./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS --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 b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd --- 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-4e7fbc6 [2022-11-23 03:12:55,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:12:55,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:12:55,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:12:55,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:12:55,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:12:55,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:12:55,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:12:55,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:12:55,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:12:55,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:12:55,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:12:55,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:12:55,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:12:55,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:12:55,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:12:55,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:12:55,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:12:55,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:12:55,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:12:55,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:12:55,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:12:55,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:12:55,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:12:55,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:12:55,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:12:55,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:12:55,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:12:55,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:12:55,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:12:55,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:12:55,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:12:55,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:12:55,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:12:55,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:12:55,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:12:55,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:12:55,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:12:55,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:12:55,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:12:55,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:12:55,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 03:12:55,789 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:12:55,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:12:55,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:12:55,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:12:55,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:12:55,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:12:55,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:12:55,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:12:55,791 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:12:55,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:12:55,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:12:55,792 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:12:55,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:12:55,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:12:55,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:12:55,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:12:55,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:12:55,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:12:55,798 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 03:12:55,798 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:12:55,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:12:55,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:12:55,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:12:55,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:12:55,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:12:55,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:12:55,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:12:55,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:12:55,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:12:55,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:12:55,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:12:55,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:12:55,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:12:55,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:12:55,802 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:12:55,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:12:55,802 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_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd [2022-11-23 03:12:56,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:12:56,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:12:56,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:12:56,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:12:56,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:12:56,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2022-11-23 03:12:59,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:12:59,763 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:12:59,764 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2022-11-23 03:12:59,802 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/data/e8636fc12/035c79da5bed4bdc9c6c188c6b68e3b5/FLAG4892ff8c3 [2022-11-23 03:12:59,817 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/data/e8636fc12/035c79da5bed4bdc9c6c188c6b68e3b5 [2022-11-23 03:12:59,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:12:59,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:12:59,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:12:59,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:12:59,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:12:59,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:59" (1/1) ... [2022-11-23 03:12:59,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611b3441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:59, skipping insertion in model container [2022-11-23 03:12:59,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:59" (1/1) ... [2022-11-23 03:12:59,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:12:59,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:13:00,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:13:00,455 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:13:00,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:13:00,613 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:13:00,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00 WrapperNode [2022-11-23 03:13:00,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:13:00,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:13:00,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:13:00,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:13:00,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,692 INFO L138 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-11-23 03:13:00,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:13:00,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:13:00,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:13:00,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:13:00,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,738 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:13:00,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:13:00,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:13:00,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:13:00,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (1/1) ... [2022-11-23 03:13:00,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:13:00,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:13:00,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:13:00,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:13:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:13:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:13:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:13:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:13:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:13:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 03:13:00,841 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 03:13:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:13:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:13:00,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:13:00,843 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:13:01,048 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:13:01,050 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:13:01,262 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:13:01,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:13:01,271 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:13:01,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:01 BoogieIcfgContainer [2022-11-23 03:13:01,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:13:01,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:13:01,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:13:01,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:13:01,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:12:59" (1/3) ... [2022-11-23 03:13:01,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f901a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:01, skipping insertion in model container [2022-11-23 03:13:01,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:00" (2/3) ... [2022-11-23 03:13:01,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f901a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:01, skipping insertion in model container [2022-11-23 03:13:01,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:01" (3/3) ... [2022-11-23 03:13:01,288 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i [2022-11-23 03:13:01,302 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:13:01,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:13:01,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-23 03:13:01,311 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:13:01,376 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:13:01,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 85 transitions, 175 flow [2022-11-23 03:13:01,480 INFO L130 PetriNetUnfolder]: 0/84 cut-off events. [2022-11-23 03:13:01,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:13:01,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 0/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 03:13:01,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 85 transitions, 175 flow [2022-11-23 03:13:01,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 84 transitions, 171 flow [2022-11-23 03:13:01,514 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:13:01,532 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 84 transitions, 171 flow [2022-11-23 03:13:01,535 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 84 transitions, 171 flow [2022-11-23 03:13:01,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 84 transitions, 171 flow [2022-11-23 03:13:01,585 INFO L130 PetriNetUnfolder]: 0/84 cut-off events. [2022-11-23 03:13:01,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:13:01,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 0/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 03:13:01,591 INFO L119 LiptonReduction]: Number of co-enabled transitions 1488 [2022-11-23 03:13:04,591 INFO L134 LiptonReduction]: Checked pairs total: 5508 [2022-11-23 03:13:04,592 INFO L136 LiptonReduction]: Total number of compositions: 65 [2022-11-23 03:13:04,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:13:04,629 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;@49e61ac8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:13:04,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-23 03:13:04,634 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 03:13:04,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:13:04,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:04,636 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:13:04,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:04,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash 292971, now seen corresponding path program 1 times [2022-11-23 03:13:04,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:04,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954761527] [2022-11-23 03:13:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:04,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:04,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:04,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954761527] [2022-11-23 03:13:04,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954761527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:04,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:04,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:13:04,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856539166] [2022-11-23 03:13:04,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:04,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:13:04,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:13:04,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:13:04,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 150 [2022-11-23 03:13:04,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 55 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-11-23 03:13:04,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:04,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 150 [2022-11-23 03:13:04,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:05,042 INFO L130 PetriNetUnfolder]: 42/136 cut-off events. [2022-11-23 03:13:05,042 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:13:05,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 136 events. 42/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 506 event pairs, 42 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 231. Up to 100 conditions per place. [2022-11-23 03:13:05,048 INFO L137 encePairwiseOnDemand]: 149/150 looper letters, 15 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-11-23 03:13:05,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 83 flow [2022-11-23 03:13:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:13:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:13:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-11-23 03:13:05,065 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6133333333333333 [2022-11-23 03:13:05,066 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 184 transitions. [2022-11-23 03:13:05,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 184 transitions. [2022-11-23 03:13:05,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:05,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 184 transitions. [2022-11-23 03:13:05,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 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) [2022-11-23 03:13:05,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2022-11-23 03:13:05,087 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2022-11-23 03:13:05,090 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 55 flow. Second operand 2 states and 184 transitions. [2022-11-23 03:13:05,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 83 flow [2022-11-23 03:13:05,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:13:05,095 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 52 flow [2022-11-23 03:13:05,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2022-11-23 03:13:05,103 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2022-11-23 03:13:05,103 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 52 flow [2022-11-23 03:13:05,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-11-23 03:13:05,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:05,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:13:05,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:13:05,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 281523918, now seen corresponding path program 1 times [2022-11-23 03:13:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:05,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075697733] [2022-11-23 03:13:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:05,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:05,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075697733] [2022-11-23 03:13:05,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075697733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:05,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:05,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:13:05,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899415375] [2022-11-23 03:13:05,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:05,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:05,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:05,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 150 [2022-11-23 03:13:05,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2022-11-23 03:13:05,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:05,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 150 [2022-11-23 03:13:05,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:05,416 INFO L130 PetriNetUnfolder]: 75/237 cut-off events. [2022-11-23 03:13:05,416 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:13:05,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 237 events. 75/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1156 event pairs, 10 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 418. Up to 91 conditions per place. [2022-11-23 03:13:05,420 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 26 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2022-11-23 03:13:05,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 134 flow [2022-11-23 03:13:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2022-11-23 03:13:05,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-11-23 03:13:05,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2022-11-23 03:13:05,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2022-11-23 03:13:05,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:05,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2022-11-23 03:13:05,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2022-11-23 03:13:05,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,437 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 52 flow. Second operand 3 states and 270 transitions. [2022-11-23 03:13:05,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 134 flow [2022-11-23 03:13:05,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:13:05,440 INFO L231 Difference]: Finished difference. Result has 33 places, 27 transitions, 74 flow [2022-11-23 03:13:05,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2022-11-23 03:13:05,442 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2022-11-23 03:13:05,442 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 74 flow [2022-11-23 03:13:05,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2022-11-23 03:13:05,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:05,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:13:05,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:13:05,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:05,444 INFO L85 PathProgramCache]: Analyzing trace with hash 137466992, now seen corresponding path program 1 times [2022-11-23 03:13:05,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:05,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803332352] [2022-11-23 03:13:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:05,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:05,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:05,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803332352] [2022-11-23 03:13:05,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803332352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:05,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:05,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:13:05,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713023360] [2022-11-23 03:13:05,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:05,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:05,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:05,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:05,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:05,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 150 [2022-11-23 03:13:05,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:13:05,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:05,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 150 [2022-11-23 03:13:05,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:05,591 INFO L130 PetriNetUnfolder]: 93/275 cut-off events. [2022-11-23 03:13:05,593 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-23 03:13:05,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 275 events. 93/275 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1370 event pairs, 59 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 534. Up to 166 conditions per place. [2022-11-23 03:13:05,596 INFO L137 encePairwiseOnDemand]: 145/150 looper letters, 22 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2022-11-23 03:13:05,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 150 flow [2022-11-23 03:13:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2022-11-23 03:13:05,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5733333333333334 [2022-11-23 03:13:05,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2022-11-23 03:13:05,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2022-11-23 03:13:05,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:05,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2022-11-23 03:13:05,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2022-11-23 03:13:05,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,605 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 74 flow. Second operand 3 states and 258 transitions. [2022-11-23 03:13:05,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 150 flow [2022-11-23 03:13:05,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:13:05,607 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 104 flow [2022-11-23 03:13:05,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2022-11-23 03:13:05,608 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-11-23 03:13:05,608 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 104 flow [2022-11-23 03:13:05,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:13:05,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:05,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:05,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:13:05,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1037622213, now seen corresponding path program 1 times [2022-11-23 03:13:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:05,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330561716] [2022-11-23 03:13:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:05,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:05,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:05,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:05,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330561716] [2022-11-23 03:13:05,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330561716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:05,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:05,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:13:05,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238414509] [2022-11-23 03:13:05,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:05,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:05,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:05,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:05,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 150 [2022-11-23 03:13:05,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-11-23 03:13:05,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:05,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 150 [2022-11-23 03:13:05,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:05,804 INFO L130 PetriNetUnfolder]: 45/168 cut-off events. [2022-11-23 03:13:05,804 INFO L131 PetriNetUnfolder]: For 61/62 co-relation queries the response was YES. [2022-11-23 03:13:05,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 168 events. 45/168 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 748 event pairs, 31 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 350. Up to 91 conditions per place. [2022-11-23 03:13:05,806 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 21 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2022-11-23 03:13:05,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 164 flow [2022-11-23 03:13:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-11-23 03:13:05,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5755555555555556 [2022-11-23 03:13:05,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-11-23 03:13:05,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-11-23 03:13:05,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:05,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-11-23 03:13:05,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2022-11-23 03:13:05,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,812 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 104 flow. Second operand 3 states and 259 transitions. [2022-11-23 03:13:05,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 164 flow [2022-11-23 03:13:05,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 136 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-23 03:13:05,815 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 90 flow [2022-11-23 03:13:05,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2022-11-23 03:13:05,816 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-11-23 03:13:05,816 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 90 flow [2022-11-23 03:13:05,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-11-23 03:13:05,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:05,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:05,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:13:05,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:05,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1277128166, now seen corresponding path program 1 times [2022-11-23 03:13:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:05,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787793263] [2022-11-23 03:13:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:05,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:05,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:05,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787793263] [2022-11-23 03:13:05,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787793263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:05,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:05,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:13:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065667416] [2022-11-23 03:13:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:05,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:05,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 150 [2022-11-23 03:13:05,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2022-11-23 03:13:05,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:05,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 150 [2022-11-23 03:13:05,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:05,944 INFO L130 PetriNetUnfolder]: 77/229 cut-off events. [2022-11-23 03:13:05,944 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-11-23 03:13:05,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 229 events. 77/229 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1018 event pairs, 30 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 537. Up to 107 conditions per place. [2022-11-23 03:13:05,945 INFO L137 encePairwiseOnDemand]: 145/150 looper letters, 29 selfloop transitions, 4 changer transitions 4/42 dead transitions. [2022-11-23 03:13:05,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 212 flow [2022-11-23 03:13:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2022-11-23 03:13:05,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2022-11-23 03:13:05,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2022-11-23 03:13:05,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2022-11-23 03:13:05,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:05,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2022-11-23 03:13:05,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-11-23 03:13:05,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:05,951 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 90 flow. Second operand 3 states and 264 transitions. [2022-11-23 03:13:05,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 212 flow [2022-11-23 03:13:05,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:13:05,953 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 106 flow [2022-11-23 03:13:05,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2022-11-23 03:13:05,954 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-11-23 03:13:05,954 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 106 flow [2022-11-23 03:13:05,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2022-11-23 03:13:05,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:05,954 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:05,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:13:05,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -746249051, now seen corresponding path program 1 times [2022-11-23 03:13:05,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:05,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644710554] [2022-11-23 03:13:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:05,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:05,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644710554] [2022-11-23 03:13:05,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644710554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:05,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:05,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:13:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057718520] [2022-11-23 03:13:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:05,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:05,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:06,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2022-11-23 03:13:06,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-11-23 03:13:06,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:06,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2022-11-23 03:13:06,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:06,070 INFO L130 PetriNetUnfolder]: 64/203 cut-off events. [2022-11-23 03:13:06,071 INFO L131 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2022-11-23 03:13:06,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 203 events. 64/203 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 903 event pairs, 40 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 554. Up to 153 conditions per place. [2022-11-23 03:13:06,072 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 22 selfloop transitions, 3 changer transitions 5/36 dead transitions. [2022-11-23 03:13:06,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 190 flow [2022-11-23 03:13:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-11-23 03:13:06,074 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5622222222222222 [2022-11-23 03:13:06,074 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2022-11-23 03:13:06,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2022-11-23 03:13:06,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:06,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2022-11-23 03:13:06,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2022-11-23 03:13:06,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:06,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:06,077 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 106 flow. Second operand 3 states and 253 transitions. [2022-11-23 03:13:06,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 190 flow [2022-11-23 03:13:06,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:13:06,080 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 103 flow [2022-11-23 03:13:06,080 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2022-11-23 03:13:06,081 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2022-11-23 03:13:06,081 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 103 flow [2022-11-23 03:13:06,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-11-23 03:13:06,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:06,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:06,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:13:06,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:06,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1168588883, now seen corresponding path program 1 times [2022-11-23 03:13:06,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:06,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212552174] [2022-11-23 03:13:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:06,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:06,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212552174] [2022-11-23 03:13:06,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212552174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:06,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:06,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:13:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421994715] [2022-11-23 03:13:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:06,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:13:06,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:13:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:13:06,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 150 [2022-11-23 03:13:06,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-11-23 03:13:06,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:06,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 150 [2022-11-23 03:13:06,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:06,327 INFO L130 PetriNetUnfolder]: 38/187 cut-off events. [2022-11-23 03:13:06,327 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2022-11-23 03:13:06,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 187 events. 38/187 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 923 event pairs, 5 based on Foata normal form. 10/197 useless extension candidates. Maximal degree in co-relation 537. Up to 75 conditions per place. [2022-11-23 03:13:06,329 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 20 selfloop transitions, 6 changer transitions 3/38 dead transitions. [2022-11-23 03:13:06,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 211 flow [2022-11-23 03:13:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:13:06,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:13:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-11-23 03:13:06,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5755555555555556 [2022-11-23 03:13:06,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-11-23 03:13:06,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-11-23 03:13:06,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:06,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-11-23 03:13:06,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2022-11-23 03:13:06,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:06,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2022-11-23 03:13:06,336 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 103 flow. Second operand 3 states and 259 transitions. [2022-11-23 03:13:06,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 211 flow [2022-11-23 03:13:06,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:13:06,342 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 124 flow [2022-11-23 03:13:06,342 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2022-11-23 03:13:06,343 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2022-11-23 03:13:06,343 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 124 flow [2022-11-23 03:13:06,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-11-23 03:13:06,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:13:06,344 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:06,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:13:06,345 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:13:06,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash -403478217, now seen corresponding path program 2 times [2022-11-23 03:13:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:06,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845125196] [2022-11-23 03:13:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:06,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:06,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:06,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845125196] [2022-11-23 03:13:06,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845125196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:13:06,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:13:06,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:13:06,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575688204] [2022-11-23 03:13:06,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:13:06,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:13:06,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:13:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:13:06,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2022-11-23 03:13:06,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2022-11-23 03:13:06,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:13:06,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2022-11-23 03:13:06,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:13:06,753 INFO L130 PetriNetUnfolder]: 15/110 cut-off events. [2022-11-23 03:13:06,753 INFO L131 PetriNetUnfolder]: For 81/83 co-relation queries the response was YES. [2022-11-23 03:13:06,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 110 events. 15/110 cut-off events. For 81/83 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 421 event pairs, 5 based on Foata normal form. 7/117 useless extension candidates. Maximal degree in co-relation 332. Up to 53 conditions per place. [2022-11-23 03:13:06,754 INFO L137 encePairwiseOnDemand]: 145/150 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2022-11-23 03:13:06,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 164 flow [2022-11-23 03:13:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:13:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 03:13:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2022-11-23 03:13:06,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.545 [2022-11-23 03:13:06,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 327 transitions. [2022-11-23 03:13:06,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 327 transitions. [2022-11-23 03:13:06,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:13:06,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 327 transitions. [2022-11-23 03:13:06,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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) [2022-11-23 03:13:06,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 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) [2022-11-23 03:13:06,759 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 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) [2022-11-23 03:13:06,759 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 124 flow. Second operand 4 states and 327 transitions. [2022-11-23 03:13:06,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 164 flow [2022-11-23 03:13:06,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 150 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-23 03:13:06,763 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2022-11-23 03:13:06,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2022-11-23 03:13:06,765 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-11-23 03:13:06,765 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2022-11-23 03:13:06,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2022-11-23 03:13:06,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2022-11-23 03:13:06,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-11-23 03:13:06,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2022-11-23 03:13:06,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-11-23 03:13:06,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2022-11-23 03:13:06,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2022-11-23 03:13:06,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-11-23 03:13:06,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-11-23 03:13:06,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-11-23 03:13:06,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:13:06,771 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:13:06,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:13:06,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:13:06,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:13:06 BasicIcfg [2022-11-23 03:13:06,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:13:06,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:13:06,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:13:06,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:13:06,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:01" (3/4) ... [2022-11-23 03:13:06,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:13:06,793 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 03:13:06,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 03:13:06,797 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 03:13:06,798 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:13:06,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:13:06,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:13:06,834 INFO L158 Benchmark]: Toolchain (without parser) took 7012.33ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 121.4MB in the beginning and 114.5MB in the end (delta: 6.9MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,834 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:13:06,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.29ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 93.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.93ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 91.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,835 INFO L158 Benchmark]: Boogie Preprocessor took 58.96ms. Allocated memory is still 155.2MB. Free memory was 91.4MB in the beginning and 89.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,835 INFO L158 Benchmark]: RCFGBuilder took 520.30ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 76.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,836 INFO L158 Benchmark]: TraceAbstraction took 5505.35ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 75.6MB in the beginning and 116.6MB in the end (delta: -41.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,836 INFO L158 Benchmark]: Witness Printer took 51.13ms. Allocated memory is still 203.4MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:13:06,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.29ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 93.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.93ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 91.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.96ms. Allocated memory is still 155.2MB. Free memory was 91.4MB in the beginning and 89.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.30ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 76.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5505.35ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 75.6MB in the beginning and 116.6MB in the end (delta: -41.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 51.13ms. Allocated memory is still 203.4MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 88 PlacesBefore, 30 PlacesAfterwards, 84 TransitionsBefore, 26 TransitionsAfterwards, 1488 CoEnabledTransitionPairs, 8 FixpointIterations, 27 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 5508 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2731, independent: 2385, independent conditional: 0, independent unconditional: 2385, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1112, independent: 1049, independent conditional: 0, independent unconditional: 1049, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1112, independent: 996, independent conditional: 0, independent unconditional: 996, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 116, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 264, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2731, independent: 1336, independent conditional: 0, independent unconditional: 1336, dependent: 283, dependent conditional: 0, dependent unconditional: 283, unknown: 1112, unknown conditional: 0, unknown unconditional: 1112] , Statistics on independence cache: Total cache size (in pairs): 221, Positive cache size: 190, Positive conditional cache size: 0, Positive unconditional cache size: 190, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 941]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 944]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 119 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 36 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:13:06,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0e52a3d-13e1-4543-9d62-1a072003bf12/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE