./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --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 19:40:19,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:40:19,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:40:19,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:40:19,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:40:19,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:40:19,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:40:19,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:40:19,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:40:19,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:40:19,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:40:19,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:40:19,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:40:19,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:40:19,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:40:19,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:40:19,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:40:19,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:40:19,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:40:19,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:40:19,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:40:19,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:40:19,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:40:19,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:40:19,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:40:19,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:40:19,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:40:19,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:40:19,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:40:19,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:40:19,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:40:19,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:40:19,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:40:19,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:40:19,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:40:19,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:40:19,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:40:19,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:40:19,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:40:19,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:40:19,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:40:19,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-16 19:40:19,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:40:19,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:40:19,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:40:19,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:40:19,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:40:19,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:40:19,536 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:40:19,536 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:40:19,536 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:40:19,537 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:40:19,538 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:40:19,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:40:19,538 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:40:19,538 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:40:19,539 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:40:19,539 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:40:19,539 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:40:19,539 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:40:19,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 19:40:19,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 19:40:19,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:40:19,550 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:40:19,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:40:19,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:40:19,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:40:19,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:40:19,552 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 19:40:19,553 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 19:40:19,553 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 19:40:19,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:40:19,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:40:19,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:40:19,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:40:19,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:40:19,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:40:19,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:40:19,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:40:19,555 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:40:19,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:40:19,555 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:40:19,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:40:19,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:40:19,556 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-16 19:40:19,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:40:19,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:40:19,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:40:19,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:40:19,886 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:40:19,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 19:40:19,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/data/973580a18/d48b9dbe804c45ed84c28571ac0d6269/FLAG7d67ae6cb [2022-11-16 19:40:20,733 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:40:20,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 19:40:20,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/data/973580a18/d48b9dbe804c45ed84c28571ac0d6269/FLAG7d67ae6cb [2022-11-16 19:40:20,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/data/973580a18/d48b9dbe804c45ed84c28571ac0d6269 [2022-11-16 19:40:20,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:40:20,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:40:20,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:40:20,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:40:20,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:40:20,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:40:20" (1/1) ... [2022-11-16 19:40:20,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57feffcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:20, skipping insertion in model container [2022-11-16 19:40:20,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:40:20" (1/1) ... [2022-11-16 19:40:20,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:40:21,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:40:21,925 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 19:40:21,959 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 19:40:21,965 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 19:40:21,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:40:21,993 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:40:22,034 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 19:40:22,052 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 19:40:22,056 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_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 19:40:22,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:40:22,195 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:40:22,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22 WrapperNode [2022-11-16 19:40:22,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:40:22,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:40:22,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:40:22,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:40:22,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,372 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1715 [2022-11-16 19:40:22,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:40:22,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:40:22,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:40:22,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:40:22,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:40:22,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:40:22,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:40:22,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:40:22,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (1/1) ... [2022-11-16 19:40:22,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:40:22,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:40:22,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:40:22,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a9ee97-5b30-46ec-8d59-3e0225e0ac89/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:40:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-16 19:40:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-16 19:40:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:40:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:40:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:40:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:40:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 19:40:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:40:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:40:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:40:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:40:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:40:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:40:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:40:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:40:22,653 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 19:40:23,057 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:40:23,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:40:26,186 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:40:26,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:40:26,975 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 19:40:26,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:40:26 BoogieIcfgContainer [2022-11-16 19:40:26,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:40:26,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:40:26,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:40:26,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:40:26,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:40:20" (1/3) ... [2022-11-16 19:40:26,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a099aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:40:26, skipping insertion in model container [2022-11-16 19:40:26,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:40:22" (2/3) ... [2022-11-16 19:40:26,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a099aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:40:26, skipping insertion in model container [2022-11-16 19:40:26,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:40:26" (3/3) ... [2022-11-16 19:40:26,993 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-16 19:40:27,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:40:27,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations. [2022-11-16 19:40:27,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:40:27,335 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 19:40:27,412 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:40:27,437 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2139 places, 2184 transitions, 4376 flow [2022-11-16 19:40:27,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2139 places, 2184 transitions, 4376 flow [2022-11-16 19:40:27,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2139 places, 2184 transitions, 4376 flow [2022-11-16 19:40:29,528 INFO L130 PetriNetUnfolder]: 89/4064 cut-off events. [2022-11-16 19:40:29,529 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 19:40:29,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 4064 events. 89/4064 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22116 event pairs, 0 based on Foata normal form. 0/2992 useless extension candidates. Maximal degree in co-relation 2077. Up to 6 conditions per place. [2022-11-16 19:40:30,001 INFO L119 LiptonReduction]: Number of co-enabled transitions 724224