./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/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_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/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_9fb1d051-e031-4964-8a70-15478bd7ce79/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 aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- 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 16:43:38,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:43:38,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:43:38,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:43:38,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:43:38,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:43:38,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:43:38,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:43:38,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:43:38,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:43:38,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:43:38,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:43:38,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:43:38,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:43:38,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:43:38,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:43:38,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:43:38,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:43:38,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:43:38,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:43:38,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:43:38,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:43:38,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:43:38,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:43:38,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:43:38,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:43:38,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:43:38,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:43:38,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:43:38,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:43:38,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:43:38,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:43:38,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:43:38,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:43:38,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:43:38,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:43:38,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:43:38,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:43:38,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:43:38,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:43:38,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:43:38,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:43:38,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:43:38,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:43:38,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:43:38,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:43:38,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:43:38,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:43:38,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:43:38,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:43:38,847 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:43:38,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:43:38,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:43:38,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:43:38,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:43:38,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:43:38,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:43:38,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:43:38,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:43:38,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:43:38,852 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:43:38,852 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:43:38,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:43:38,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:43:38,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:43:38,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:43:38,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:43:38,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:43:38,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:38,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:43:38,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:43:38,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:43:38,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:43:38,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:43:38,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:43:38,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:43:38,858 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:43:38,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:43:38,858 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_9fb1d051-e031-4964-8a70-15478bd7ce79/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2022-11-25 16:43:39,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:43:39,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:43:39,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:43:39,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:43:39,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:43:39,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-atomic/scull.i [2022-11-25 16:43:42,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:43:43,031 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:43:43,032 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i [2022-11-25 16:43:43,056 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/data/941eea443/7480c579094f443fb60affe8620637b9/FLAGa959eca3b [2022-11-25 16:43:43,075 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/data/941eea443/7480c579094f443fb60affe8620637b9 [2022-11-25 16:43:43,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:43:43,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:43:43,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:43,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:43:43,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:43:43,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dd9089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43, skipping insertion in model container [2022-11-25 16:43:43,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:43:43,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:43:43,635 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-25 16:43:43,659 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-25 16:43:43,666 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-25 16:43:43,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:43,709 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:43:43,751 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[30879,30892] [2022-11-25 16:43:43,757 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[31740,31753] [2022-11-25 16:43:43,761 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_9fb1d051-e031-4964-8a70-15478bd7ce79/sv-benchmarks/c/pthread-atomic/scull.i[32508,32521] [2022-11-25 16:43:43,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:43,828 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:43:43,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43 WrapperNode [2022-11-25 16:43:43,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:43,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:43,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:43:43,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:43:43,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,931 INFO L138 Inliner]: procedures = 185, calls = 66, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 532 [2022-11-25 16:43:43,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:43,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:43:43,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:43:43,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:43:43,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:43,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:43:43,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:43:43,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:43:43,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:43:43,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (1/1) ... [2022-11-25 16:43:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:44,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:44,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:44,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb1d051-e031-4964-8a70-15478bd7ce79/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:43:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:43:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:43:44,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:43:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:43:44,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:43:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:43:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 16:43:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:43:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-11-25 16:43:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-11-25 16:43:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:43:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:43:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:43:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:43:44,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:43:44,117 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 16:43:44,317 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:43:44,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:43:44,465 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-11-25 16:43:44,465 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: assume -2147483648 <= scull_cleanup_module_#t~ret42#1 && scull_cleanup_module_#t~ret42#1 <= 2147483647; [2022-11-25 16:43:44,465 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: havoc scull_cleanup_module_#t~ret42#1; [2022-11-25 16:43:44,466 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-11-25 16:43:44,466 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret42#1 := scull_trim_#res#1; [2022-11-25 16:43:44,466 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-11-25 16:43:45,306 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:43:45,340 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:43:45,340 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:43:45,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:45 BoogieIcfgContainer [2022-11-25 16:43:45,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:43:45,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:43:45,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:43:45,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:43:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:43:43" (1/3) ... [2022-11-25 16:43:45,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2810e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:45, skipping insertion in model container [2022-11-25 16:43:45,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:43" (2/3) ... [2022-11-25 16:43:45,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2810e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:45, skipping insertion in model container [2022-11-25 16:43:45,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:45" (3/3) ... [2022-11-25 16:43:45,359 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2022-11-25 16:43:45,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:43:45,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:43:45,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-11-25 16:43:45,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:43:45,674 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 16:43:45,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 602 transitions, 1228 flow [2022-11-25 16:43:46,205 INFO L130 PetriNetUnfolder]: 16/599 cut-off events. [2022-11-25 16:43:46,206 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 16:43:46,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 599 events. 16/599 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1798 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 534. Up to 4 conditions per place. [2022-11-25 16:43:46,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 596 places, 602 transitions, 1228 flow [2022-11-25 16:43:46,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 587 transitions, 1189 flow [2022-11-25 16:43:46,264 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:43:46,296 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 587 transitions, 1189 flow [2022-11-25 16:43:46,299 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 587 transitions, 1189 flow [2022-11-25 16:43:46,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 587 transitions, 1189 flow [2022-11-25 16:43:46,547 INFO L130 PetriNetUnfolder]: 16/587 cut-off events. [2022-11-25 16:43:46,548 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 16:43:46,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 587 events. 16/587 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1798 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 534. Up to 4 conditions per place. [2022-11-25 16:43:46,680 INFO L119 LiptonReduction]: Number of co-enabled transitions 178250 [2022-11-25 16:44:07,161 INFO L134 LiptonReduction]: Checked pairs total: 1057118 [2022-11-25 16:44:07,162 INFO L136 LiptonReduction]: Total number of compositions: 617 [2022-11-25 16:44:07,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:44:07,200 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;@488acec4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:44:07,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-25 16:44:07,207 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-25 16:44:07,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:44:07,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:44:07,210 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:44:07,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 16:44:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2338562, now seen corresponding path program 1 times [2022-11-25 16:44:07,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:07,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289026560] [2022-11-25 16:44:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:07,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:07,565 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 16:44:07,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289026560] [2022-11-25 16:44:07,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289026560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:07,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:07,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:44:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442693433] [2022-11-25 16:44:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:07,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:44:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:44:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:44:07,626 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1219 [2022-11-25 16:44:07,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 179 transitions, 373 flow. Second operand has 2 states, 2 states have (on average 589.5) internal successors, (1179), 2 states have internal predecessors, (1179), 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 16:44:07,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:44:07,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1219 [2022-11-25 16:44:07,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:44:22,821 INFO L130 PetriNetUnfolder]: 65199/115805 cut-off events. [2022-11-25 16:44:22,822 INFO L131 PetriNetUnfolder]: For 3099/3099 co-relation queries the response was YES. [2022-11-25 16:44:23,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208588 conditions, 115805 events. 65199/115805 cut-off events. For 3099/3099 co-relation queries the response was YES. Maximal size of possible extension queue 1568. Compared 1069463 event pairs, 59455 based on Foata normal form. 1638/108299 useless extension candidates. Maximal degree in co-relation 193750. Up to 91017 conditions per place. [2022-11-25 16:44:23,582 INFO L137 encePairwiseOnDemand]: 1203/1219 looper letters, 89 selfloop transitions, 0 changer transitions 0/163 dead transitions. [2022-11-25 16:44:23,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 163 transitions, 519 flow [2022-11-25 16:44:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:44:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:44:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1281 transitions. [2022-11-25 16:44:23,608 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5254306808859721 [2022-11-25 16:44:23,609 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1281 transitions. [2022-11-25 16:44:23,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1281 transitions. [2022-11-25 16:44:23,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:44:23,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1281 transitions. [2022-11-25 16:44:23,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 640.5) internal successors, (1281), 2 states have internal predecessors, (1281), 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 16:44:23,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1219.0) internal successors, (3657), 3 states have internal predecessors, (3657), 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 16:44:23,641 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1219.0) internal successors, (3657), 3 states have internal predecessors, (3657), 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 16:44:23,644 INFO L175 Difference]: Start difference. First operand has 177 places, 179 transitions, 373 flow. Second operand 2 states and 1281 transitions. [2022-11-25 16:44:23,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 163 transitions, 519 flow [2022-11-25 16:44:23,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 163 transitions, 510 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 16:44:23,692 INFO L231 Difference]: Finished difference. Result has 162 places, 163 transitions, 332 flow [2022-11-25 16:44:23,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=332, PETRI_PLACES=162, PETRI_TRANSITIONS=163} [2022-11-25 16:44:23,699 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -15 predicate places. [2022-11-25 16:44:23,699 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 163 transitions, 332 flow [2022-11-25 16:44:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 589.5) internal successors, (1179), 2 states have internal predecessors, (1179), 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 16:44:23,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:44:23,702 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 16:44:23,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:44:23,708 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 16:44:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:23,720 INFO L85 PathProgramCache]: Analyzing trace with hash 72495895, now seen corresponding path program 1 times [2022-11-25 16:44:23,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:23,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234150170] [2022-11-25 16:44:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:23,857 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 16:44:23,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:23,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234150170] [2022-11-25 16:44:23,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234150170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:23,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:23,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:44:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595847252] [2022-11-25 16:44:23,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:23,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:44:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:44:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:23,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1219 [2022-11-25 16:44:23,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 163 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 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 16:44:23,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:44:23,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1219 [2022-11-25 16:44:23,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:44:49,429 INFO L130 PetriNetUnfolder]: 142994/250892 cut-off events. [2022-11-25 16:44:49,429 INFO L131 PetriNetUnfolder]: For 1615/1615 co-relation queries the response was YES. [2022-11-25 16:44:49,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454156 conditions, 250892 events. 142994/250892 cut-off events. For 1615/1615 co-relation queries the response was YES. Maximal size of possible extension queue 3290. Compared 2523352 event pairs, 57375 based on Foata normal form. 0/231315 useless extension candidates. Maximal degree in co-relation 454153. Up to 123599 conditions per place. [2022-11-25 16:44:50,825 INFO L137 encePairwiseOnDemand]: 1201/1219 looper letters, 182 selfloop transitions, 13 changer transitions 0/257 dead transitions. [2022-11-25 16:44:50,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 257 transitions, 915 flow [2022-11-25 16:44:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:44:50,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:44:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1910 transitions. [2022-11-25 16:44:50,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5222860267979218 [2022-11-25 16:44:50,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1910 transitions. [2022-11-25 16:44:50,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1910 transitions. [2022-11-25 16:44:50,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:44:50,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1910 transitions. [2022-11-25 16:44:50,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.6666666666666) internal successors, (1910), 3 states have internal predecessors, (1910), 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 16:44:50,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1219.0) internal successors, (4876), 4 states have internal predecessors, (4876), 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 16:44:50,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1219.0) internal successors, (4876), 4 states have internal predecessors, (4876), 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 16:44:50,856 INFO L175 Difference]: Start difference. First operand has 162 places, 163 transitions, 332 flow. Second operand 3 states and 1910 transitions. [2022-11-25 16:44:50,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 257 transitions, 915 flow [2022-11-25 16:44:50,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 257 transitions, 915 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:44:50,863 INFO L231 Difference]: Finished difference. Result has 166 places, 176 transitions, 446 flow [2022-11-25 16:44:50,864 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=166, PETRI_TRANSITIONS=176} [2022-11-25 16:44:50,865 INFO L288 CegarLoopForPetriNet]: 177 programPoint places, -11 predicate places. [2022-11-25 16:44:50,865 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 176 transitions, 446 flow [2022-11-25 16:44:50,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 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 16:44:50,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:44:50,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:50,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:44:50,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 16:44:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2101904515, now seen corresponding path program 1 times [2022-11-25 16:44:50,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:50,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6125444] [2022-11-25 16:44:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:50,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:50,991 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 16:44:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:50,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6125444] [2022-11-25 16:44:50,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6125444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:50,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:50,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:44:50,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654950447] [2022-11-25 16:44:50,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:50,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:44:50,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:50,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:44:50,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:51,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 582 out of 1219 [2022-11-25 16:44:51,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 176 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 584.3333333333334) internal successors, (1753), 3 states have internal predecessors, (1753), 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 16:44:51,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:44:51,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 582 of 1219 [2022-11-25 16:44:51,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand