./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:38:55,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:38:55,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:38:55,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:38:55,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:38:55,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:38:55,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:38:55,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:38:55,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:38:55,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:38:55,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:38:55,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:38:55,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:38:55,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:38:55,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:38:55,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:38:55,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:38:55,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:38:55,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:38:55,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:38:55,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:38:55,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:38:55,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:38:55,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:38:55,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:38:55,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:38:55,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:38:55,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:38:55,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:38:55,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:38:55,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:38:55,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:38:55,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:38:55,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:38:55,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:38:55,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:38:55,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:38:55,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:38:55,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:38:55,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:38:55,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:38:55,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:38:55,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:38:55,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:38:55,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:38:55,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:38:55,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:38:55,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:38:55,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:38:55,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:38:55,925 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:38:55,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:38:55,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:38:55,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:38:55,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:38:55,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:38:55,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:38:55,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:38:55,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:38:55,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:38:55,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:38:55,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:38:55,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:38:55,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:38:55,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:38:55,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:38:55,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:38:55,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:38:55,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:38:55,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:38:55,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:38:55,931 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:38:55,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:38:55,931 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_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2022-11-25 17:38:56,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:38:56,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:38:56,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:38:56,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:38:56,276 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:38:56,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/queue.i [2022-11-25 17:38:59,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:38:59,595 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:38:59,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i [2022-11-25 17:38:59,610 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/data/4f043124e/6395e77cf148464ca40e226b8fb2b09a/FLAGad9dd23b1 [2022-11-25 17:38:59,625 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/data/4f043124e/6395e77cf148464ca40e226b8fb2b09a [2022-11-25 17:38:59,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:38:59,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:38:59,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:38:59,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:38:59,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:38:59,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:38:59" (1/1) ... [2022-11-25 17:38:59,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e6cf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:59, skipping insertion in model container [2022-11-25 17:38:59,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:38:59" (1/1) ... [2022-11-25 17:38:59,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:38:59,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:39:00,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-25 17:39:00,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-25 17:39:00,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-25 17:39:00,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:39:00,362 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:39:00,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-25 17:39:00,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-25 17:39:00,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-25 17:39:00,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:39:00,480 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:39:00,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00 WrapperNode [2022-11-25 17:39:00,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:39:00,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:39:00,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:39:00,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:39:00,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,591 INFO L138 Inliner]: procedures = 274, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 490 [2022-11-25 17:39:00,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:39:00,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:39:00,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:39:00,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:39:00,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:39:00,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:39:00,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:39:00,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:39:00,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (1/1) ... [2022-11-25 17:39:00,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:39:00,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:39:00,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:39:00,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d5d68b-6b5c-4b0e-8936-58a85c3548b8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:39:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 17:39:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 17:39:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 17:39:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 17:39:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:39:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:39:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:39:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:39:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:39:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:39:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:39:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:39:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:39:00,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:39:01,009 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:39:01,011 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:39:02,053 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:39:02,075 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:39:02,075 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:39:02,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:39:02 BoogieIcfgContainer [2022-11-25 17:39:02,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:39:02,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:39:02,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:39:02,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:39:02,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:38:59" (1/3) ... [2022-11-25 17:39:02,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8daafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:39:02, skipping insertion in model container [2022-11-25 17:39:02,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:00" (2/3) ... [2022-11-25 17:39:02,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8daafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:39:02, skipping insertion in model container [2022-11-25 17:39:02,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:39:02" (3/3) ... [2022-11-25 17:39:02,095 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2022-11-25 17:39:02,104 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:39:02,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:39:02,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-25 17:39:02,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:39:02,384 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 17:39:02,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 553 places, 561 transitions, 1138 flow [2022-11-25 17:39:02,799 INFO L130 PetriNetUnfolder]: 15/559 cut-off events. [2022-11-25 17:39:02,799 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:39:02,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 559 events. 15/559 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 781 event pairs, 0 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-25 17:39:02,817 INFO L82 GeneralOperation]: Start removeDead. Operand has 553 places, 561 transitions, 1138 flow [2022-11-25 17:39:02,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 538 places, 545 transitions, 1099 flow [2022-11-25 17:39:02,835 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:39:02,855 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 538 places, 545 transitions, 1099 flow [2022-11-25 17:39:02,860 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 538 places, 545 transitions, 1099 flow [2022-11-25 17:39:02,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 538 places, 545 transitions, 1099 flow [2022-11-25 17:39:03,020 INFO L130 PetriNetUnfolder]: 14/545 cut-off events. [2022-11-25 17:39:03,020 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:39:03,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 545 events. 14/545 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 738 event pairs, 0 based on Foata normal form. 0/487 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-25 17:39:03,062 INFO L119 LiptonReduction]: Number of co-enabled transitions 83848 [2022-11-25 17:39:39,253 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:39:46,181 WARN L233 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:39:52,694 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:39:58,496 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:40:12,484 WARN L233 SmtUtils]: Spent 13.92s on a formula simplification. DAG size of input: 243 DAG size of output: 235 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:40:22,144 WARN L233 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:40:39,155 WARN L233 SmtUtils]: Spent 17.01s on a formula simplification. DAG size of input: 247 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:40:42,127 INFO L134 LiptonReduction]: Checked pairs total: 1444134 [2022-11-25 17:40:42,127 INFO L136 LiptonReduction]: Total number of compositions: 367 [2022-11-25 17:40:42,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:42,147 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;@7a67aa4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:42,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-25 17:40:42,149 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:40:42,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:42,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:42,150 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:40:42,151 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)] === [2022-11-25 17:40:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2022-11-25 17:40:42,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:42,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427015158] [2022-11-25 17:40:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:42,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:42,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:42,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427015158] [2022-11-25 17:40:42,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427015158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:42,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:42,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:40:42,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671556326] [2022-11-25 17:40:42,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:42,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:40:42,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:40:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:40:42,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 548 out of 928 [2022-11-25 17:40:42,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 269 transitions, 547 flow. Second operand has 2 states, 2 states have (on average 548.5) internal successors, (1097), 2 states have internal predecessors, (1097), 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) [2022-11-25 17:40:42,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:42,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 548 of 928 [2022-11-25 17:40:42,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:44,753 INFO L130 PetriNetUnfolder]: 3999/12142 cut-off events. [2022-11-25 17:40:44,754 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-11-25 17:40:44,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18746 conditions, 12142 events. 3999/12142 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 104645 event pairs, 3507 based on Foata normal form. 92/11307 useless extension candidates. Maximal degree in co-relation 18338. Up to 6483 conditions per place. [2022-11-25 17:40:44,837 INFO L137 encePairwiseOnDemand]: 919/928 looper letters, 83 selfloop transitions, 0 changer transitions 0/260 dead transitions. [2022-11-25 17:40:44,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 260 transitions, 695 flow [2022-11-25 17:40:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:40:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:40:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1188 transitions. [2022-11-25 17:40:44,860 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6400862068965517 [2022-11-25 17:40:44,861 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1188 transitions. [2022-11-25 17:40:44,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1188 transitions. [2022-11-25 17:40:44,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:44,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1188 transitions. [2022-11-25 17:40:44,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 594.0) internal successors, (1188), 2 states have internal predecessors, (1188), 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) [2022-11-25 17:40:44,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 928.0) internal successors, (2784), 3 states have internal predecessors, (2784), 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) [2022-11-25 17:40:44,887 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 928.0) internal successors, (2784), 3 states have internal predecessors, (2784), 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) [2022-11-25 17:40:44,889 INFO L175 Difference]: Start difference. First operand has 267 places, 269 transitions, 547 flow. Second operand 2 states and 1188 transitions. [2022-11-25 17:40:44,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 260 transitions, 695 flow [2022-11-25 17:40:44,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 260 transitions, 690 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:44,909 INFO L231 Difference]: Finished difference. Result has 258 places, 260 transitions, 524 flow [2022-11-25 17:40:44,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=928, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=524, PETRI_PLACES=258, PETRI_TRANSITIONS=260} [2022-11-25 17:40:44,917 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -9 predicate places. [2022-11-25 17:40:44,917 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 260 transitions, 524 flow [2022-11-25 17:40:44,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 548.5) internal successors, (1097), 2 states have internal predecessors, (1097), 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) [2022-11-25 17:40:44,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:44,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:44,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:44,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-25 17:40:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:44,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1004815160, now seen corresponding path program 1 times [2022-11-25 17:40:44,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:44,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877425441] [2022-11-25 17:40:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:44,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:45,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:45,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877425441] [2022-11-25 17:40:45,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877425441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:45,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:45,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:40:45,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350543199] [2022-11-25 17:40:45,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:45,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:45,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 928 [2022-11-25 17:40:45,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 260 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 544.6666666666666) internal successors, (1634), 3 states have internal predecessors, (1634), 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) [2022-11-25 17:40:45,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:45,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 928 [2022-11-25 17:40:45,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:49,065 INFO L130 PetriNetUnfolder]: 6769/19144 cut-off events. [2022-11-25 17:40:49,065 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-25 17:40:49,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30204 conditions, 19144 events. 6769/19144 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 166421 event pairs, 1587 based on Foata normal form. 0/17440 useless extension candidates. Maximal degree in co-relation 30201. Up to 6008 conditions per place. [2022-11-25 17:40:49,211 INFO L137 encePairwiseOnDemand]: 922/928 looper letters, 160 selfloop transitions, 5 changer transitions 0/338 dead transitions. [2022-11-25 17:40:49,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 338 transitions, 1011 flow [2022-11-25 17:40:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1792 transitions. [2022-11-25 17:40:49,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2022-11-25 17:40:49,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1792 transitions. [2022-11-25 17:40:49,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1792 transitions. [2022-11-25 17:40:49,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:49,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1792 transitions. [2022-11-25 17:40:49,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 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) [2022-11-25 17:40:49,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 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) [2022-11-25 17:40:49,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 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) [2022-11-25 17:40:49,235 INFO L175 Difference]: Start difference. First operand has 258 places, 260 transitions, 524 flow. Second operand 3 states and 1792 transitions. [2022-11-25 17:40:49,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 338 transitions, 1011 flow [2022-11-25 17:40:49,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 338 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:40:49,246 INFO L231 Difference]: Finished difference. Result has 262 places, 265 transitions, 566 flow [2022-11-25 17:40:49,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=928, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=262, PETRI_TRANSITIONS=265} [2022-11-25 17:40:49,247 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -5 predicate places. [2022-11-25 17:40:49,248 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 265 transitions, 566 flow [2022-11-25 17:40:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 544.6666666666666) internal successors, (1634), 3 states have internal predecessors, (1634), 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) [2022-11-25 17:40:49,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:49,249 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:40:49,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-25 17:40:49,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash 684808694, now seen corresponding path program 1 times [2022-11-25 17:40:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:49,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839727786] [2022-11-25 17:40:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:49,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:49,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839727786] [2022-11-25 17:40:49,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839727786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:49,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:49,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:49,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903012314] [2022-11-25 17:40:49,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:49,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:40:49,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:49,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:40:49,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:51,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 928 [2022-11-25 17:40:51,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 265 transitions, 566 flow. Second operand has 6 states, 6 states have (on average 449.5) internal successors, (2697), 6 states have internal predecessors, (2697), 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) [2022-11-25 17:40:51,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:51,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 928 [2022-11-25 17:40:51,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:59,130 INFO L130 PetriNetUnfolder]: 24509/49416 cut-off events. [2022-11-25 17:40:59,130 INFO L131 PetriNetUnfolder]: For 1538/2068 co-relation queries the response was YES. [2022-11-25 17:40:59,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91440 conditions, 49416 events. 24509/49416 cut-off events. For 1538/2068 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 392377 event pairs, 13256 based on Foata normal form. 220/46324 useless extension candidates. Maximal degree in co-relation 91435. Up to 29510 conditions per place. [2022-11-25 17:40:59,459 INFO L137 encePairwiseOnDemand]: 872/928 looper letters, 281 selfloop transitions, 86 changer transitions 0/479 dead transitions. [2022-11-25 17:40:59,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 479 transitions, 1784 flow [2022-11-25 17:40:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:59,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3051 transitions. [2022-11-25 17:40:59,468 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5479525862068966 [2022-11-25 17:40:59,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3051 transitions. [2022-11-25 17:40:59,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3051 transitions. [2022-11-25 17:40:59,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:59,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3051 transitions. [2022-11-25 17:40:59,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 508.5) internal successors, (3051), 6 states have internal predecessors, (3051), 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) [2022-11-25 17:40:59,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 928.0) internal successors, (6496), 7 states have internal predecessors, (6496), 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) [2022-11-25 17:40:59,494 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 928.0) internal successors, (6496), 7 states have internal predecessors, (6496), 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) [2022-11-25 17:40:59,495 INFO L175 Difference]: Start difference. First operand has 262 places, 265 transitions, 566 flow. Second operand 6 states and 3051 transitions. [2022-11-25 17:40:59,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 479 transitions, 1784 flow [2022-11-25 17:40:59,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 479 transitions, 1758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:40:59,510 INFO L231 Difference]: Finished difference. Result has 270 places, 347 transitions, 1168 flow [2022-11-25 17:40:59,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=928, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1168, PETRI_PLACES=270, PETRI_TRANSITIONS=347} [2022-11-25 17:40:59,512 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, 3 predicate places. [2022-11-25 17:40:59,512 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 347 transitions, 1168 flow [2022-11-25 17:40:59,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.5) internal successors, (2697), 6 states have internal predecessors, (2697), 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) [2022-11-25 17:40:59,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:59,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:59,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:40:59,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-25 17:40:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:59,515 INFO L85 PathProgramCache]: Analyzing trace with hash -682101936, now seen corresponding path program 1 times [2022-11-25 17:40:59,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:59,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121564979] [2022-11-25 17:40:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:59,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:00,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:00,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121564979] [2022-11-25 17:41:00,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121564979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:00,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:00,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:41:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147200646] [2022-11-25 17:41:00,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:00,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:41:00,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:00,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:41:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:41:01,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 928 [2022-11-25 17:41:01,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 347 transitions, 1168 flow. Second operand has 6 states, 6 states have (on average 476.6666666666667) internal successors, (2860), 6 states have internal predecessors, (2860), 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) [2022-11-25 17:41:01,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:41:01,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 928 [2022-11-25 17:41:01,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand