./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix004.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix004.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8 --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 81dfcecae183e47a2274a923e55daf761c46d6146ab2c58970ae115599afe231 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:49:00,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:49:00,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:49:00,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:49:00,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:49:00,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:49:00,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:49:00,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:49:00,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:49:00,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:49:00,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:49:00,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:49:00,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:49:00,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:49:00,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:49:00,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:49:00,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:49:00,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:49:00,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:49:00,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:49:00,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:49:00,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:49:00,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:49:00,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:49:00,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:49:00,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:49:00,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:49:00,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:49:00,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:49:00,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:49:00,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:49:00,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:49:00,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:49:00,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:49:00,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:49:00,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:49:00,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:49:00,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:49:00,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:49:00,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:49:00,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:49:00,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:49:00,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:49:00,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:49:00,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:49:00,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:49:00,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:49:00,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:49:00,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:49:00,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:49:00,614 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:49:00,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:49:00,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:49:00,615 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:49:00,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:49:00,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:49:00,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:49:00,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:49:00,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:49:00,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:49:00,617 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:49:00,617 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:49:00,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:49:00,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:49:00,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:49:00,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:49:00,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:49:00,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:49:00,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:00,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:49:00,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:49:00,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:49:00,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:49:00,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:49:00,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:49:00,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:49:00,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:49:00,621 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_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dfcecae183e47a2274a923e55daf761c46d6146ab2c58970ae115599afe231 [2022-11-16 12:49:00,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:49:00,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:49:00,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:49:00,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:49:00,948 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:49:00,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix004.oepc.i [2022-11-16 12:49:01,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/data/b3a826b60/b4cab822dcb04f58ab75c337a013f540/FLAGd1d9266d0 [2022-11-16 12:49:01,537 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:49:01,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/sv-benchmarks/c/pthread-wmm/mix004.oepc.i [2022-11-16 12:49:01,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/data/b3a826b60/b4cab822dcb04f58ab75c337a013f540/FLAGd1d9266d0 [2022-11-16 12:49:01,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/data/b3a826b60/b4cab822dcb04f58ab75c337a013f540 [2022-11-16 12:49:01,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:49:01,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:49:01,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:01,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:49:01,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:49:01,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:01" (1/1) ... [2022-11-16 12:49:01,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcab06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:01, skipping insertion in model container [2022-11-16 12:49:01,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:01" (1/1) ... [2022-11-16 12:49:01,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:49:01,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:49:02,200 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/sv-benchmarks/c/pthread-wmm/mix004.oepc.i[945,958] [2022-11-16 12:49:02,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:02,483 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:49:02,499 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/sv-benchmarks/c/pthread-wmm/mix004.oepc.i[945,958] [2022-11-16 12:49:02,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:02,600 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:49:02,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02 WrapperNode [2022-11-16 12:49:02,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:02,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:02,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:49:02,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:49:02,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,704 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 527 [2022-11-16 12:49:02,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:02,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:49:02,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:49:02,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:49:02,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:49:02,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:49:02,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:49:02,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:49:02,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (1/1) ... [2022-11-16 12:49:02,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:02,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:02,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:49:02,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c99b3-e280-4720-9451-10f36f40f9df/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:49:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:49:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:49:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:49:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:49:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:49:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:49:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:49:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:49:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:49:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:49:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:49:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 12:49:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 12:49:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:49:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:49:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:49:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:49:02,886 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:49:03,144 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:49:03,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:49:04,749 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:49:26,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:49:26,675 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:49:26,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:26 BoogieIcfgContainer [2022-11-16 12:49:26,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:49:26,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:49:26,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:49:26,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:49:26,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:49:01" (1/3) ... [2022-11-16 12:49:26,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93329a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:26, skipping insertion in model container [2022-11-16 12:49:26,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:02" (2/3) ... [2022-11-16 12:49:26,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93329a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:26, skipping insertion in model container [2022-11-16 12:49:26,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:26" (3/3) ... [2022-11-16 12:49:26,687 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.oepc.i [2022-11-16 12:49:26,697 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:49:26,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:49:26,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 287 error locations. [2022-11-16 12:49:26,707 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:49:32,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:49:32,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 430 transitions, 880 flow [2022-11-16 12:49:34,308 INFO L130 PetriNetUnfolder]: 2/426 cut-off events. [2022-11-16 12:49:34,308 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:34,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 426 events. 2/426 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2228 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 382. Up to 2 conditions per place. [2022-11-16 12:49:34,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 430 transitions, 880 flow [2022-11-16 12:49:34,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 437 places, 426 transitions, 864 flow [2022-11-16 12:49:34,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:34,361 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;@53f20cd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:34,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 539 error locations. [2022-11-16 12:49:34,369 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-16 12:49:34,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:49:34,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:49:34,370 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:34,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 535 more)] === [2022-11-16 12:49:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:34,377 INFO L85 PathProgramCache]: Analyzing trace with hash 649057241, now seen corresponding path program 1 times [2022-11-16 12:49:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:34,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304106709] [2022-11-16 12:49:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:49:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:34,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304106709] [2022-11-16 12:49:34,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304106709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:34,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:34,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:49:34,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140839694] [2022-11-16 12:49:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:34,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:49:34,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:35,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:49:35,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:49:35,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 430 [2022-11-16 12:49:35,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 426 transitions, 864 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2022-11-16 12:49:35,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:49:35,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 430 [2022-11-16 12:49:35,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand