./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --- 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-38b53e6 [2022-11-25 15:45:47,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:45:47,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:45:47,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:45:47,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:45:47,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:45:47,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:45:47,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:45:47,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:45:47,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:45:47,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:45:47,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:45:47,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:45:47,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:45:47,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:45:47,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:45:47,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:45:47,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:45:47,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:45:47,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:45:47,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:45:47,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:45:47,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:45:47,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:45:47,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:45:47,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:45:47,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:45:47,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:45:47,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:45:47,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:45:47,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:45:47,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:45:47,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:45:47,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:45:47,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:45:47,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:45:47,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:45:47,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:45:47,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:45:47,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:45:47,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:45:47,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 15:45:47,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:45:47,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:45:47,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:45:47,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:45:47,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:45:47,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:45:47,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:45:47,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:45:47,361 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:45:47,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:45:47,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:45:47,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:45:47,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:45:47,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:45:47,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:45:47,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:45:47,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:45:47,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:45:47,365 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 15:45:47,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:45:47,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:45:47,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:45:47,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:45:47,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:45:47,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:45:47,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:45:47,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:45:47,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:45:47,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:45:47,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:45:47,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:45:47,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:45:47,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:45:47,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:45:47,370 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:45:47,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:45:47,371 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 [2022-11-25 15:45:47,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:45:47,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:45:47,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:45:47,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:45:47,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:45:47,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-25 15:45:51,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:45:52,118 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:45:52,121 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-25 15:45:52,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/data/d42342bc5/1cbcb5e99def47348f155a34ba6012db/FLAG2b9999657 [2022-11-25 15:45:52,168 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/data/d42342bc5/1cbcb5e99def47348f155a34ba6012db [2022-11-25 15:45:52,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:45:52,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:45:52,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:45:52,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:45:52,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:45:52,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:52" (1/1) ... [2022-11-25 15:45:52,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f80b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:52, skipping insertion in model container [2022-11-25 15:45:52,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:52" (1/1) ... [2022-11-25 15:45:52,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:45:52,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:45:53,261 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-25 15:45:53,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:45:53,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:45:53,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:45:53,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:45:53,345 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-25 15:45:53,353 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-25 15:45:53,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:45:53,387 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:45:53,453 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-25 15:45:53,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:45:53,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:45:53,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:45:53,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:45:53,518 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-25 15:45:53,525 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_b634aa25-757a-44d2-9a23-6ede9e5a6425/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-25 15:45:53,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:45:53,783 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:45:53,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53 WrapperNode [2022-11-25 15:45:53,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:45:53,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:45:53,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:45:53,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:45:53,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:53,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,065 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3187 [2022-11-25 15:45:54,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:45:54,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:45:54,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:45:54,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:45:54,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:45:54,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:45:54,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:45:54,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:45:54,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (1/1) ... [2022-11-25 15:45:54,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:45:54,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:45:54,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:45:54,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b634aa25-757a-44d2-9a23-6ede9e5a6425/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:45:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-25 15:45:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-25 15:45:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:45:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:45:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:45:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:45:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 15:45:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:45:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:45:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:45:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:45:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:45:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:45:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:45:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:45:54,549 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:45:54,972 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:45:54,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:46:00,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:46:02,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:46:02,046 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-25 15:46:02,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:46:02 BoogieIcfgContainer [2022-11-25 15:46:02,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:46:02,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:46:02,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:46:02,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:46:02,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:45:52" (1/3) ... [2022-11-25 15:46:02,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268cb885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:46:02, skipping insertion in model container [2022-11-25 15:46:02,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:53" (2/3) ... [2022-11-25 15:46:02,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268cb885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:46:02, skipping insertion in model container [2022-11-25 15:46:02,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:46:02" (3/3) ... [2022-11-25 15:46:02,066 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-1.i [2022-11-25 15:46:02,078 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:46:02,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:46:02,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-11-25 15:46:02,093 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:46:02,502 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 15:46:02,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:05,685 INFO L130 PetriNetUnfolder]: 89/4485 cut-off events. [2022-11-25 15:46:05,686 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:46:05,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 4485 events. 89/4485 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 23281 event pairs, 0 based on Foata normal form. 0/3911 useless extension candidates. Maximal degree in co-relation 2289. Up to 6 conditions per place. [2022-11-25 15:46:05,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:05,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:05,812 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:46:05,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:05,837 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:05,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2370 places, 2415 transitions, 4838 flow [2022-11-25 15:46:08,218 INFO L130 PetriNetUnfolder]: 89/4485 cut-off events. [2022-11-25 15:46:08,218 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:46:08,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 4485 events. 89/4485 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 23281 event pairs, 0 based on Foata normal form. 0/3911 useless extension candidates. Maximal degree in co-relation 2289. Up to 6 conditions per place. [2022-11-25 15:46:08,681 INFO L119 LiptonReduction]: Number of co-enabled transitions 888528 [2022-11-25 15:47:59,433 WARN L233 SmtUtils]: Spent 17.64s 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) [2022-11-25 15:48:07,989 WARN L233 SmtUtils]: Spent 8.55s 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) [2022-11-25 15:48:34,522 WARN L233 SmtUtils]: Spent 26.53s 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) [2022-11-25 15:48:45,101 WARN L233 SmtUtils]: Spent 10.58s 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) [2022-11-25 15:49:21,673 WARN L233 SmtUtils]: Spent 20.82s 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) [2022-11-25 15:49:31,088 WARN L233 SmtUtils]: Spent 9.41s 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) [2022-11-25 15:49:56,327 WARN L233 SmtUtils]: Spent 25.24s 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) [2022-11-25 15:50:08,322 WARN L233 SmtUtils]: Spent 11.99s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:51:16,846 WARN L233 SmtUtils]: Spent 17.60s 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) [2022-11-25 15:51:26,312 WARN L233 SmtUtils]: Spent 9.47s 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) [2022-11-25 15:51:50,790 WARN L233 SmtUtils]: Spent 24.48s 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) [2022-11-25 15:52:03,733 WARN L233 SmtUtils]: Spent 12.94s 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) [2022-11-25 15:52:37,142 WARN L233 SmtUtils]: Spent 17.25s 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) [2022-11-25 15:52:47,106 WARN L233 SmtUtils]: Spent 9.96s 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) [2022-11-25 15:53:11,737 WARN L233 SmtUtils]: Spent 24.63s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:53:22,418 WARN L233 SmtUtils]: Spent 10.68s 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) [2022-11-25 15:53:51,883 WARN L233 SmtUtils]: Spent 18.34s 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) [2022-11-25 15:54:00,109 WARN L233 SmtUtils]: Spent 8.22s 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) [2022-11-25 15:54:23,457 WARN L233 SmtUtils]: Spent 23.35s 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) [2022-11-25 15:54:34,111 WARN L233 SmtUtils]: Spent 10.65s 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) [2022-11-25 15:56:20,348 WARN L233 SmtUtils]: Spent 16.67s 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) [2022-11-25 15:56:28,538 WARN L233 SmtUtils]: Spent 8.19s 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) [2022-11-25 15:56:52,335 WARN L233 SmtUtils]: Spent 23.80s 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) [2022-11-25 15:57:02,931 WARN L233 SmtUtils]: Spent 10.59s 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) [2022-11-25 15:59:22,506 WARN L233 SmtUtils]: Spent 20.09s 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) [2022-11-25 15:59:33,236 WARN L233 SmtUtils]: Spent 10.73s 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) [2022-11-25 15:59:57,250 WARN L233 SmtUtils]: Spent 24.01s 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) [2022-11-25 16:00:11,798 WARN L233 SmtUtils]: Spent 14.55s 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) [2022-11-25 16:00:31,670 WARN L233 SmtUtils]: Spent 18.85s 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) [2022-11-25 16:00:41,416 WARN L233 SmtUtils]: Spent 9.75s 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)