./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 b5237d83 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_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a --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 Automizer --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 [2022-11-21 09:02:55,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:02:55,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:02:55,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:02:55,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:02:55,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:02:55,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:02:55,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:02:55,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:02:55,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:02:55,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:02:55,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:02:55,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:02:55,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:02:55,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:02:55,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:02:55,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:02:55,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:02:55,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:02:55,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:02:55,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:02:55,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:02:55,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:02:55,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:02:55,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:02:55,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:02:55,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:02:55,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:02:55,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:02:55,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:02:55,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:02:55,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:02:55,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:02:55,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:02:55,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:02:55,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:02:55,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:02:55,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:02:55,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:02:55,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:02:55,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:02:55,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 09:02:55,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:02:55,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:02:55,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:02:55,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:02:55,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:02:55,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:02:55,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:02:55,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:02:55,402 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:02:55,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:02:55,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:02:55,404 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:02:55,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:02:55,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:02:55,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:02:55,405 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 09:02:55,406 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 09:02:55,406 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 09:02:55,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:02:55,406 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:02:55,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:02:55,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:02:55,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:02:55,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:02:55,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:02:55,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:02:55,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:02:55,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:02:55,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:02:55,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:02:55,410 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_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-21 09:02:55,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:02:55,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:02:55,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:02:55,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:02:55,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:02:55,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-21 09:02:59,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:03:00,011 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:03:00,012 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-21 09:03:00,053 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/data/c6928c8b1/6d1827ea24f441e587a48ec5c5f0c08a/FLAG2ca5fb8c3 [2022-11-21 09:03:00,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/data/c6928c8b1/6d1827ea24f441e587a48ec5c5f0c08a [2022-11-21 09:03:00,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:03:00,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:03:00,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:03:00,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:03:00,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:03:00,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:00" (1/1) ... [2022-11-21 09:03:00,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7beb3c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:00, skipping insertion in model container [2022-11-21 09:03:00,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:00" (1/1) ... [2022-11-21 09:03:00,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:03:00,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:03:01,536 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-21 09:03:01,610 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-21 09:03:01,622 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-21 09:03:01,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:03:01,689 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:03:01,786 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-21 09:03:01,806 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-21 09:03:01,810 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_45ed75ac-e1af-4847-aac2-638330156267/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-21 09:03:01,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:03:02,074 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:03:02,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02 WrapperNode [2022-11-21 09:03:02,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:03:02,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:03:02,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:03:02,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:03:02,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,305 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1719 [2022-11-21 09:03:02,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:03:02,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:03:02,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:03:02,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:03:02,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:03:02,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:03:02,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:03:02,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:03:02,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (1/1) ... [2022-11-21 09:03:02,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:03:02,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:02,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:02,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ed75ac-e1af-4847-aac2-638330156267/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:03:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-21 09:03:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-21 09:03:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 09:03:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:03:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 09:03:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:03:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 09:03:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:03:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:03:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:03:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:03:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:03:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:03:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:03:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:03:02,603 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:03:03,191 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:03:03,205 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:03:06,706 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:03:07,613 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:03:07,613 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-21 09:03:07,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:07 BoogieIcfgContainer [2022-11-21 09:03:07,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:03:07,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:03:07,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:03:07,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:03:07,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:00" (1/3) ... [2022-11-21 09:03:07,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309b3e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:07, skipping insertion in model container [2022-11-21 09:03:07,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:02" (2/3) ... [2022-11-21 09:03:07,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309b3e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:07, skipping insertion in model container [2022-11-21 09:03:07,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:07" (3/3) ... [2022-11-21 09:03:07,637 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-21 09:03:07,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:03:07,664 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations. [2022-11-21 09:03:07,664 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:03:08,014 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 09:03:08,094 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 09:03:08,112 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2143 places, 2188 transitions, 4384 flow [2022-11-21 09:03:08,115 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2143 places, 2188 transitions, 4384 flow [2022-11-21 09:03:08,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2143 places, 2188 transitions, 4384 flow [2022-11-21 09:03:10,603 INFO L130 PetriNetUnfolder]: 89/4072 cut-off events. [2022-11-21 09:03:10,604 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 09:03:10,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4078 conditions, 4072 events. 89/4072 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 22105 event pairs, 0 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 2081. Up to 6 conditions per place. [2022-11-21 09:03:11,102 INFO L119 LiptonReduction]: Number of co-enabled transitions 725760 [2022-11-21 09:12:18,591 WARN L233 SmtUtils]: Spent 15.20s on a formula simplification. DAG size of input: 225 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:12:28,249 WARN L233 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:12:44,396 WARN L233 SmtUtils]: Spent 16.14s on a formula simplification. DAG size of input: 224 DAG size of output: 215 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:12:51,825 WARN L233 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:13:20,681 WARN L233 SmtUtils]: Spent 16.05s on a formula simplification. DAG size of input: 219 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:13:31,204 WARN L233 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:13:48,994 WARN L233 SmtUtils]: Spent 17.79s on a formula simplification. DAG size of input: 218 DAG size of output: 213 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:13:57,307 WARN L233 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)