./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_longer.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_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/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_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/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_3c9291bf-7fd8-410f-99d0-204b577278a8/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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- 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 10:57:38,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:57:38,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:57:38,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:57:38,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:57:38,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:57:38,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:57:38,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:57:38,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:57:38,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:57:38,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:57:38,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:57:38,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:57:38,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:57:38,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:57:38,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:57:38,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:57:38,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:57:38,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:57:38,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:57:38,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:57:38,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:57:38,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:57:38,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:57:38,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:57:38,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:57:38,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:57:38,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:57:38,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:57:38,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:57:38,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:57:38,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:57:38,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:57:38,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:57:38,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:57:38,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:57:38,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:57:38,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:57:38,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:57:38,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:57:38,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:57:38,614 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:57:38,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:57:38,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:57:38,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:57:38,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:57:38,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:57:38,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:57:38,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:57:38,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:57:38,659 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:57:38,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:57:38,660 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:57:38,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:57:38,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:57:38,662 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:57:38,662 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:57:38,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:57:38,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:57:38,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:57:38,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:57:38,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:57:38,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:57:38,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:38,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:57:38,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:57:38,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:57:38,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:57:38,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:57:38,667 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:57:38,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:57:38,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:57:38,667 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_3c9291bf-7fd8-410f-99d0-204b577278a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-11-16 10:57:38,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:57:38,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:57:38,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:57:38,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:57:38,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:57:38,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread/queue_longer.i [2022-11-16 10:57:39,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/data/6cda2ba8f/7b3206eb8c4e4731bd4e157fe44d29af/FLAGa0479e53d [2022-11-16 10:57:39,616 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:57:39,616 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i [2022-11-16 10:57:39,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/data/6cda2ba8f/7b3206eb8c4e4731bd4e157fe44d29af/FLAGa0479e53d [2022-11-16 10:57:39,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/data/6cda2ba8f/7b3206eb8c4e4731bd4e157fe44d29af [2022-11-16 10:57:39,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:57:39,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:57:39,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:39,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:57:39,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:57:39,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:39" (1/1) ... [2022-11-16 10:57:39,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65acf2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:39, skipping insertion in model container [2022-11-16 10:57:39,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:39" (1/1) ... [2022-11-16 10:57:39,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:57:39,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:57:40,455 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-16 10:57:40,459 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-16 10:57:40,462 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-16 10:57:40,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:40,488 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:57:40,576 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-16 10:57:40,578 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-16 10:57:40,580 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_3c9291bf-7fd8-410f-99d0-204b577278a8/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-16 10:57:40,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:40,637 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:57:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40 WrapperNode [2022-11-16 10:57:40,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:40,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:40,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:57:40,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:57:40,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,751 INFO L138 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 483 [2022-11-16 10:57:40,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:40,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:57:40,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:57:40,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:57:40,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:57:40,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:57:40,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:57:40,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:57:40,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (1/1) ... [2022-11-16 10:57:40,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:40,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:57:40,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9291bf-7fd8-410f-99d0-204b577278a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:57:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 10:57:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 10:57:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 10:57:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 10:57:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:57:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:57:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:57:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:57:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:57:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:57:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:57:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:57:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:57:40,974 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 10:57:41,186 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:57:41,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:57:42,099 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:57:42,109 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:57:42,110 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 10:57:42,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:42 BoogieIcfgContainer [2022-11-16 10:57:42,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:57:42,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:57:42,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:57:42,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:57:42,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:57:39" (1/3) ... [2022-11-16 10:57:42,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9b8b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:42, skipping insertion in model container [2022-11-16 10:57:42,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:40" (2/3) ... [2022-11-16 10:57:42,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9b8b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:42, skipping insertion in model container [2022-11-16 10:57:42,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:42" (3/3) ... [2022-11-16 10:57:42,122 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-11-16 10:57:42,130 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:57:42,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:57:42,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-16 10:57:42,141 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:57:42,388 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 10:57:42,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-11-16 10:57:42,803 INFO L130 PetriNetUnfolder]: 15/553 cut-off events. [2022-11-16 10:57:42,803 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 10:57:42,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 790 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-16 10:57:42,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 547 places, 555 transitions, 1126 flow [2022-11-16 10:57:42,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 535 places, 543 transitions, 1095 flow [2022-11-16 10:57:42,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:57:42,862 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;@329de82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:57:42,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-16 10:57:42,869 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-16 10:57:42,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:57:42,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:42,870 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] [2022-11-16 10:57:42,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 10:57:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash 515812714, now seen corresponding path program 1 times [2022-11-16 10:57:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:42,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181274888] [2022-11-16 10:57:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:42,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:43,226 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 10:57:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:43,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181274888] [2022-11-16 10:57:43,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181274888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:43,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:43,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:43,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390580892] [2022-11-16 10:57:43,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:43,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:43,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:43,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:43,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:43,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-11-16 10:57:43,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 543 transitions, 1095 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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 10:57:43,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:43,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-11-16 10:57:43,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:43,860 INFO L130 PetriNetUnfolder]: 59/1327 cut-off events. [2022-11-16 10:57:43,861 INFO L131 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2022-11-16 10:57:43,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1327 events. 59/1327 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5629 event pairs, 27 based on Foata normal form. 23/1185 useless extension candidates. Maximal degree in co-relation 1149. Up to 79 conditions per place. [2022-11-16 10:57:43,878 INFO L137 encePairwiseOnDemand]: 547/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/532 dead transitions. [2022-11-16 10:57:43,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 532 transitions, 1107 flow [2022-11-16 10:57:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2022-11-16 10:57:43,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9633633633633634 [2022-11-16 10:57:43,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2022-11-16 10:57:43,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2022-11-16 10:57:43,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:43,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2022-11-16 10:57:43,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 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 10:57:43,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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 10:57:43,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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 10:57:43,930 INFO L175 Difference]: Start difference. First operand has 535 places, 543 transitions, 1095 flow. Second operand 3 states and 1604 transitions. [2022-11-16 10:57:43,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 532 transitions, 1107 flow [2022-11-16 10:57:43,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 532 transitions, 1102 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 10:57:43,947 INFO L231 Difference]: Finished difference. Result has 528 places, 532 transitions, 1072 flow [2022-11-16 10:57:43,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=528, PETRI_TRANSITIONS=532} [2022-11-16 10:57:43,954 INFO L288 CegarLoopForPetriNet]: 535 programPoint places, -7 predicate places. [2022-11-16 10:57:43,954 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 532 transitions, 1072 flow [2022-11-16 10:57:43,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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 10:57:43,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:43,956 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] [2022-11-16 10:57:43,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:57:43,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 10:57:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2122868211, now seen corresponding path program 1 times [2022-11-16 10:57:43,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:43,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26637790] [2022-11-16 10:57:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:43,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:44,077 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 10:57:44,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:44,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26637790] [2022-11-16 10:57:44,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26637790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:44,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:44,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:44,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740621918] [2022-11-16 10:57:44,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:44,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:44,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:44,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:44,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:44,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-11-16 10:57:44,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 532 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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 10:57:44,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:44,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-11-16 10:57:44,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:44,710 INFO L130 PetriNetUnfolder]: 71/1704 cut-off events. [2022-11-16 10:57:44,711 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-16 10:57:44,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1704 events. 71/1704 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6867 event pairs, 27 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 1762. Up to 85 conditions per place. [2022-11-16 10:57:44,734 INFO L137 encePairwiseOnDemand]: 552/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/531 dead transitions. [2022-11-16 10:57:44,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 531 transitions, 1104 flow [2022-11-16 10:57:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1599 transitions. [2022-11-16 10:57:44,740 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9603603603603603 [2022-11-16 10:57:44,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1599 transitions. [2022-11-16 10:57:44,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1599 transitions. [2022-11-16 10:57:44,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:44,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1599 transitions. [2022-11-16 10:57:44,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 533.0) internal successors, (1599), 3 states have internal predecessors, (1599), 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 10:57:44,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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 10:57:44,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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 10:57:44,752 INFO L175 Difference]: Start difference. First operand has 528 places, 532 transitions, 1072 flow. Second operand 3 states and 1599 transitions. [2022-11-16 10:57:44,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 531 transitions, 1104 flow [2022-11-16 10:57:44,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 531 transitions, 1100 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:44,765 INFO L231 Difference]: Finished difference. Result has 527 places, 531 transitions, 1070 flow [2022-11-16 10:57:44,766 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1070, PETRI_PLACES=527, PETRI_TRANSITIONS=531} [2022-11-16 10:57:44,768 INFO L288 CegarLoopForPetriNet]: 535 programPoint places, -8 predicate places. [2022-11-16 10:57:44,768 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 531 transitions, 1070 flow [2022-11-16 10:57:44,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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 10:57:44,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:44,769 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 10:57:44,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:57:44,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 10:57:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash 654891734, now seen corresponding path program 1 times [2022-11-16 10:57:44,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:44,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070852903] [2022-11-16 10:57:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:45,371 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 10:57:45,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:45,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070852903] [2022-11-16 10:57:45,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070852903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:45,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:45,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:45,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084115505] [2022-11-16 10:57:45,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:45,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:45,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:45,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:45,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:45,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 555 [2022-11-16 10:57:45,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 531 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 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 10:57:45,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:45,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 555 [2022-11-16 10:57:45,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand