./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 8393723b 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 08:29:07,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:29:07,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:29:07,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:29:07,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:29:07,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:29:07,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:29:07,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:29:07,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:29:07,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:29:07,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:29:07,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:29:07,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:29:07,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:29:07,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:29:07,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:29:07,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:29:07,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:29:07,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:29:07,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:29:07,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:29:07,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:29:07,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:29:07,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:29:07,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:29:07,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:29:07,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:29:07,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:29:07,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:29:07,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:29:07,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:29:07,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:29:07,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:29:07,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:29:07,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:29:07,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:29:07,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:29:07,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:29:07,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:29:07,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:29:07,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:29:07,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 08:29:07,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:29:07,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:29:07,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:29:07,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:29:07,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:29:07,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:29:07,322 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:29:07,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:29:07,322 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:29:07,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:29:07,324 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:29:07,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:29:07,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:29:07,325 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:29:07,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:29:07,325 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:29:07,326 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:29:07,326 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:29:07,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:29:07,327 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:29:07,327 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:29:07,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:29:07,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:29:07,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:29:07,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:29:07,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:29:07,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:29:07,330 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 08:29:07,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:29:07,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:29:07,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:29:07,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:29:07,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:29:07,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:29:07,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:07,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:29:07,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:29:07,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:29:07,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:29:07,333 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:29:07,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:29:07,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:29:07,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:29:07,334 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 [2022-11-19 08:29:07,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:29:07,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:29:07,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:29:07,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:29:07,675 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:29:07,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-19 08:29:07,753 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/data/ec6d11ce3/62a374fcd3f946a99a55c6deb76a9eba/FLAGaf7f026e8 [2022-11-19 08:29:08,413 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:29:08,414 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i [2022-11-19 08:29:08,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/data/ec6d11ce3/62a374fcd3f946a99a55c6deb76a9eba/FLAGaf7f026e8 [2022-11-19 08:29:08,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/data/ec6d11ce3/62a374fcd3f946a99a55c6deb76a9eba [2022-11-19 08:29:08,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:29:08,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:29:08,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:08,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:29:08,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:29:08,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:08" (1/1) ... [2022-11-19 08:29:08,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74087d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:08, skipping insertion in model container [2022-11-19 08:29:08,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:08" (1/1) ... [2022-11-19 08:29:08,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:29:08,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:29:09,509 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-19 08:29:09,552 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-19 08:29:09,558 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-19 08:29:09,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:09,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:29:09,634 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-11-19 08:29:09,662 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-11-19 08:29:09,668 WARN L234 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_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-11-19 08:29:09,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:09,834 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:29:09,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09 WrapperNode [2022-11-19 08:29:09,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:09,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:09,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:29:09,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:29:09,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:09,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,050 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3183 [2022-11-19 08:29:10,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:10,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:29:10,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:29:10,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:29:10,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:29:10,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:29:10,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:29:10,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:29:10,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (1/1) ... [2022-11-19 08:29:10,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:10,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:10,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:29:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986ba9eb-8ee5-4c2c-a53b-16368d263cf4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:29:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-19 08:29:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-19 08:29:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:29:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:29:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:29:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:29:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:29:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:29:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:29:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:29:10,518 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:29:10,942 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:29:10,944 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:29:15,162 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:29:16,771 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:29:16,772 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:29:16,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:16 BoogieIcfgContainer [2022-11-19 08:29:16,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:29:16,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:29:16,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:29:16,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:29:16,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:29:08" (1/3) ... [2022-11-19 08:29:16,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541285e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:16, skipping insertion in model container [2022-11-19 08:29:16,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:09" (2/3) ... [2022-11-19 08:29:16,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541285e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:16, skipping insertion in model container [2022-11-19 08:29:16,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:16" (3/3) ... [2022-11-19 08:29:16,786 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-1.i [2022-11-19 08:29:16,797 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:29:16,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:29:16,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-11-19 08:29:16,808 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:29:17,173 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 08:29:17,250 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:29:17,271 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:29:17,276 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:29:17,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2366 places, 2411 transitions, 4830 flow [2022-11-19 08:29:20,012 INFO L130 PetriNetUnfolder]: 89/4477 cut-off events. [2022-11-19 08:29:20,012 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 08:29:20,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 4477 events. 89/4477 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 23199 event pairs, 0 based on Foata normal form. 0/3903 useless extension candidates. Maximal degree in co-relation 2285. Up to 6 conditions per place. [2022-11-19 08:29:20,444 INFO L119 LiptonReduction]: Number of co-enabled transitions 886816 [2022-11-19 08:31:06,839 WARN L233 SmtUtils]: Spent 16.34s 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) [2022-11-19 08:31:14,108 WARN L233 SmtUtils]: Spent 7.27s 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) [2022-11-19 08:31:30,691 WARN L233 SmtUtils]: Spent 16.58s 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) [2022-11-19 08:31:39,098 WARN L233 SmtUtils]: Spent 8.41s 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) [2022-11-19 08:32:10,996 WARN L233 SmtUtils]: Spent 15.40s 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) [2022-11-19 08:32:17,233 WARN L233 SmtUtils]: Spent 6.24s 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) [2022-11-19 08:32:37,009 WARN L233 SmtUtils]: Spent 19.75s 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) [2022-11-19 08:32:47,317 WARN L233 SmtUtils]: Spent 10.31s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:33:51,300 WARN L233 SmtUtils]: Spent 15.10s 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) [2022-11-19 08:33:57,934 WARN L233 SmtUtils]: Spent 6.63s 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) [2022-11-19 08:34:16,885 WARN L233 SmtUtils]: Spent 18.95s 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) [2022-11-19 08:34:26,063 WARN L233 SmtUtils]: Spent 9.18s 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) [2022-11-19 08:34:56,385 WARN L233 SmtUtils]: Spent 16.38s 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) [2022-11-19 08:35:03,666 WARN L233 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:35:26,289 WARN L233 SmtUtils]: Spent 22.62s 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) [2022-11-19 08:35:35,027 WARN L233 SmtUtils]: Spent 8.74s 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) [2022-11-19 08:36:01,593 WARN L233 SmtUtils]: Spent 14.33s 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) [2022-11-19 08:36:07,813 WARN L233 SmtUtils]: Spent 6.22s 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) [2022-11-19 08:36:27,576 WARN L233 SmtUtils]: Spent 19.76s 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) [2022-11-19 08:36:36,213 WARN L233 SmtUtils]: Spent 8.64s 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) [2022-11-19 08:38:26,912 WARN L233 SmtUtils]: Spent 16.14s 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) [2022-11-19 08:38:34,738 WARN L233 SmtUtils]: Spent 7.83s 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) [2022-11-19 08:38:56,311 WARN L233 SmtUtils]: Spent 21.57s 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) [2022-11-19 08:39:05,574 WARN L233 SmtUtils]: Spent 9.26s 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) [2022-11-19 08:41:18,212 WARN L233 SmtUtils]: Spent 17.91s 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) [2022-11-19 08:41:27,810 WARN L233 SmtUtils]: Spent 9.60s 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) [2022-11-19 08:41:50,744 WARN L233 SmtUtils]: Spent 22.93s 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) [2022-11-19 08:42:02,989 WARN L233 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 08:42:21,594 WARN L233 SmtUtils]: Spent 17.42s 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) [2022-11-19 08:42:29,912 WARN L233 SmtUtils]: Spent 8.32s 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) [2022-11-19 08:42:54,484 WARN L233 SmtUtils]: Spent 24.57s 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) [2022-11-19 08:43:06,248 WARN L233 SmtUtils]: Spent 11.76s 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) [2022-11-19 08:44:12,731 WARN L233 SmtUtils]: Spent 18.58s 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) [2022-11-19 08:44:21,694 WARN L233 SmtUtils]: Spent 8.96s 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)