./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8 --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 f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --- 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-2329fc7 [2022-12-13 20:18:50,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:18:50,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:18:50,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:18:50,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:18:50,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:18:50,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:18:50,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:18:50,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:18:50,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:18:50,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:18:50,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:18:50,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:18:50,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:18:50,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:18:50,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:18:50,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:18:50,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:18:50,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:18:50,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:18:50,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:18:50,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:18:50,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:18:50,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:18:50,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:18:50,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:18:50,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:18:50,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:18:50,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:18:50,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:18:50,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:18:50,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:18:50,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:18:50,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:18:50,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:18:50,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:18:50,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:18:50,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:18:50,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:18:50,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:18:50,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:18:50,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:18:50,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:18:50,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:18:50,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:18:50,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:18:50,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:18:50,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:18:50,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:18:50,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:18:50,409 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:18:50,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:18:50,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:18:50,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:18:50,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:18:50,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:18:50,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:18:50,413 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:18:50,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:18:50,413 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:18:50,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:18:50,413 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:18:50,413 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_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab [2022-12-13 20:18:50,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:18:50,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:18:50,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:18:50,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:18:50,601 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:18:50,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2022-12-13 20:18:53,205 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:18:53,382 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:18:53,383 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2022-12-13 20:18:53,392 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/data/8aefd45ee/2bead7ba95184971b2782141c8b4c28b/FLAGe80390c64 [2022-12-13 20:18:53,402 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/data/8aefd45ee/2bead7ba95184971b2782141c8b4c28b [2022-12-13 20:18:53,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:18:53,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:18:53,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:18:53,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:18:53,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:18:53,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580d45f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53, skipping insertion in model container [2022-12-13 20:18:53,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:18:53,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:18:53,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:18:53,746 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:18:53,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:18:53,805 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:18:53,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53 WrapperNode [2022-12-13 20:18:53,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:18:53,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:18:53,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:18:53,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:18:53,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,836 INFO L138 Inliner]: procedures = 263, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-12-13 20:18:53,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:18:53,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:18:53,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:18:53,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:18:53,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:18:53,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:18:53,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:18:53,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:18:53,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (1/1) ... [2022-12-13 20:18:53,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:18:53,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:18:53,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:18:53,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:18:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:18:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 20:18:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 20:18:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:18:53,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:18:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:18:53,923 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:18:54,026 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:18:54,028 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:18:54,182 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:18:54,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:18:54,189 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:18:54,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:18:54 BoogieIcfgContainer [2022-12-13 20:18:54,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:18:54,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:18:54,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:18:54,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:18:54,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:18:53" (1/3) ... [2022-12-13 20:18:54,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb66991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:18:54, skipping insertion in model container [2022-12-13 20:18:54,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:18:53" (2/3) ... [2022-12-13 20:18:54,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb66991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:18:54, skipping insertion in model container [2022-12-13 20:18:54,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:18:54" (3/3) ... [2022-12-13 20:18:54,200 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2022-12-13 20:18:54,209 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:18:54,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:18:54,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-13 20:18:54,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:18:54,268 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 20:18:54,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 190 flow [2022-12-13 20:18:54,344 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-12-13 20:18:54,344 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:18:54,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 0/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 20:18:54,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 91 transitions, 190 flow [2022-12-13 20:18:54,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 167 flow [2022-12-13 20:18:54,354 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:18:54,362 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 167 flow [2022-12-13 20:18:54,364 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 167 flow [2022-12-13 20:18:54,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 167 flow [2022-12-13 20:18:54,391 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-12-13 20:18:54,391 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:18:54,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 20:18:54,392 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2022-12-13 20:18:56,523 INFO L134 LiptonReduction]: Checked pairs total: 3426 [2022-12-13 20:18:56,523 INFO L136 LiptonReduction]: Total number of compositions: 61 [2022-12-13 20:18:56,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:18:56,544 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38ade9bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:18:56,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 20:18:56,547 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 20:18:56,548 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:18:56,548 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:18:56,548 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:18:56,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 20:18:56,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:18:56,553 INFO L85 PathProgramCache]: Analyzing trace with hash 275811124, now seen corresponding path program 1 times [2022-12-13 20:18:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:18:56,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588549506] [2022-12-13 20:18:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:18:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:18:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:18:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:18:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:18:56,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588549506] [2022-12-13 20:18:56,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588549506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:18:56,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:18:56,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:18:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915112404] [2022-12-13 20:18:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:18:56,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:18:56,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:18:56,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:18:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:18:56,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 152 [2022-12-13 20:18:56,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:18:56,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 152 [2022-12-13 20:18:56,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:18:56,846 INFO L130 PetriNetUnfolder]: 48/149 cut-off events. [2022-12-13 20:18:56,846 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:18:56,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 149 events. 48/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 579 event pairs, 17 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 266. Up to 87 conditions per place. [2022-12-13 20:18:56,849 INFO L137 encePairwiseOnDemand]: 142/152 looper letters, 20 selfloop transitions, 6 changer transitions 1/31 dead transitions. [2022-12-13 20:18:56,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 31 transitions, 119 flow [2022-12-13 20:18:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:18:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:18:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2022-12-13 20:18:56,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5899122807017544 [2022-12-13 20:18:56,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2022-12-13 20:18:56,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2022-12-13 20:18:56,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:18:56,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2022-12-13 20:18:56,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,869 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 3 states and 269 transitions. [2022-12-13 20:18:56,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 31 transitions, 119 flow [2022-12-13 20:18:56,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:18:56,872 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 92 flow [2022-12-13 20:18:56,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2022-12-13 20:18:56,876 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2022-12-13 20:18:56,876 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 92 flow [2022-12-13 20:18:56,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:18:56,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:18:56,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:18:56,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 20:18:56,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:18:56,878 INFO L85 PathProgramCache]: Analyzing trace with hash 417006121, now seen corresponding path program 1 times [2022-12-13 20:18:56,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:18:56,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767990750] [2022-12-13 20:18:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:18:56,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:18:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:18:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:18:56,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:18:56,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767990750] [2022-12-13 20:18:56,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767990750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:18:56,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:18:56,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:18:56,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860509180] [2022-12-13 20:18:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:18:56,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:18:56,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:18:56,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:18:56,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:18:56,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 152 [2022-12-13 20:18:56,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:18:56,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 152 [2022-12-13 20:18:56,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:18:56,985 INFO L130 PetriNetUnfolder]: 57/166 cut-off events. [2022-12-13 20:18:56,985 INFO L131 PetriNetUnfolder]: For 60/63 co-relation queries the response was YES. [2022-12-13 20:18:56,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 166 events. 57/166 cut-off events. For 60/63 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 643 event pairs, 22 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 382. Up to 102 conditions per place. [2022-12-13 20:18:56,986 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 16 selfloop transitions, 5 changer transitions 8/36 dead transitions. [2022-12-13 20:18:56,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 186 flow [2022-12-13 20:18:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:18:56,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:18:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-12-13 20:18:56,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5855263157894737 [2022-12-13 20:18:56,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-12-13 20:18:56,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-12-13 20:18:56,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:18:56,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-12-13 20:18:56,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,990 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,990 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 92 flow. Second operand 3 states and 267 transitions. [2022-12-13 20:18:56,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 186 flow [2022-12-13 20:18:56,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:18:56,992 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 112 flow [2022-12-13 20:18:56,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2022-12-13 20:18:56,993 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2022-12-13 20:18:56,993 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 112 flow [2022-12-13 20:18:56,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:56,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:18:56,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:18:56,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:18:56,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 20:18:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:18:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -497203900, now seen corresponding path program 1 times [2022-12-13 20:18:56,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:18:56,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414575200] [2022-12-13 20:18:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:18:56,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:18:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:18:57,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:18:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:18:57,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:18:57,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:18:57,038 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-12-13 20:18:57,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-12-13 20:18:57,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-12-13 20:18:57,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:18:57,041 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 20:18:57,046 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:18:57,046 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:18:57,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:18:57 BasicIcfg [2022-12-13 20:18:57,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:18:57,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:18:57,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:18:57,066 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:18:57,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:18:54" (3/4) ... [2022-12-13 20:18:57,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:18:57,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:18:57,070 INFO L158 Benchmark]: Toolchain (without parser) took 3664.90ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 110.5MB in the beginning and 92.3MB in the end (delta: 18.2MB). Peak memory consumption was 129.7MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,071 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:18:57,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.35ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 83.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.95ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 80.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,072 INFO L158 Benchmark]: Boogie Preprocessor took 18.27ms. Allocated memory is still 151.0MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,073 INFO L158 Benchmark]: RCFGBuilder took 335.92ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 64.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,073 INFO L158 Benchmark]: TraceAbstraction took 2871.42ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 64.4MB in the beginning and 92.3MB in the end (delta: -27.9MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2022-12-13 20:18:57,074 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 260.0MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:18:57,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.35ms. Allocated memory is still 151.0MB. Free memory was 110.5MB in the beginning and 83.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.95ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 80.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.27ms. Allocated memory is still 151.0MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.92ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 64.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2871.42ms. Allocated memory was 151.0MB in the beginning and 260.0MB in the end (delta: 109.1MB). Free memory was 64.4MB in the beginning and 92.3MB in the end (delta: -27.9MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 260.0MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 86 PlacesBefore, 27 PlacesAfterwards, 82 TransitionsBefore, 23 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 3426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1616, independent: 1377, independent conditional: 0, independent unconditional: 1377, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 514, independent: 475, independent conditional: 0, independent unconditional: 475, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1616, independent: 902, independent conditional: 0, independent unconditional: 902, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 514, unknown conditional: 0, unknown unconditional: 514] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L931] 0 pthread_t id; [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 13 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 20:18:57,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_567c6ddc-f171-4d0e-b466-4eb86393d045/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE