,217 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:17:00,403 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:17:00,466 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:17:00,482 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1800 places, 1845 transitions, 3698 flow [2022-11-22 02:17:00,486 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1800 places, 1845 transitions, 3698 flow [2022-11-22 02:17:00,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1800 places, 1845 transitions, 3698 flow [2022-11-22 02:17:02,260 INFO L130 PetriNetUnfolder]: 89/3419 cut-off events. [2022-11-22 02:17:02,261 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:17:02,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3425 conditions, 3419 events. 89/3419 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 16424 event pairs, 0 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 1743. Up to 6 conditions per place. [2022-11-22 02:17:02,489 INFO L119 LiptonReduction]: Number of co-enabled transitions 506880 [2022-11-22 02:31:37,865 WARN L233 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 241 DAG size of output: 229 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)